Sam's Tube Substitution Handbook Vol. 16
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Sam's Tube Substitution Handbook Vol. 16
Sam's Tube Substitution Handbook Vol. 16
to replace use to replace ooa 1aj4 1af4, 1am4, it45f, 01a 12a,112a 1ae4*,1t4* oa2 1am4 laf4, laj4, 1t45f, oa3 oa3a, vr7s 1ae4*,1t4* oa3a oa3, vr7s 1ans oa4g 1aqs 1 rs5f, 1 rs* oas lars lafs, 1ahs, 15s*
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Extracted Text
TUBE SUBSTITUTION
handbook
by
The Howard W. Sams Engineering Staff
() I
HOWARD W. SAMS & CO., INC. THE BOBBS-MERRILL CO., INC.
I NDIANAPOLIS � KANSAS CITY � NEW YORK
SIXTEENTH EDITION
FIRST PRINTING
Copyright � 1960, 1961, 1962, 1963, 1964, 1966, 1967, 1968, 1969,
1970, 1971, 1972, and 1973 by Howard W. Sams & Co., Inc., Indianap� olis, Indiana 46268. Printed in the United States of America.
All rights reserved. Reproduction or use, without express permission, of editorial or pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the use of the information contained herein. While every precaution has been taken in the preparation of this book, the publisher assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from use of the information contained herein.
International Standard Book Number (Regular): 0-672-20939-X International Standard Book Number (Twin Pack): 0-672-20941- 1
library of Congress Catalog Card Number: 60-13842
CONTENTS
I n troduction
5
SECTION 1
Cross Reference of American Receiving Tubes
7
SECTION 2
Picture-Tube Substitutes . . . .. . . . . . . . . . . . . .. . . . . . . . . . .. 45
SECTION 3
Cross Reference of Subminiature Tubes . .. . . .. . . . . .. . . . . . 63
SECTION 4
I ndustrial Substitutes for Receiving Tubes . . . . . . . . . .. . ... . 69
SECTION 5
Communication s and Special-Purpose Tubes . . .. . . . . .. . . . . 73
SECTION 6
Foreig n Substitutes for American Types . .. . . . . .... . . .. . . . 79
SECTION 7
American Substitutes for Foreig n Types . . . . . . . . . . . . .. . . . . 89
INTRODUCTION
Although tube substitution should not be performed ind iscri m i n ately, there a r e numerous occasions when it is necessary and feas ible. For example, when you don't have the exact tube type with you on a service call, you'll either have to take the chassis to the shop (without know ing if a new tube would fix the trouble), or else make a special trip just to get the tube. The same appl ies if you're wor k i n g in the shop and need a replacement you don't have-you have to make a special trip to the d istributor. Such need less trips waste time and reduce profits.
Also, when a tube is out of production or the distributor does not have it in stock, a substitute is needed. On occas ion, too, it is desirable to use an improved version of the tube being replaced. For example, replacing a 6BK4 with the improved 6EN4 w ill usually result in better performance.
For your convenience, this handbook is d ivided into seven sec tions. The first section Iists rece iving tubes and thei r substitutes. The second section lists picture tubes and the i r substitutes. There are num erous occas ions when a picture-tube substitute is neces sary: The exact type may be out of production, or it may not be i m med iately available from the d istributor; in either case it is necessary to use a substitute. Also, in custom i nstallat ions a shorter necked picture tube may have to be chosen. At the end of the picture-tube section is a listing of those tubes requiring odd fila ment voltages (other than 6.3 volts), or low Eg2 potent ials. This in formation can be very useful when sett ing up your p icture tube testing and rejuvenati n g equipment.
The third section is a cross reference of subm i n i ature tubes. Section 4 lists receiving tubes which can be replaced with i ndus tr ial types. (Industrial tubes are more rugged than receiving types in that the ir peak ratings and power-handling characteristics are much higher; therefore, it may be desirable to substitute an indus trial tube to get more satisfactory results.) Sect ion 5 lists comm un i cations and special-purpose tubes.
Sections 6 and 7 list American and foreign equivalents. If you have an American tube and want to know what foreign type w ill
5
serve as a substitute, refer to Section 6. If you have a foreign tube and need to know what American type can be used as a substitute, refer to Section 7. This is a very useful section because of the large amount of foreign-made equipment being sold in this country. (Additional substitutes may be obtained by cross-referencing the
American substitutes given in Section 7 with listings in Section 1.)
For additional information, refer to the introductions to each section. Also pay particular attention to the various notes per taining to the substitutions. If you encounter additional substitu tions that can be made, they can be added on the pages allotted for that purpose at the end of each section.
6
Section 1
CROSS REFERENCE OF AMERICAN RECEIVING TUBES
This section lists all American receiving tubes which have been or are being manufactured. Also included are the latest tube types registered with EIA, but not yet in production.
To use this l isting, locate in the left-hand column the tube type to be replaced. Then, refer to the right-hand column for the substitute. The substitutes are only those tubes which have s i m ilar, or improved, characteristics and can be inserted di rectly i n to the socket. No rewir ing or mechan ical changes are needed, although the associated service controls may have to be readjusted.
The x-radiation levels emitted from a l l television receivers pro duced after January 15, 1970 must meet rigid government stan dards. These radiations are primarily produced by high-voltage rectifi er tubes, shunt-regulator tubes, and picture tubes. The radia tion level is controlled in later designed tubes. In this tube sub stitution guide, wherever poss i ble, only the newer tubes are sug gested as replacements. While other substitutes may appear suitable, they have not been listed because of the poss ibility of excessive radiation which m ight occur.
In some i nstances, the available space around the tube should be considered. For example, although electrically identical to a 6L6GB, a 6L6G is more than one inch taller and a half inch larger in diameter. Thus, the substitution may be physically impossi ble in some compact equipment.
Do not replace a tube in the right-hand column w ith one in the left-hand colum n because this may result in a tube with lesser qualifications being used. For example, where a high heater-to cathode potential exists, a 6AX4GTA will hold up, whereas a 6W4 will not. Thus, you'll find the 6AX4GTA listed as a substitute for the 6W4GTA, but not vice versa.
When no substitutes are shown, none are recom mended. Refer to Section 4 to see if an industrial replacement is recommended.
The mea n i ng of each footnote sym bol appears either at the bottom of each page, or at the begin ning of the section .
7
To Replace Use
To Replace Use
OOA
1AJ4
1AF4, 1AM4, IT45F,
01A
12A,112A
1AE4*,1T4*
OA2
1AM4
lAF4,lAJ4,1T45F,
OA3
OA3A, VR7S
1AE4*,1T4*
OA3A
OA3, VR7S
1ANS
OA4G
1AQS
1 RS5F,1RS*
OAS
lARS
lAFS, 1AHS,15S*
OB2
lASS
1US5F, 1DNS*,1US*
OB3
OB3A, VR90
1AU2
OB3A
OB3, VR90
lAU3
lN2,lN2A
OC2
1AY2
1 AY2-A
OC3
OC3A, VR10S
1AY2-A
OC3A
OC3,VR10S
lB3GT
lAU3, 1G3GT, lG3-GTA,
003
OD3A, VR1S0
lG3GT/1B3GT, 1J3,
OD3A
003, VR1S0
1J3A, 1K3, 1K3-A, 1N2,
OY4 OY4G
OY4G OY4
1N2A
1B4
1B4G, 1B4P, 1B4T,9S1,
�
OZ4 OZ4A
OZ4A, OZ4G (may require
shield)
OZ4, OZ4G (may require
shield)
1B4G
1A4,lA4P,lA4T,32, 34, lC4*, lK4* 1B4,1B4P,1B4T,9S1, 1A4,1A4P,lA4T,32,
.".', n "'
OZ4G
OZ4,OZ4A
34,lC4*,lK4*
1A3
1B4P
lB4, lB4G, 1B4T,32,9S1,
Z
lA4
lA4P,lA4T,lB4,lB4G,
lA4, lA4P, lA4T, 34,
lA4P
lB4P,lB4T,9S1,32,34,
lC4*,lK4*
1B4T
1A4, 1A4T, 1B4,1B4G,
1B4P,lB4T,9S1,32,34,
lC4*,lK4*
1BS
lC4*,lK4* 1B4, 1B4G,1B4T,32,9S1,
-f c:
lA4,lA4P,lA4T,34, 1C4*,lK4*
m "'
UI
1BS/2S5,2S,2S5
1A4T
1A4, 1A4P, 1B4, 1B4G,
1BS/2S5
lBS, 2S, 2S5
1ASG 1ASGT iASGT/G
lB4P,lB4T,9S1,32,34, 1C4*, 1K4* lASGT,lASGT/G,ITSGT 1ASG, 1ASGT/G, 1TSGT 1ASG,lASGT,1TSGT
lB6 1B7G
1B7GT
1B7GT,lA7G*,GT*, GT/G*,lB7GT/G
1B7G,lA7G*,GT* GT/G*,1B7G/G
0 0
.I .. n olio
lA6
1C6*
1B7GT/G 1B7G,GT,lA7G*,GT*,
1A7G
1A7GT, 1B7G*, GT*,
GT/G*
�
lA7GT/G,lB7GT/G*
1BBGT
lDBGT�
1A7GT
1A7G,lB7G*,GT*, lA7GT/G,lB7GT/G*
lBC2 1 BC2-A
lBC2-A, 1BC2-B 1 BC2-B
lA7GT/G lA7G,GT, 1B7G*,
1 BC2-B
1B7GT*,1B7GT/G*
1BG2
lABS
1BH2
lBH2-A
lAB6
lAC6*
lBH2-A
lAC6
1AB6*
1Bl2
IAD2 lAD2-A
IAD2-A
lBV2 1BX2
lX2-C
lAE4
1BY2
1 BY2-A
lAF4
1AJ4,lAM4,1T45F,
1 BY2-A
lAE4*,1T4*,lU4*
1C3
lAFS
lAHS,lARS,15S*
lC4
1K4,lA4*,lA4P*,lA4T*,
lAHS
1AFS,lARS,15S*
lB4*,lB4G*,lB4P*,
lAJ2
lB4T*, 32*, 34*,
9S1*
� May not work in all circuits.
� Parallel-filament circuits.
t Series circuit not requiring controlled warm-up time_
9
To R.eplace Use
To R.eplace Use
lCSG
lCSGT, lCSGT/G, lQSG, lF7GV
1F7G,1F7GH,1F7GT,
lQSGT,IQSGT/G,
lF7GY
1 TSGT*
lF7GY
1F7G,1F7GH,1F7GT,
lCSGT
lCSG, lCSGT/G, lQSG,
lF7GV
lCSGT/G
1QSGT, lQSGT/G, 1 TSGT* lCSG, lCSGT, lQSG,
lG3GT
lG3�GTA, lK3�A
lG3�GTA
lK3�A
1G3GT/1B3GT 1G3�GTA, 1K3�A
1QSGT,1QSGT/G,
lG4G
lG4GT, lG4GT/G, lE4G,
1 TSGT*
lE4GT
lC6
lA6*
lG4GT
lG4G, lG4GT/G, lE4G,
lC7G
lD7G*
lE4GT
lD4G
lD4GT
lG4GT/G 1G4G,1 G4GT,1E4G,
lD4GT
lD4G
lE4GT
lDSG
1DSGP, 1 DSGT,1ESG,
lGSG
lGSGT,1GSGT/G, lJSG,
�
1ESGP,1ESGT,1KSG*, lMSG*
lG5GT
lJSGT 1GSG,lGSGT/G, lJ5G,
lDSGP
1DSG,1D5GT,1ESG,
lJ5GT
1&.1
�
1E5GP, 1E5GT, 1 KSG*, lG5GT/G lGSG, lG5GT,1JSG,
�
lMSG*
1JSGT
...
J
an
1 DSGT
1DSG,1DSGT,1ESG, 1ESGP, 1 E5GT,1KSG*, lMSG*
lG6G lG6GT lG6GT/G
lG6GT,IG6GT/G lG6G,IG6GT/G lG6G, lG6GT
U
lD7G
lC7G*
lH2
...
lD8GT
lB8GT�
lH4G
lH4GT
lDG3
lDG3�A
lH4GT
lH4G
en
lDG3�A
lHS
1H5G, 1HSGT,GT/G
1&.1
lDNS
1US,1ASS*,1USSF*
lHSG
1HS,GT,GT/G
al
;:) t-
lDY4 1 DY4A
lDY4A lDY4
1 HSGT lH5GT/G
lH5, G, GT/G lHS,G,GT
1 E3
lH6G
lH6GT
Z
>
lE4G lE4Gr
lE4GT, lG4G, lG4GT, lG4GT/G
lE4G, lGSG, lGSGT,
lH6GT 1J3
1J3A
lH6G lG3�GTA, lK3�A lG3�GTA, lK3�A
1&.1
U
1&.1
lESG
lGSGT/G 1ESGP,1ESGT, lDSG,
lD5GP, 1DSGT,lKSG*,
1JSG 1JSGT
1JSGT,1G5G,1GSGT, 1 GSGT/G
1JSG, 1G5G,1GSGT,
lMSG*
1 GSGT/G
�
1ESGP
1ESG,1ESGT,1DSG,
1J6G
1J6GT, 1J6GX
1DSGP,lDSGT,lKSG*, 1J6GT
lJ6G,IJ6GX
lMSG*
lJ6GX
lJ6G, lJ6GT
1 ESGT
1ESG, 1ESGP,1DSG,
lK3
1G3-GTA, 1K3�A
1DSGP,1DSGT, lKSG*, lK3�A
lG3�GTA
lMSG*
lK4
lC4, lA4*, lA4P*, lA4T*,
lE7G
lE7GT
lB4*, lB4G*,lB4P*,
lE7GT
lE7G
1B4T*, 32*, 34*,9 S 1 *
lF4 lFSG
IlSG*
lKSG
lMSG, lDSG*, lDSGP*, 1DSGT*,1ESG*,
lF6
1ESGP*, 1E5GT*
lF7G
lF7GH, lF7GT, lF7GV,
lK7G
lF7GY
Il4
lAE4*
lF7GH
1F7G, 1F7GT,1F7GV,
IlSG
lFSG*
lF7GY
116
lU6*
lF7GT
lF7G, lF7GH, lF7GV,
llA4
IlA4E
lF7GY
IlA4E
llA4
� May not work in all circuits.
� Para l l el�filament circuits.
10
t Series circuit not requiring controlled warm-up time.
To Rep/ace Use
To Rep/ace Use
l LA6
l LC6
1 USSF
l ASS, 1 0NS", l US*
l LB4
l U6
l L6*
l LB6
lV
6Z3
l LCS
l LNS
l V2
1 LC6
l LA6
lW4
1 LOS
l X2
l BX2, l X2-C
1 LE3
l LF3
l X2A
l BX2, l X2-C
1 LF3
1 LE3
lX2B
1 BX2, l X2-C
l LGS
l X2-C
l BX2
l LH4
l Y2
1 LNS
1 LCS
l Z2
1 M3
l N3
2A3
2A3H
lMSG
l KSG, 1 0SG*, 1 0SGP*,
2A3H
2A3
1 0SGT*, l ESG*,
2AS
1 ESGP*, 1 ESGT*
2A6
l N3
1 M3
2A7
2A7S
�
l NSG
1 NSGT, 1 NSGT/G, 1 PSG,
2A75
2A7
l P5GT
2AF4
2AF4A, 2AF4B, 20Z4�,
;:11:
1 NSGT
l NSG, 1 NSGT/G, l PSG,
2T4�
rn
l N5GT/G
lPSGT 1 NSG, 1 NSGT, 1 PSG,
l P5GT
2AF4A 2AF4B 2AH2
2AF4B, 20Z4�, 2T4� 20Z4�
0
rn
::(
l N6G
l N6GT
2AS2
2AS2A
Z
l N6Gr
l N6G
2AS2A
Cl
l PSG
1 PSGT, 1 NSG, 1 NSGT,
2AV2
2BA2
---t
l NSGT/G
2AZ2
2BJ2A
C
l PSGT
1 P5G, 1 NSG, 1 NSGT,
2B3
CI' rn
1 NSGT/G
2B6
VI
l QSG
l QSGT, lQ5GT/G, l CSG, 2B7
2B7S
l C5GT, l CSGT/G,
2B75
2B7
1 TSGT*
2BA2
2AV2
r-
l Q5GT l Q5GT/G
l Q5G, l Q5GT/G, l CSG, l C5GT, l CSGT/G, l T5GT*
1 QSG, 1 QSGT, 1 CSG, 1 CSGT, 1 CSGT/G,
2BJ2 2BJ2A 2BN4 2 B N 4A 2BU2
2BJ2A
2 BN4A 2BN4
>-
t..,
rn
VVII
1 T5GT* lR4
2CN3A 2CN3B
2CN3B
�
l RS
1 RSSF*, 1 AQ5*
2CQ3
l RSSF l S2A 1 S4
l AQS, l RS*
2CW4 2CYS 20F4
20S4 2EAS, 2EVS
l SS
lAF5*, lAHS*, lARS*
20S4
2CW4
l SA6GT
20V4
1 SB6GT
20X4
1 T4
lAE4*, lAF4*, lAJ4*,
20Y4
20Y4A
l AM4*, 1 T4SF*
20Y4A
20Y4
1 T4SF
l AE4*, l AF4, l AJ4,
20Z4
2AF4B�
l AM4, 1 T4*
2ES
1 TSGT
l ASG, lASGT, lASGT/G, 2EAS
2 EVS
l CS*, l CSGT*, l CSGT/ 2EG4
G*, l QSG*, l QSGT/G* 2ENS
l U4
l AF4*
2ERS
2ESS, 2FQS, 2FQSA, 2FYS
l US
1 0N5, l ASS*, l USSF*
2ESS
2ERS*t
� May not work in all circuits.
.,.. Para l lel�fllament circuits.
t Series circuit not requi ring controlled warm-up time.
11
To R.eplace Use
To R.eplace Use
2EV5
2EAS
3AW2
3AW2A
2FHS
2E5S,2FQS,2FQSA,2GK5 3AW2A
2FQS
2FQSA, 2E5S, 2FY5*t,
3AW3
3A38, 3A3-C, 3CZ3A,
2GKS
3083, 30J3
2FQSA
2FQS,2E55,2FY5*t,2GK5 382
3A38, 3A3-C, 3CV3A,
2F55
2GUS
3CZ3A, 3083
2FV6
384
2FY5
2ERS,2FQ5,2FQ5A,
385
385GT, 3C5GT, 3Q5,
2GK5
3Q5G,3Q5GT,
2G5
3Q5GT/G
2GKS
2FQ5,2FQ5A
38SGT
385, 3C5GT, 3Q5, 3Q5G,
2GUS
2F5S
3QSGT,3QSGT/G
2GW5
387
2HA5
2HKS, 2HM5, 2HQ5
3BA6
3AU6,3BZ6�
2HK5
2HMS,2HQS,2HA5t
3BC5
3CE5, 3AU6�, 3CB6�,
�
2HM5
2HAS,2HK5,2HQ5
3CF6�, 30K6�
2HQS
2HA5,2HK5,2HM5
3BE6
3BY6,3C56
2HR8
3BF2
Ilol
U
2J2
3BH2
'"I'
25/45 2T4
45 2AF4�, 2AF4A�, 2AF4B�,
3BL2
3AT2-B, 3BL2A, 3BM2A, 3BN2A
>
20Z4�
3BL2A
3AT2-B, 3BM2A, 3BN2A
Ilol
('II
2V2
3C2
2V3G
3BM2 3BM2A
3AT2-B, 3BL2A, 3BM2A 3AT2-B, 3BL2A
2W3
2W3GT
3BN2
3AT2-B, 3BL2A, 3BM2A
V)
2W3GT
2W3
Ilol
a:I
2X3G
:;)
2Y2
2X2,2X2A
2Z2
2Z2/G84, G84
38N2A 3BN4 3BN4A 3BN6
3AT2-B, 3BL2A, 3BM2A 3BN4A 3BN4
2Z2/G84 2Z2,G84
Z
3A2
3A2A
3B52 3B52A
3B52-B, 3BT2-A, 3BW2 3B52-B, 3BT2-A, 3BW2
:>
3A2A
3B52-B
38T2-A
Ilol
3A3
U
Ilol
a::
3A3A
3A3B, 3A3-C, 3CU3A, 3CV3A, 30B3, 30J3
3A3B, 3A3-C, 3CU3A, 3CV3A, 30B3, 30J3
3BT2 3BT2-A 3BU8 3BU8A
3B52-B, 3BT2-A 3B52-B, 3BW2 3BU8A,3G58,3H58,3KF8 3BU8,3G5B,3H5B,3KF8
�
3A3B
3A3-C, 3CV3A, 30B3, 30J3
38W2 3BX6
3B52-B, 3BT2-A 3BY7
3A3-C
30J3
3BY6
3BE6, 3C56
3A4
3BY7
3BX6
3A5
3BZ6
3BA6�, 3CB6�, 3CE6�,
3ABG
3ABGT
3CF6�,30K6�
3A8GT
3ABG
3C2
3AF4A
3AF4B,30Z4�
3C4
3ES, 3V4*
3AF4B
30Z4�
3C5GT
3B5,GT,3Q5,G,GT,
3AJB
GT/G
3ALS
3C6
XXB
3AT2
3AT2A, 3BL2A, 3BM2A, 3CA3
3CA3A
3BN2A
3CA3A
3AT2A
3AT2-B
3CB6
3CF6,30K6,3AU6�,
3AT2-B
3BC5�,3BZ6�,3EC5�
3AU6
3BA6, 3BCS�,3CB6�,
3CE5
3BC5,3AU6�,3BZ6�,
3CE5�, 3CF6�
3CB6�, 3CF6�, 30K6�
3AV6
� M.y not work in .11 circuits.
* Parallel-filament circuits.
12
t Series circuit not requiring controlled warm-up time.
To ReplGce Use
To Replace Use
3CF6
3CB6, 30K6, 3AU6�,
3GWS
3BCS�,3BZ6�,3CES�
3HAS
3HKS,3HMS,3HQS
3CN3
3CN3A, 3CN3B
3HKS
3HAS,3HMS,3HQS
3CN3A
3CN3, 3CN3B
3HMS
3HAS, 3HKS, 3HQS
3CN3B
3HM6
3HT6,3JC6,A,3J06
3CS6
3BE6,3BY6
3HQS
3HAS,3HKS,3HMS
3CU3
3A3-C, 3CU3A, 3CV3A,
3HS8
3BU8,3BU8A,3GS8, 3KF8
30B3
3HT6
3HM6,3JC6,A,3J06
3CU3A
3A3-C, 3CV3A, 30B3
3JC6
3HM6,3HT6,3JC6A,3J06
3CV3
3A3-C, 3CU3A, 3CV3A,
3JC6A
3HM6,3HT6,3JC6,3J06
3CZ3A, 30B3, 30J3
3J06
3HM6,3HT6,3JC6,A
3CV3A
3A3-C, 3CZ3A
3KF8
3BU8,3BU8A,3GS8,3HS8
3CX3
30F3A
3KT6
3CY3
30B3, 30J3
3lE4
3lF4�, 306*
3CYS 3CZ3
3EAS,3EVS 3A3-C, 3CZ3A
3lF4
3lE4�,306*
3Q4
3S4�,3S4SF*�,3W4*�,
�
3CZ3A
3A3-C
3Z4*�
306 30A3 30B3
3lE4*,3lF4* 30J3
3QS
3QSG,3QSGT, 3QSGT/G,
::II'
3BS, 3BSGT, 3CSGT
lit
n
3QSG
3QS, 3QSGT, 3QSGT /G,
lit
30C3 30F3 30F3A 30G4 30H3 30J3 30K6
30F3-A
30B3 3CB6, 3CF6, 3BCS�,
3BZ6�, 3CES�
3QSGT 3QSGT/G
3BS, 3BSGT, 3CSGT 3QS, 3Q5G,3QSGT/G,
3BS, 3BSGT, 3CSGT 3QS, 3QSG, 3QSGT, 3BS,
Z t;)
3BSGT, 3CSGT
3S4
3S4SF*,3Q4�,3W4*,3Z4*
c:
alii
3S4SF
3W4,3Z4,3S4*,3Q4*�
lit
3V4
3C4*,3ES*
'"
30R3
3W4
3S4SF,3Z4,3S4*,3Q4*�
30S3 30T6 30T6A 30X4 30Y4 30Y4A 30Z4
30R3 30T6A 30T6
30Y4A 30Y4 3AF4B�
3Z4
3S4SF,3W4,3S4*,3Q4*�
W
4A6
4A6G
n
4A6G 4AU6
4A6 4BA6,4BCS�,4BZ6�,
4CB6�, 4CES�, 40E6�,
"1'1
t
alii
4AV6
4CF6�
C>D<
3ES
3C4,3V4*
3E6
4BA6 4BCS
4AU6,4BZ6� 4CES, 4AU6�,4CB6�,
�
3EAS
3EVS
40E6�,40K6�,4CF6�
3EH7
3EJ7,3HM6�, 3HT6�,
4BC8
4BQ7A,4BS8,4BX8,
3JC6�,3JC6A�,3J06�
4BZ7,4BZ8,SBK7A
3EJ7
3EH7, 3HM6�, 3HT6�,
4BE6
4CS6
3JC6�,3JC6A�,3JD6� 4BL8
SEA8,SU8,SCQ8�
3ERS
3FQS,3FQSA, 3FYS
4BN4
3ESS
4BN6
3EVS
3EAS
4BQ7A
4BC8, 4BS8, 4BX8, 4BZ7,
3FHS
3ESS,3FQS,3FQSA,3GKS
4BZ8, SBK7A
3FQS
3FQSA,3ESS,3GKS
4B58
4BC8,4BQ7A,4BX8,
3FQSA
3FQS,3GKS
4BZ7,4BZ8,SBK7A
3FSS
3GU5
4BU8
4GS8, 4HS8, 4KE8,
3FYS
3ER5
4MK8
3GKS
3FQS,3FQSA
4BX8
4BC8, 4BQ7A, 4B58, 4BZ7,
3GSB
3BU8,3BU8A,3HS8,3KF8
4BZ8, SBK7A
3GUS
3FSS
� May not work in a l l circuits.
* Parallel-filament circuits.
t Series circuit not requiring controlled warm-up time.
n
To Replace Use
To Replace Use
4BZ6
4JH6,4AU6�, 4BA6�,
4JK6
4EW6,4JL6
4CB6�,40E6�,40K6�, 4JL6
4EW6,4JK6
4CF6�
4JW8
SJW8
4BZ7
4BC8,4BQ7A,4B58,4BX8, 4KE8
4BZ8, SBK7A
4KF8
4BU8, 4G58, 4H58,
4BZ8
4BC8,4BQ7A,4B58,4BX8,
4MK8
4BZ7, SBK7A
4KN8
4CB6
4CF6,40E6,4DK6, 4AU6�, 4KT6
4BCS�,4BZ6�,4CES�
4LJ8
4CES
4BCS, 4AU6�, 4BZ6�,
4LU6
4CB6�,40E6�,40K6�, 4MK8
4BU8, 4G58, 4H58, 4KF8
4CF6�
4S
2S/4S
4CF6
4CB6, 40K6, 4AU6�,
SA6
4BCS�, 4BZ6�, 4CES�
SAF4A
4CM4
�
4CS6
4BE6
5AM8 SAN8
4CX7
SAQS
CO aIl-l
4CYS 40E6
4CB6,40K6,4AU6�,
SAR4 SAS4
SAS4A,SDB4,SU4GB,
11\
4BCS�, 4BZ6�, 4CES�
SV3,SV3A
J
40K6
4CB6, 4CF6,4DE6,4BCS�, SAS4A
SAS4,SOB4,SU4GB,
N all "II'
40T6
4BZ6�,4CES� 40T6A
40T6A
40T6
SAS8 SAT4
SV3,SV3A
4EH7
4EJ7, 4HM6�, 4HT6�,
SAT8
SBE8�, SBRB�, SCGB�,
I/)
&101
all
4EJ7
::�
I-
4ESB
4JC6�, 4JC6A�, 4J06� 4EH7, 4HM6�, 4HT6�,
4JC6�,4JC6A�,4JD6� 4KN8
SAU4 SAV8
SCLB�,SCL8A�,SDHB�, SFG7�, SFVB� SV3,SV3A SBB�
"
4EW6
4GM6
SAW4
SAS4, SAS4A, SAU4,
Z
4FS7
4HG8
SOB4,SR4G,SR4GTY,
4GJ7 4GKS
4GX7
&101
U
4GM6
4EW6
SR4GY, SR4GYA, SR4GYB, SU4GA, SU4GB, SV3,SV3A
&101
4GS7
c.::
4GSB
4BUB, 4HSB, 4KFB, 4MK8
SAX4GT
SAR4, SAS4, SAS4A, SR4G, SR4GTY, SR4GY,
�
4GWS 4GX7
4GJ7
SR4GYA, SR4GYB, ST4, SU4G,SU4GA,SU4GB,
4GZS
SV4G, SV4GA,
4HAS
4HKSt,4HMS,4HQS
SV4GY
4HA7
5AZ3
4HC7
SAZ4
4HGB
SBB
SAVB�
4HKS
4HAS, 4HMS, 4HQS
5BC3
SBC3A
4HMS
4HAS,4HQS,4HKSt
SBC3A
SBC3
4HM6
4HT6, 4JC6, 4JC6A, 4J06 SBEB
SBRB�, SCLB�, SCL8A�,
4HQS
4HAS, 4HMS, 4HKSt
SFG7�,SFVB�
4HR8
SBK7A
4BCB, 4BQ7A, 4BSB,
4HSS
4BUB, 4GSB, 4KFB, 4MK8
4BXB,4BZ7,4BZB
4HT6
4HM6,4JC6,A,4J06
SBQ7A
SB5B, SBZ7
4JC6
4HM6,4HT6,4JC6A,4J06 SBRB
SFVB,SBE8�,SCL8�,
4JC6A
4HM6,4HT6,4JC6,4J06
SCLBA�
4J06
4HM6, 4HT6, 4JC6, 4JC6A SBSS
SBQ7A,SBZ7
4JH6
4BZ6
SBT8
� May nol work in .11 circuits.
* Para llel-filament circuits.
14
t Series circuit not requiring controlled warm-up time.
To R.eplace Use
To R.eplace Use
5BWS
5MQS
5CQS�, 5GHS�
5BZ7
5BQ7A,5BSS
5R4G
5R4GTY,5R4GY,5R4GYA,
5CG4
5AR4,5V4G,5V4GA,
5R4GYB
5V4GY,5Z4,5Z4G,
5R4GTY
5R4G,GY, GYA,GYB
5Z4GT,5Z4GT/G,
5R4GY
5R4G,GTY,GYA,GYB
5Z4MG
5R4GYA
5R4G, GTY, GY, GYB
5CGS
5FG7,5ATS�,5BES�,
5R4GYB
5R4G, GTY, GY, GYA
5BRS�,5ClS�,5ClSA�, 5T4
5AR4, 5R4G, GTY, GY,
5FVS�
GYA,GYB
5ClS
5ClSA,5BES�,5BRS�,
5TS
5FVS�
5U4G
5U4GA, 5U4GB, 5AR4,
5ClSA
5ClS,5BES�,5BRS�,
5AS4,5AS4A,5AU4,
5FVS�
50B4, 5R4G, 5R4GTY,
5CM6
5R4GY, 5R4GYA,
5CMS
5CRS�
5R4GYB,5T4,5V3,5V3A
�
5CQS
5EAS�, 5US�, 5MQS�
5U4GA
5U4GB, 5AS4, 5AS4A,
5CRS 5CU4 5CZ5 50B4 50HS
5CMS�,5KZS�
5AU4,50B4,5R4G,GTY,
;IIJ
5R4GY,GYA,GYB,
rn
5V3, A
n
5AS4,5AS4A,5U4GB
5U4GB
5AS4,A,5AU4,50B4,
rn
5BRS�,5ClS�,5ClSA�,
5V3,A
50J4
5FG7�,5FVS� 50N4
5US
5EAS,5GHS,A,5GQS�
Z
5U9
50N4
5V3
5V3A,5AU4
-I
5EAS
5GHS,A,5US,5GQS�
5V3A
c:
5EHS 5ESS
5XS�
5V4G
5V4GA,5V4GY,5AR4
alii
5V4GA
5V4G,5V4GY,5AR4
rn &II
5EUS
5V4GY
5V4G,5V4GA,5AR4
5EW6 5FG7
5GM6 5BES�, 5BRS�
5V6GT 5V9
'"
alii
5FVS
5BR8, 5BE8�, 5Cl8L
5W4
5W4G, 5W4GT, 5W4GT/G,
5GH8 5GHSA
5ClSA�,50HS�
5GH8A, 5EAS,5U8,5GQ8� 5EA8, 5GHS, 5GQS�,
5MQS�
5AR4, 5CG4, 5R4G, 5R4GTY,5R4GY,
f'"
5R4GYA,5R4GYB,5U,
5V4G,5V4GA,5V4GY,
01lio
5GJ7 5GM6
5GX7 SEW6
SY3G, SY3GA, SY3GT,
SY3GT/G, SZ4,5Z4G,
-I
5GS7 SGX6
SU8� SHZ6
SZ4GT, SZ4GT/G,
5Z4MG
�
SGX7
SGJ7
SW4G
SW4,SW4GT,SW4GT/G,
SHA7
SAR4, SCG4, SR4G,
SHB7
SR4GTY,SR4GY,
SHC7
SR4GYA,5R4GYB,ST4,
SHGS
SV4G, SV4GA, SV4GY,
SHZ6
5GX6
5Y3G, 5Y3GA, 5Y3GT,
5J6
5Y3GT/G,5Z4,5Z4G,
5JK6
5EW6, 5Jl6�
5Z4GT,5Z4GT/G,
5Jl6
5EW6, SJK6�
SZ4MG
5JW8
4JWS
5W4GT
SW4,SW4G,SW4GT/G,
SK08
SAR4, 5CG4, SR4G,
SKE8
SR4GTY, SR4GY,
SKZ8
SCRS�
SR4GYA,SR4GYB,ST4,
SUS
SGS7t�
SV4G,SV4GA,SV4GY,
5MBS
SY3G, 5Y3GA, SY3GT,
� May not work in a l l circuits.
* Parallel-filament circuits.
t Series circuit not requiring controlled warm-up time_
15
To R.eplace Use
To R.eplace Use
5W4GT (cont) 5Y3GT/G,5Z4,5Z4G,
5Z4G
5Z4, 5Z4GT, 5Z4GT/G,
5Z4GT, 5Z4GT /G,
5Z4MG, 5AR4, 5CG4,
5Z4MG
5V4G,5V4GA,5V4GY
5W4GT/G 5W4,5W4G,5W4GT,
5Z4GT
5Z4,5Z4G,5Z4GT/G,
5AR4,5CG4,5R4G,
5Z4MG,5AR4,5CG4,
5R4GTY,5R4GY,
5V4G,5V4GA,5V4GY
5R4GYA,5R4GYB,5T4, 5Z4GT/G 5Z4,5Z4G,5Z4GT,5Z4MG,
5V4G, 5V4GA,5V4GY,
5AR4, 5CG4, 5V4G,
5Y3G, 5Y3GA, 5Y3GT,
5V4GA,5V4GY
5Y3GT/G, 5Z4, 5Z4G,
5Z4MG
5Z4,5Z4G,5Z4GT,
5Z4GT,5Z4GT/G,
5Z4GT /G,5AR4, 5CG4,
5Z4MG
5V4GA,5V4GY
5X3
13,SO,S3V,SS
6A3
�
5X4G
5X4GA
6A4
6A4LA�
5X4GA
5X4G
6A4LA
6A4�
5XS
5EHS�
6A5
'"
5X9
U
5Y3G
5Y3GA,5Y3GT,5Y3GT/G, 5AR4,5AX4GT,5CG4,
6A5G 6A6 6A6X
J,
...
5R4G,5R4GTY,5R4GY, 5R4GYA,5R4GYB,5T4,
6A7 6A7S
t-
5V4,5V4GA,5V4GY,
6AS
'"
5Y3GA
5Z4,5Z4G,5Z4GT, 5Z4GT/G,5Z4MG 5Y3G,5Y3GT,5Y3GT/G,
6ASG
5AR4, 5AX4GT, 5CG4,
6A5G 6A5 6A6X. 6A6 6A7S 6A7 6ASG, 6ASGT, 6ASGTX,
6ASMG,60S*, 60SG* 6AS,6ASGT,6ASGTX, 6ASMG,60S*,
5R4G,5R4GTY,5R4GY,
60SG*
IwI)
5R4GYA,5R4GYB,5T4, 6ASGT
6AS,6ASG,6ASGTX,
III
5V4,5V4GA,5V4GY,
6ASMG,60S*,
5Z4, 5Z4G, 5Z4GT,
60SG*
t-
5Z4GT/G,5Z4MG
6ASGTX
6AS,6ASG,6ASGT,
C)
5Y3GT
5Y3G,5Y3GA, 5Y3GT/G,
Z
5AR4,5AX4GT,5CG4,
6ASMG,60S*, 60SG*
:;
5R4G,5R4GTY,5R4GY, 6ASMG
6AS,6ASG,6ASGT,
w U w a.::
5R4GYA,5R4GYB,5T4, 5V4, 5V4GA, 5V4GY, 5Z4,5Z4G,5Z4GT, 5Z4GT/G,5Z4MG
6AB4 6AB5
6ASGTX, 60S*, 60SG*
6N5,6N5G,6AB5/6N5
�
5Y3GT/G
5Y3G, 5Y3GA, 5Y3GT, 5AR4, 5AX4GT, 5CG4,
6AB5/6N5 6AB5,6N5,6N5G
6AB6G
6N6*, 6N6G*, 6N6MG*
5R4G,5R4GTY,5R4GY, 6AB7
6AB7Y,6AC7,6AC7A,
5R4GYA,5R4GYB, 5T4,
6AC7Y, 6AJ7, 6SG7*�,
5V4G,5V4GA,5V4GY,
6SG7GT*�, 6SG7Y*�,
5Z4,5Z4G,5Z4GT,
6SH7*�, 6SH7GT*
5Z4GT/G,
6AB7Y
6AB7,6AC7,6AC7A,
5Z4MG
6AC7Y, 6AJ7, 6SG7*�,
5Y4G
5Y4GA,5Y4GT
6SG7GT*�, 6SG7Y*�,
5Y4GA
5Y4G,5Y4GT
6SH7*�,6SH7GT*
5Y4GT
5Y4G,5Y4GA,
6AB8
5Z3
S3
6AB9
5Z4
5Z4G,5Z4GT,5Z4GT/G,
6AC5
6AC5G,6AC5GT,
5Z4MG,5AR4,5CG4,
6AC5GT/G
5V4G, 5V4GA,
6AC5G
6AC5,6AC5GT,
5V4GY
6AC5GT/G
� May not work in all circuits.
* Parallel�mament circuits.
16
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6ACSGT
6ACS, 6ACSG,
6DE6�, 6CYS*�, 6EAS*�,
6ACSGT/G
6EVS*�
6ACSGT/G 6ACS, 6ACSG, 6ACSGT
6AG6G
6M6G*
6AC6G
6AC6GT
6AG7
6AG7Y, 6AK7
6AC6GT
6AC6G
6AG7Y
6AG7, 6AK7
6AC7
6AC7A, 6AC7Y, 6AB7,
6AG9
6AL9
6AB7Y, 6AJ7, 6SG7*�,
6AG 1 0
6SG7GT*�, 6SG7Y*�,
6AG l l
6SH7*�, 6SH7GT*�
6AH4GT
6AC7A
6AC7, 6AC7Y, 6AB7,
6AHS
6AHSG
6AB7Y, 6AJ7, 6SG7*�,
6AHSG
6AHS
6SG7GT*�, 6SG7Y*�,
6AH6
6AH6V
6SH7*�, 6SH7GT*�
6AH6V
6AH6
6AC7Y
6ACl, 6AC7A, 6AB7,
6AH7GT
6AB7Y, 6AJ7, 6SG7*�
6AH9
�
6SG7GT*�, 6SG7Y*�,
6AJ4
6AM4�, 6CR4*�
6AC9 6AC 1 0
6SH7*�, 6SH7GT*� 6Ul 0�
6AJS 6AJ7
::a
6AB7, 6AB7Y, 6ACl,
'"
n
6AC7A, 6AClY, 6SG7*�,
'"
6ADSG
6ADSGT
6SG7GT*�, 6SGlY*�,
:(
6ADSGT 6AD6G 6AD7G 6ADS 6AD 1 0 6AD1 0-A 6AES
6ADSG 6AF6G, 6AF6GT
6DC8, 6NS 6AD l O-A, 6T1 0�
6AESG, 6AESGT,
6AJS 6AKS
6SH7*�, 6SH7GT*� 6AGS*, 6BCS*, 6CES*,
z c::\
6CYS*�, 6EAS*�, 6EVS*�
-i C m
6AK6
'"
6AK7
6AG7, 6AG7Y
VI
6AESGT/G, 6AFSG
6AKS
6TS, 6T8A
6AESG
6AES, 6AESGT,
6AK9
0-
6AESGT/G, 6AFSG
6A K 1 0
>
6AESGT
6AES, 6AESG, 6AESGT/G, 6AFSG
6AL3 6ALS
6EBS
n VI C\
6AESGT/G 6AES, 6AESG, 6AESGT, 6AFSG
6AL6 6AL6G
6AL6G 6AL6
0-I -i
6AE6
6AE6G
6AL7
6AL7GT
>
6AE6G 6AE7G
6AE6 6AE7GT
6AL7GT 6AL9
6AL7 6AG9
100-
6AE7GT 6AES
6AE7G
6AL l l 6AM4
6AJ4�
�
6AF3
6BR3, 6AL3*
6AMS
6AF4
6AF4A, 6AN4�, 6T4�
6AM6
6AF4A
6AF4, 6AN4�, 6DZ4�, 6T4� 6AMS
6AM8A, 6HJS
6AFSG
6AES, 6AESG, 6AE5GT,
6AMSA
6AMS*t, 6HJS
6AESGT/G
6AN4
6AF4�, 6AF4A�, 6T4�
6AF6G
6AF6GT, 6AD6G
6ANS
6AF6GT
6AF6G, 6AD6G
6AN6
6AF7G
6CD7*
6AN7
6AF l O
6ANS
6AN8A
6AF l l
6ASl l , 6BDl l
6ANSA
6ANS*t
6AG5
6BC5, 6CE5, 6AKS*,
6AQ4
6AU6�, 6AU6A�,
6AQS
6AQSA, 6BMS, 6HGS
6AW6�, 6CB6�,
6AQSA
6HG5, 6AG5*t, 6BMS*t
6CB6A�, 6CF6�, 6DC6�, 6AQ6
6AT6*, 6AV6*, 6BK6*,
6BT6*
� May not work in all circuits.
* Parallel-filament circuits.
t Series circuit not requiring controlled warm-up time.
17
To Replace Use
To Replace Use
6AQ7GT
6AW6
6C86, 6C86A, 6CF6, 60C6,
6AQ8
60T8*
60E6, 6AG5�, 6AU6�,
6AR5
6AU6A�, 6BC5�, 6BH6*,
6AR6
6AR6G
6CE5�
6AR6G
6AR6
6AW7GT
6AR7GT
6AW8
6AW8A, 6AU8, A, 6BA8,
6AR8
A, 6JV8, 6KS8. 6lF8,
6AR l l
6EB8*, 6EH8*�, 6X8*�,
6AS4GT
60M4, 60M4A, 60Q4,
6X8A*�
60T4, 6CQ4*, 60E4*
6AW8A
6AW8, 6AU8, A, 6BA8, A,
6AS5
6CA5*
6JV8, 6KS8, 6lF8,
6AS6
60B6*
6EB8*, 6EH8*�, 6X8*�,
6AS7G
6AS7GA, 6AS7GT, 6080
6X8A*�
6AS7GA
6A57G, 6A57GT, 6080
6AX3
�
6AS7GT
6AS7G, 6A57GA, 6080
6AX4GT
6AX4GTA, 6AX4GTB,
6A58
6A54GT, 60A4, 60A4A,
V)
6AS l l
6AFl l , 6B01 1
60M4, 60M4A, 60Q4,
to-.
'"I
6AT6 6AT8
t-
CJ
6AV6, 6BK6, 6BT6, 6AQ6* 6AT8A, 6BE8�, A�, 6BR8�,
A�, 6CG8�, A�, 6CL8�, A�, 6FG7�, 6FV8�, A�
6AX4GTA
60T4, 6AU4GT*, 6AU4GTA*, 6CQ4*, 60E4* 6AX4GTB, 60A4, 60A4A,
to-.
6AT8A
6AT8*t, 6BE8A�, 6BR8A�,
60M4, 60M4A, 60Q4,
01
�
'"
6CG8A�, 6CL8�, 6Cl8A�, 6FG7�, 6FV8�,
60T4, 6AU4GT*, 6AU4GTA*, 6CQ4*,
6FV8A�
60E4*
6AU4GT
6AU4GTA, 6CQ4*,
6AX4GTB 60M4A, 6CQ4*, 6DA4A*t,
Vw )
60A4A*, 60E4*, 60M4*,
60E4*, 60M4*t,
60M4A*, 60Q4*,
60Q4*t, 60T4*t
:::l
60T4*
t-
6AU4GTA 60M4A*, 60T4*
6AX5GT 6AX6G
CJ
6AU5GT
6FW5, 6AV5GA*,
Z
6AV5GT*
>
6AU6
6AU6A, 6BA6, 7543,
6AX7 6AX8
6AU7�, 6GU7*, 7AU7� 6EA8, 6GH8, A, 6lM8,
6U8, 6U8A, 6CQ8�,
w
6AW6�, 6AG5�, 6BC5�,
u w "
6CB6�, 6CB6A�, 6CE5�, 6CF6�, 60E6�, 60K6�
6AY3
6AU6A
6AU6*t, 7543*t, 6BA6*t,
6GJ8� 6AY3A, 8, 6BA3, 6B53, A,
6CK3, 6Cl3, 60W4, A, B, 6BH3*, A*
�
6CB6A�, 6CE5�
6AU7
7AUl, 6AX7�
6AY3A
6AY3, A, 6BA3, 6B53, A, 6CK3, 6Cl3, 60W4, A,
6AU8
6AU8A, 6AW8, 6AW8A,
B, 6BH3*, A*
6BA8, 6BA8A, 6BH8,
6AY3B
6AY3, A, 6BA3, 6B53, A,
6CX8*, 6EH8*�, 6X8*,
6CK3, 6Cl3, 60W4, A,
6X8A*
B, 6BH3*, A*
6AU8A
6AU8, 6AWB, 6AW8A,
6AY l l
6BA8, 6BA8A, 6BH8,
6AZ8
6CX8*, 6EH8*�, 6X8*, 6B3
6V3*, 6V3A*
6X8A*
6B4G
6AV4
6BX4*
6B5
6AV5GA
6AV5GT, 6FW5, 6AU5GT* 6B6
6BG6, 6Q7, 6Q7G,
6AV5GT
6AV5GA, 6FW5, 6AU5GT*
6Q7GT, 6Q7MG, 6T7G*
6AV6
6AT6, 6BK6, 6BT6, 6AQ6* 6B6G
6B6, 6Q7, 6Q7G,
6AV l l
6Kl l �, 6Ql l �
6Q7GT, 6Q7MG, 6T7G*
6B7
6BS7
6B75
687
� May not work in all circuits.
* Paral lel-filament circuits.
18
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6B8
6B8G, 6B8GT
6BH3A
6BH3, 6DW4A*, B*,
6B8G
6B8, 6B8GT
6CJ3*, 6CK3*, 6Cl3*
6B8GT
6B8, 6BBG
6BH5
6B1 0
6BH6
6AW6*, 6CB6*, 6CB6A*,
6BA3
6AY3, A, B, 6B53, A,
6CF6*, 6DC6*
6CK3, 6Cl3, 6DW4, A,
6BH8
6AU8, 6AU8A, 6AW8,
B, 6BH3*, A*
6AW8A, 6BA8, 6BA8A
6BA6
6AU6, 6AU6A, 6BD6,
6BH 1 1
6CG6, 7543, 6BZ6�
6BJ3
6AX3
6BA7
6BJ5
6BA8
6BA8A, 6AU8, 6AU8A,
6BJ6
6BJ6A
6AW8, 6AW8A, 6BH8
6BJ6A
6BJ6
6BA8A
6BA8, 6AU8, 6AU8A,
6BJ7
6AW8, 6AW8A, 6BH8
6BJ8
6BN8
6BA1 1
6BK4
6BK4C, 6El4, 6El4-A,
6BC4
6EN4
�
6BC5
6AG5, 6CE5, 6AK5*,
6BK4A
6BK4C, 6El4, 6El4-A,
6AU6�, 6AU6A�,
6EN4
"
6AW6�, 6CB6�, 6CB6A�, 6BK4B
6BK4C, 6El4, 6El4-A,
m
6CF6, 6DC6�, 6DE6�,
6EN4
n
m
6D K6�, 6CY5*�, 6EA5*�, 6EV5*�
6BK4C 6BK5
6El4, 6El4-A, 6EN4
<
6BC7 6BC8
6BQ7, 6BQ7A, 6B58,
6BK6
6AT6, 6AV6, 6BT6, 6AQ6*
Z
68K7
6BK7A, 6BK7B, 6BC8*,
G')
6BX8, 6BZ7, 6BZ8, 6HK8, X1 55, 6BK7*,
6BQ7*, 6BQ7A*, 6B58*,
-4
6BX8*, 6BZ7*, 6BZ8*,
C
6BK7A*, 6BK7B*
6HK8*, X1SS*
= m
6BD4
6BD4A, 6BK4*�, 6BK4A*�, 6BK7A
6BK7, 6BK7B, 6BC8*,
'"
6BK4B*�
6BQ7*, 6BQ7A*, 6B58*,
6BD4A 6BD5GT
6BD6 6BD7 6BD 1 1 6BE3
6BK4*�, A*�, B*� 6AU5GT*, 6AV5GA*,
6AVSGT*, 6FW5* 6BA6, 6CG6
6AF1 1 6BE3A
6BX8*, 6BZ7*, 6BZ8*, 6HK8*, X155
0-
=
6BK7B
6BK7*, 6BK7A*, 6BC8*, 6BQ7*, 6BQ7A*, 6B58*,
00 0I -
6BX8*, 6BZ7*, 6BZ8*, 6HK8*, X1 SS*
=
10
'"
6BK8
6BE3A 6BE6
6BE3 6BY6, 6CS6
6BK 1 1
6K1 1 �, 6Q 1 1 �
�
6Bl4
6AU4GTA*, 6CQ4*,
6BE7
6DM4A*, 6DT4*
6BE8
6BE8A, 6BR8�, 6BR8A�,
6Bl7GT
6Bl7GTA, 6BX7GT, 6DN7
6Cl8�, 6Cl8A�, 6FG7�, 6Bl7GTA 6BL7GT, 6BX7GT, 6DN7
6FV8�, 6FV8A�
6Bl8
6lN8
6BE8A
6BE8*t, 6BR8A�, 6Cl8�,
6BM5
6AQ5, 6AQ5A, 6Dl5*,
6Cl8A�, 6FG7�, 6FV8�,
6D55*
6FV8A�
6BM8
6BF5
6BN4
6BN4A
6BF6
6BU6
6BN4A
6BN4
6BF8
6BN5
6BF1 1
6BN6
6BG6G
6BG6GA
6BN7
6BG6GA
6BG6G
6BNB
6BJ8�
6BH3
6BH3A, 6DW4A*, B*,
6BN 1 1
6CJ3*, 6CK3*, 6Cl3*
6BQ5
7 1 89, 7 1 B9A
� May not work in all circuits.
* Para l lel�flIament circuits.
t Series circuit not requiring controlled warm-up time.
19
To Replace Use
To Replace Use
6BQ6G
6BQ6GA, 6BQ6GT,
6BT4
6BQ6GTA, 6BQ6GTB,
6BT6
6AT6, 6AV6, 6BK6,
6BQ6GTB/6CU6, 6CU6,
6AQ6*
60Q6, 60Q6A, 60Q6B, 6BT8
6FH6, 6GW6
6BU4
6BQ6GA
6BQ6G, 6BQ6GT,
6BU5
6BQ6GTA, 6BQ6GTB,
6BU6
6BF6
6BQ6GTB/6CU6, 6CU6, 6BU8
6BU8A, 6GS8, 6HS8, 6KF8
60Q6, 60Q6A, 60Q6B, 6BU8A
6BU8, 6GS8, 6HS8, 6KF8
6FH6, 6GW6
6BV7
6BQ6GT
6BQ6G, 6BQ6GA,
6BV8
6BQ6GTA, 6BQ6GTB,
6BV l l
6BQ6GTB/6CU6, 6CU6, 6BW3
6AX3, 6BE3, 6BE3A
60Q6, 60Q6B, 6FH6,
6BW4
�
6BQ6GTA
6GW6
6BW6
6BQ6G, 6BQ6GA, 6BQ6GT, 6BW7
6BX6, 6El7, 6HM6�
'"
11'1
6BQ6GTB, 6BQ6GTB/ 6CU6, 6CU6, 60Q6,
6BW8 6BWl l
U -0
J,
6BQ6GTB
60Q6A, 60Q6B, 6FH6, 6GW6 6BQ6GTB/6CU6, 6CU6,
6BX4 6BX6
6AV4* 6BW7, 6BY7, 6El7,
6EC7*
-0 0I:I1Q
60Q6, A, B, 6FH6, 6GW6
6BX7GT 6BX8
6Bl7GT, 6Bl7GTA, 60N7 6BC8, 6BQ7, 6BQ7A,
-0
6BQ6GTBj
6BS8, 6Bl7, 6Bl8,
6CU6
6BQ6GTB, 6CU6, 60Q6,
6HK8, X 1 55, 6BK7*,
11'1 11.1
6BQ7
A, B, 6FH6, 6GW6 6BQ7A, 6BC8, 6BS8,
6BY5G
6BK7A*, 6BK7B* 6BY5GA
m ;:)
I-
'"
Z
:;
6BQ7A
6BX8, 6Bl7, 6Bl8, 6HK8, X 1 55, 6BK7*, 6BK7A*, 6BK7B*
6BQ7, 6BC8, 6BS8, 6BX8, 6Bl7, 6Bl8, 6HK8, X1 55, 6BK7*, 6BK7A*,
6BY5GA 6BY6 6BY7 6BY8 6BYl l 6Bl3
6BY5G 6BE6, 6C56 6BX6, 6EC7*
6BE3, 6BE3A, 6C03*,
11.1
U
11.1
6BR3
a:
6BR5
6BR7
6BK7B* 6Al3* 60A5
6Bl6 6Bl7
6CE3* 60C6, 6HQ6, 6JH6,
6BA6� 6BC8, 6BQ7, 6BQ7A ,
�
6BR8
6BR8A, 6FV8, 6FV8A, 6JN8, 6BE8�, 6BE8A�,
6858, 6BX8, 6Bl8, 6HK8, X 1 55, 6BK7*,
6Cl8�, 6Cl8A�
6BK7A*, 6BK7B*
6BR8A
6FV8, 6FV8A, 6JN8,
6Bl8
6BC8, 6BQ7, 6BQ7A,
6BR8*t, 6BE8A�,
6BS8, 6BX8, 6Bl7,
6Cl8�, 6Cl8A�
6HK8, X 1 55, 6BK7*,
6BS3
6B53A, 6CK3, 6Cl3,
6BK7A*, 6BK7B*
6DW4, A, B
6C4
6BS3A
6B53, 6CK3, 6Cl3,
6C5
6C5G, 6C5GT, 6C5GT/G,
6DW4, A, B
6C5MG, 6J5, 6J5G,
6BS5
6J5GT, 6J5GT/G,
6BS7
6J5GTX, 6J5GX,
6B58
6BC8, 6BQ7, 6BQ7A,
6J5MG, 6l5G
6BX8, 6Bl7, 6Bl8,
6C5G
6C5, 6C5GT, 6C5GTjG,
6HK8, X 1 55, 6BK7*,
6C5MG, 6J5, 6J5G,
6BK7A*, 6BK7B*
6J5GT, 6J5GT/G,
� May not work in a l l circuits.
* Parallel�filament circuits.
20
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6C5G (cont) 6J5GTX, 6J5GX,
6CGB
6CGBA, 6FG7, 6ATB�,
6J5MG, 6L5G
6ATBA�, 6BEB�,
6C5GT
6C5, 6C5G, 6C5GT/G,
6BEBA�, 6BRB�,
6C5MG, 6J5, 6J5G,
6BRBA�, 6FVB�, 6FVBA�
6J5GT, 6J5GT/G,
6CG8A
6FG7, 6CG8*t, 6AT8A�,
6J5GTX, 6J5GX,
6BE8A�, 6BR8A�,
6J5MG, 6L5G
6FV8�, 6FV8A�
6C5GT/G 6C5, 6C5G, 6C5GT,
6CH3
6CJ3
6C5MG, 6J5, 6J5G,
6CH6
6J5GT, 6J5GT/G,
6CH7
6CX7
6J5GTX, 6J5GX,
6CHB
6CUB�
6J5MG, 6L5G
6CJ3
6CH3
6C5MG
6C5, 6C5G, 6C5GT,
6CJ5
6C5GT/G, 6J5, 6J5G,
6CJ6
6DR6
6J5GT, 6J5GT/G, 6J5GTX, 6J5GX,
6CK3
6CL3, 6DW4, 6DW4A, 6DW4B, 6CH3*,
�
6C6 6C7 6C8G 6C9 6C 1 0 6CA4
6J5MG, 6L5G 77, 57A*, 57AS*
6F8G*�
6K1 1 �, 6Q l l t�
6CK4
6CJ 3 *
"'
6CK5
n
6CK6
"'
6CL3
6CK3, 6DW4A, B, 6CH3*,
6CJ3*
z
6CL5
G')
6CA5 6CA7 6CA1 1 6CB5 6CB5A
6EH5, 6AS5*
6CB5A, 6CL5 6CL5
6CL6
-t
6CLB
6CL8A, 6BEBA�, 6BR8A�,
c::
6FV8�, 6FV8A�
=
6CLBA
6CLB, 6BEBA�, 6BR8A�,
"' '"
6FVB�, 6FV8A�
6CB6
6CB6A, 6AW6, 6CF6,
6CM3
6DN3
6DC6, 6DE6, 6DK6,
6CM4
6HQ6, 6AG5�, 6AU6�, 6CM5
0-
n VI
6AU6A�, 6BC5, 6CE5�, 6CM6
G')
6CB6A
6BH6�, 6HS6*� 6CB6*t, 6CF6*t, 6DC6*t,
6CM7 6CMB
6CRB�, 6CS8�
-t
0I -
6DE6*t, 6D K6*t, 6HQ6*t, 6AU6A�,
6CN6 6CN7
n
0c:-:
6CE5�, 6HS6*�
6CQ4
6DT4*, 6DE4
6CD3
6CQ6
�
6CD6G
6CD6GA, 6DN6, 6EX6
6CQ8
6EAB�, 6UBA�
6CD6GA
6EX6
6CR4
6AJ4*�
6CD7
6AF7G*
6CR5
6CE3
6CD3, 6DU3
6CR6
6CE5
6AG5*t, 6A K5*, 6AU6A�, 6CRB
6CM8�, 6CS8�
6BC5*t, 6CB6A�,
6CS5
6DW5, 6CM6*
6CY5*�, 6EA5*�,
6CS6
6BE6, 6BY6
6EV5*�, 6HS6*�
6CS7
6DA7*
6CF6
6AW6, 6CB6, 6CB6A,
6CS8
6CMB�, 6CRB�
6DC6, 6DE6, 6DK6,
6CT3
6AG5�, 6AU6�,
6CT7
6A U6A�, 6BC5�, 6BH6*, 6CU5
6AS5*
6CE5�, 6HS6*�
6CU6
6BQ6GTB/6CU6,
6CG3
6CD3
6BQ6GTB, 6DQ6,
6CG6
62A6, 6BD6
6DQ6A, 6DQ6B,
6CG7
6FQ7
6FH6, 6GW6
� May not work in all circuits.
* Parallel�filament circuits.
t Series circuit not requiring control led warm-up time.
21
To Replace Use
To Replace Use
6CU7
60G6GT
6W6, 6W6GT, 6EF6*,
6CU8
6EY6*, 6EZ5*
6CV7
60G7
6CW4
60S4
60J8
6ES8, 6FW8*, 6KN8*
6CW5
60K3
6CW7
6FC7
60K6
6C86, 6CB6A, 6CF6,
6CX7
6CH7
60C6, 60E6, 6HQ6,
6CX8
6EB8, 6GN8, 6HF8,
6BC5�, 6CE5�, 6HS6*�
6JA8, 6JE8, 6AU8*,
60L3
6AU8A*, 6AW8*,
60L4
6AW8A*, 6JV8*
60L5
6BM5*
6CY5
6EA5, 6EV5, 6AG5*�,
60L7
6AK5*�, 6BC5*�,
60M4
60M4A, 60A4A, 60Q4,
6CE5*�, 6HS6*�
60T4, 6CQ4* 60E4*
6CY7
�
6CZ5
60W5*
60M4A 60N3
60T4, 6CQ4* 6CM3
605
605G, 605MG
CO N C
605G 605MG
605, 605MG 605, 605G
.".,Ig
606 607
78, 58AS*
::l
608
608G, 6A8*, 6A8G*.
U ..,g
6A8GT*, 6A8GTX*, 6A8MG*
60N6 60N7 60Q3 60Q3A 60Q4 60Q5 60Q6
6C06G, 6C06GA, 6EX6
60Q3A
60T4, 6CQ4*, 60E4* 60Q6A, 60Q6B, 6FH6,
6GW6
608G
608, 6A8*, 6A8G*,
60Q6A
60Q6B, 6FH6, 6GW6
\I)
W
1:0
::l
6010
I-
6A8GT*, 6A8GTX*, 6A8MG* 6AV1 1 *�, 6C1 O�, 6K1 1 *�, 6Ql 1 *�
60Q6B 60R4 60R6 60R7
6GW6*t
6CJ6 6F07, 6FR7
C)
60A4
Z
60A4A, 6AX4GTA, 6AX4GTB, 60M4,
60R8 60S4
>
60M4A, 60Q4, 60T4, 6AU4GT*, 6AU4GTA*,
6055 60S8
w U w
6DA4A
6CQ4*, 60E4* 60M4A, 60Q4, 60T4,
60T3 60T4
.:.::
6CQ4*, 60E4*
60T5
6CW4 6AQ5*, 6AQ5A*, 6BM5*
6EM5*
�
60A5 60A6
6BR5
60T6 60T6A
60T6A 60T6
60A7 6065 6066
6A56*
60T8 60U3 6DV4
60C6
6AW6, 66Z6, 6C66,
60W4
60W4A, B, 6CK3, 6CL3
6C66A, 6CF6, 60E6,
60W4A
60W4, 6, 6CK3, 6CL3
6DK6, 6AG5�, 6AU6�,
60W4B
60W4, A, 6CK3, 6CL3
6AU6A�, 6BC5�,
60W5
66H6*, 6CE5�
60X4
6DY4*�, 60Y4A*�
6DC8
6A08, 6N8
6DX8
60E4
6CQ4, 60A4A*, 6DM4*,
60Y4
60Y4A, 60X4*�
6DM4A*, 60Q4*, 6DT4* 6DY4A
6DY4, 6DX4*�
6DE6
6AW6, 6CB6, A, 6CF6,
6DY5
6CW5*
60C6, 6DK6, 6HQ6,
60Y7
60Z7�
6AG5�, 6AU6�, A�,
6DZ4
6AF4�, 6AF4A�, 6T4�
66C5�, 66H6*, 6CE5�
60Z7
6DY7�
60E7
6EW7
60Z8
6FY8*
22
t� May not work in all circuits.
� Parallel�filament circuits.
Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6ES
6GS�
6EY6
6EZS*
6E6
6EZS
6E7
6EZ8
6E8
6E8G
6F4
6L4
6E8G
6E8
6FS
6FSG, 6F5GT, 6F5MG
6EA4
6EH4, 6EH4-A
6FSG
6FS, 6FSGT, 6FSMG
6EAS
6EV5, 6AGS*�, 6AK5*�,
6FSGT
6FS, 6FSG, 6FSMG
6BC5*�, 6CES*�
6FSMG
6FS, 6FSG, 6FSGT
6EA7
6GL7, 6EM7
6F6
6F6G, 6F6GT, 6F6GT/G,
6EA8
6CQ8�, 6K08�, 6MQ8*,
6F6MG
6U8A*
6F6G
6F6, 6F6GT, 6F6GT/G,
6EBS
6ALS
6F6MG
6EB8
6CX8, 6GN8, 6HF8, 6JA8, 6F6GT
6F6, 6F6G, 6F6GT/G,
6JE8, 6AU8*, 6AU8A*,
6F6MG
6HZ8*, 6JV8*
6F6GT/G 6F6, 6F6G, 6F6GT,
6EC4 6EC7
6BX6*, 6BY7*
6F6MG
6F6MG 6F6, 6F6G, 6F6GT,
�
6EF4 6EF6
6EJ4, 6EJ4-A 6EY6*, 6EZS*
6F6GT/G
6F7
6F7S
m
6EH4
6EH4-A
6F7S
6F7
n
6EH4-A
6F8G
6C8G*�
m
6EH5
6CAS
6FA7
<
6EH7
6EJ7, 6HM6�, 6HT6�,
6FC7
6CW7
Z
6JC6�, 6JC6A�,
6F06
6ES6, 6ET6
C')
6EH8
6JD6� 6AU8*�, 6AU8A*�,
6F07 6FES
6FR7
-I c
6AW8*�, 6AW8A*�,
6FE8
6X8A�
6FGS
6HS6*�
m '"
6EJ4
6EJ4-A
6FG6
6EJ4-A 6EJ7
6EL4 6EL4-A
6EH7, 6HM6�, 6HT6�, 6JC6A�, 6JD6�
6EL4-A, 6EN4 6EN4
6FG7 6FHS
6FH6 6FH8
6BE8A�, 6BR8A� 6ESS, 6FQ5*, 6FQSA*,
6GKS* 60Q6B, 6GW6
0m0UI '-I
."
6EL7 6EM5
6BW7, 6BX6, 6HM6�
6FJ7 6FM7
-<
U'I
6EM7 6EN4
6EA7, 6GL7
6FM8 6FNS
�
6EQ7 6ERS 6ESS
6KL8� 6FYS*
6FQS 6FQ5A
6FQSA, 6GK5, 6ESS*
6FQS, 6GK5, 6ES5*
6ES6 6ES8
6ET6, 6F06 60J8, 6FW8*,
6FQ7 6FR7
6F07
6 KN8*
6FSS
6FG5, 6GU5*
6ET6
6ES6, 6FD6
6FV6
6ET7
6FV8
6FV8A, 6BR8A, 6BE8A�,
6EU7
6BR8*t, 6CL8�,
6EU8
6CL8A�
6EVS
6EAS, 6AG5*�, 6AKS*�,
6FV8A
6FV8, 6BRBA, 6BE8A,
6BCS*�, 6CES*�
6BR8*t, 6CL8�,
6EV7
6CL8A�
6EW6
6GM6, 6HS6*�
6FWS
6EW7
6FW8
6KN8, 60J8*, 6ES8*
6EX6
6CD6GA
6FYS
6ER5*
� May not work in a l l circuits.
* Parallel�fi1ament circuits.
t Series circuit not requiring controlled warm-up time.
23
To Replace Use
To Replace Use
6FY7
6GW5
6FY8
6GW6
6DQ6B
6G5
6G5/6H5, 6H5, 6T5,
6GW8
6U5/6G5, 6U5
6GX6
6GY6, 6HZ6
6G5/6H5 6G5, 6H5, 6U5, 6U5/6G5 6GX7
6G6G
6G6GT
6GY5
6G6GT
6G6G
6GY6
6GX6, 6HZ6
6Gl l
6GY8
6GA7
6GZ5
6GA8
6CG7*
6H4
6H4GT
6GB5
6H4GT
6H4
6GC5
6H5
6G5, 6G5/6H5, 6T5, 6U5,
6GC6
6U5/6G5
6GD7
6LJ8�
6H6
6H6G, 6H6GT, 6H6GT/G,
6GE5
�
6GE8
6H6G
6H6MG 6H6, 6H6GT, 6H6GT/G,
6GF5
6GE5
6H6MG
11'1
6GF7
6GF7A
6H6GT
6H6, 6H6G, 6H6GT/G,
01 -0
6GF7A 6GH8
6GF7 6GH8A, 6EA8, 6U8A,
6H6GT/G
6H6MG 6H6, 6H6G, 6H6GT,
" I >-
6AX8*t, 6CQ8�, 6GJ8*,
6lM8*t, 6U8*t,
6H6MG
6H6MG 6H6, 6H6G, 6H6GT,
II.
-0
6GH8A
6HL8*t, 6KE8* 6GH8, 6EA8, 6AX8*t,
6H8G
6H6GT/G
6CQ8�, 6GJ 8*, 6lM8*t, 6HA5
6HK5, 6HM5, 6HQ5
11'1
6U8*t, 6Hl8*t,
6HA6
IoU
=
=>
6GJ5
6 K E8 * 6GJ5A
6HB5 6HB6
...
6GJ5A
6GJ5
6HB7
C) Z
6GJ7 6GJ8
>
6AX8*, 6CQ8*�, 6EA8*, 6GH8*, 6GH8A*, 6U8*, 6U8A*
6HC8 6HD5 6HD7 6HE5
6BM8* 6JC5
IoU
U
IoU
6GK5 6GK6
"
6GK7
6FQS, 6FQ5A
6HE7 6HFS 6HF8
6CX8, 6EB8, 6GN8, 6JA8,
6Gl7
6EA7, 6EM7
�
6GM5
6JE8, 6HZ8*, 6JV8*, 6lF8*
6GM6
6EW6, 6HQ6*, 6JH6*
6HG5
6AQ5A, 6AQ5*t
6GM8
6HG8
6GN6
6HJS
6GN8
6CX8, 6EB8, 6HF8, 6JE8,
6HJ7
6AU8*, A*, 6AW8*, A*, 6HJ8
6AM8A, 6AM8*t
6HZ8*, 6JA8, 6JV8*,
6HK5
6HA5, 6HMS, 6HQ5
6LF8*
6HK8
6BC8, 6BQ7, 6BQ7A,
6GQ7
6BC7�
6BS8, 6BX8, 6BZ7,
6GS8
6BU8, 6BU8A, 6HS8, 6KF8
6BZ8, X 1 55, 6BK7*,
6GT5
6GT5A
6BK7A * , 6BK7B*
6GT5A
6GT5
6Hl5
6GU5
6FS5*
6Hl8
6Bl8, 6GH8*t, A*t
6GU7
6HM5
6HAS, 6HK5, 6HQ5
6GV5
6HM6
6HT6, 6JC6, 6JC6A,
6GV7
6JD6
6GV8
6HQ5
6HA5, 6HK5, 6HM5
� May not work in all circuits.
� Parallel-filament circuits.
24
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6HQ6
6BZ6, 6CB6, 6SB6A,
6J5MG
6J5, 6J5G, 6J5GT,
60E6, 60K6, 6JK6,
6J5GT/G, 6J5GTX,
6GM6*
6J5GX, 6C5, 6C5G,
6HR5
6C5GT, 6C5GT/G,
6HR6
6C5MG, 6L5G
6HS5
6HV5, 6HV5-A
6J6
6J6A
6HS6
6CB6*�, 6CB6A*�,
6J6A
6J6*t
6CE5*�, 6CF6*�,
6J7
6J7G, 6J7GT, 6J7GTX,
6CY5*�, 60K6*�,
6J7MG, 6W7G*
6EW6*�, 6FG5*�
6J7G
6J7, 6J7GT, 6J7GTX,
6HSS
6BUS, 6BUSA, 6GSS, 6KFS,
6J7MG, 6W7G*
6MKS, 6MKB-A
6J7GT
6J7, 6J7G, 6J7GTX,
6HT6
6HM6, 6JC6, 6JC6A,
6J7MG, 6W7G*
6J06
6J7GTX
6J7, 6J7G, 6J7GT,
6HU6 6HUS
6J7MG, 6W7G*
6J7MG
6J7, 6J7G, 6J7GT,
�
6HV5
6HS5, 6HV5-A
6J7GTX, 6W7G*
6HV5-A
6JBG
6HWB
6J9
6HZ5
6J 1 0
6Z10
6HZ6
6GX6, 6GY6
6J 1 1
6HZB
6EBS*, 6GNS*, 6HFB*,
6JA5
6JES*, 6JVS*, 6LFS*
6JAS
6CXS, 6EBS, 6GNS, 6HFS,
6J4
6JES, 6JTS, 6HZS*,
6J5
6J5G, 6J5GT, 6J5GT/G,
6JVS*, 6LFS*
6J5GTX, 6J5GX, 6J5MG, 6JB5
6JC5
6C5, 6C5G, 6C5GT/G,
6JB6
6JB6A
6C5MG, 6L5G
6JB6A
6JB6
6J5G
6J5, 6J5GT, 6J5GT/G,
6JBS
6J5GTX, 6J5GX, 6J5MG, 6JC5
0-
6C5, 6C5G, 6C5GT,
6JC6
6HM6, 6HT6, 6JC6A, 6J06
:::r
6C5GT/G, 6C5MG, 6L5G 6JC6A
6HM6, 6HT6, 6JC6, 6J06
10
6J5GT
6J5, 6J5G, 6J5GT/G, 6J5GTX, 6J5GX, 6J5MG, 6C5, 6C5G, 6C5GT, 6C5GT/G, 6C5MG, 6l5G
6JCS 6JD5 6J06 6JE6
6HV5-A 6HM6, 6HT6, 6JC6, 6JC6A 6JE6A, B, C
tO'rO
6J5GT/G
6J5, 6J5G, 6J5GT, 6J5GTX, 6JE6A
6J5GX, 6J5MG, 6C5,
6JE6B
6JE6B, 6JE6C 6JE6C, 6LQ6, 6LZ6, 6ME6
�
6C5G, 6C5GT, 6C5GT/G, 6JE6C
6JE6B, 6LQ6, 6LZ6, 6ME6
6C5MG, 6L5G
6JES
6EBS, 6GNS, 6HFS, 6JAS,
6J5GTX
6J5, 6J5G, 6J5GT,
6HZS*, 6JVS*, 6LFS*
6J5GT/G, 6J5GX,
6JF6
6JE6*, 6KM6, 6LQ6*
6J5MG, 6C5, 6C5G,
6J F S
6C5GT, 6C5GT/G,
6JG5
6C5MG, 6L5G
6JG6
6JG6A, 6JR6, 6KV6A
6J5GX
6J5, 6J5G, 6J5GT,
6JG6A
6JG6, 6JR6, 6KV6A
6J5GT/G, 6J5GTX,
6JH5
6JK5
6J5MG, 6C5, 6C5G,
6JH6
6BZ6, 6HQ6, 6GM6*
6C5GT, 6C5GT/G,
6J H S
6C5MG, 6L5G
6J K5
6JH5
6J K6
6EW6, 6JL6
6J KS
6JL6
6EW6, 6JK6
6JLS
� May not work in all circuits.
� Parallel-filament circuits.
t Series circuit not requ iring control led warm-up time.
25
To Replace Use
To Replace Use
6JM6
6JM6A
6K8GTX
6K8, 6K8G, 6K8GT
6JM6A
6JM6
6K1 1
6Q1 1
6JN6
6JN6A
6KA8
6JN6A
6JN6
6KD6
6JN8
6BR8A, 6FV8, 6FV8A,
6KD8
6EA8, 6GH8, 6GH8A, 6U8,
6BR8*t
6U8A
6JQ6
6KE6
6JR6
6JG6, A
6KE8
6J56
6J56A, B, C, 6KD6
6KF8
6BU8, 6BUBA, 6G58,
6J56A
6J56, B, C, 6KD6
6H58
6J568
6J56, A, C, 6lB6
6KG6
6JS6C
6J56B
6Kl8
6EQ7�
6JT6
6JT6A, 6JG6*, A*
6KM6
6JF6, 6lQ6*
6JT6A
6JT6, 6JG6*, A*
6KM8
6JT8
�
6JA8, 6KR8, A, 6KV8, 6lBS, 6lQ8, 6lY8
6KN6 6KN8
6JU6
6KR8
6KRSA, 6JT8, 6KV8, 6lB8,
\.<0C.(().J
6JUS 6JUSA
6JU8A 6JUS
6KRSA
6lQS, 6lY8 6KR8, 6JTS, 6KVS, 6lBS,
10
6JVS
6AWS, A, 6K5S, 6lFS, 6CX8*, 6EBS*, 6GNS*,
6K56
6lQS, 6lYS
6HFS*, 6HZS*, 6JAS*,
6KSS
6AUS, 6AU8A, 6AWS,
"""
\0() 6JW6
6JE8*
6AW8A, 6JV8, 6lF8, 6CXS*, 6EBS*, 6GNS*,
6JWS
6lXS
6HF8*, 6HZS*, 6JAS*,
V)
6JXS
UoI
6JZ6
6JZ8
...
6K5
6K5G, 6K5GT
6KT6 6KT8 6KUS
6JES*
C)
6K5G
6K5, 6 K5GT
6KV6
6KV6A
Z
6K5GT
6K5, 6K5G
6KV6A
:>
6K6
6K6G, 6K6GT, 6K6GT/G,
6KVS
6JTS, 6KRS, A, 6lB8,
6K6MG
6lQ8, 6lYS
UoI
U
6K6G
6K6, 6K6GT, 6K6GT/G,
6KY6
UoI
6K6MG
6KY8
6KYSA
6K6GT
6K6, 6K6G, 6K6GT/G,
6KYSA
6 KYS
�
6K6GT/G
6K6MG 6K6, 6K6G, 6K6GT,
6KZ8 614
6K6MG
6l5G
6C5, 6C5G, 6C5GT,
6K6MG
6K6, 6K6G, 6K6GT,
6C5GT/G, 6C5MG,
6K6GT/G
6J5, 6J5G, 6J5GT,
6K7
6K7G, 6K7GT, 6K7GTX,
6J5GT/G, 6J5GTX,
6K7MG, 6U7G
6J5GX, 6J5MG
6K7G
6K7, 6K7GT, 6K7GTX,
616
6l6A, 6l6G, 6l6GA,
6K7MG, 6U7G
6l6GAY, 6l6GB,
6K7GT
6K7, 6K7G, 6K7GTX,
6l6GC, 6l6GT, 6l6GX,
6K7MG, 6U7G
6l6Y, 5S8 1 , 758 1 ,
6 K7GTX
6K7, 6 K7G, 6K7GT,
75S 1 A
6K7MG, 6U7G
6l6A
6l6, 6l6G, 6l6GA,
6K7MG
6K7, 6K7G, 6K7GT,
6l6GAY, 6l6GB, 6l6GC,
6K7GTX, 6U7G
6l6GT, 6l6GX, 6l6Y,
6KS
6KSG, 6KSGT, 6KSGTX
588 1 , 75S 1 , 75S 1 A
6K8G
6KS, 6KSGT, 6KSGTX
6K8GT
6KS, 6 KSG, 6K8GTX
May not work in all circuits.
* Parallel�filament circuits.
26
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6L6G
6L6, 6L6A, 6L6GA,
6LR6
6JS6C
6L6GAY, 6L6GB, 6L6GC, 6LRB
6L6GT, 6L6GX, 6L6Y,
6LTB
588 1 , 758 1 , 75B 1 A
6LU6
6L6GA
6L6, 6L6A, 6L6G, 6L6GAY, 6LU8
6MU8
6L6GB, 6L6GC, 6L6GT,
6LV6
6LF6
6L6GX, 6L6Y, 588 1 ,
6LW6
758 1 , 758 1 A
6LX6
6L6GAY
6L6, 6LM, 6L6G, 6L6GA,
6LXB
6JW8*t
6L6GB, 6L6GC, 6L6GT,
6LYS
6JT8, 6KRS, A, 6KV8,
6L6GX, 6L6Y, 588 1 ,
6LB8, 6LQS
75S 1 , 758 1 A
6LZ6
6ME6
6l6GB
6l6, 6l6A, 6l6G, 6l6GA,
6M3
6l6GAY, 6l6GC, 6l6GT, 6M5
6CK6�
6l6GX, 6l6Y, 588 1 ,
6M6G
6AG6G*
�
758 1 , 758 1 A
6M7G
6K7�, 6K7G�, 6K7GT�,
6l6GC
758 1 , 758 1 A
6K7GTX�, 6K7MG�
"
6l6GT
6l6, 6LM, 6L6G, 6L6GA,
6MBG
6M8GT
"'
n
6L6GAY, 6L6GB, 6l6GC, 6M8GT
6M8G
"'
6L6GX, 6L6Y, 5B8 1 ,
6M l l
<
6L6GX
758 1 , 7581A 6L6, 6L6A, 6L6G, 6L6GA,
6MA6 6MB6
6JE6B, 6JE6C, 6LZ6
Z C)
6L6GAY, 6L6GB, 6L6GC, 6MB8
6LJ8�
6l6GT, 6l6Y, 5BB 1 , 758 1 , 758 1 A
6MC6 6MD8
-t c:
6L6Y
6l6, 6LM, 6L6G, 6l6GA,
6ME6
6JE6B, 6JE6C, 6LZ6
"'
6L6GAY, 6L6GB, 6L6GC, 6ME8
VI
6l6GT, 6L6GX, 588 1 ,
6MFS
758 1 , 758 1A
6MGS
6EAB, 6U8, A, 6CQB�
6L7 6L7G 6LB6 6LBS
6L7G 617 6JS6, 6JS6A, 6JS6B, 6LR6 6JT8, 6KR8, A, 6KVS,
6MJS 6MKS 6MKS-A 6MLS
6HS8, 6MKS-A 6HS8, 6MKS
r-
tf
Z
6LQ8, 6LY8
6MNB
6LC6 6LCB
6LH6, A
6MQB
6EA8*, 6US*, 6U8A*
C)
6MU8
-t
"""-
6LE8
6MV8
C)
6lF6
6lV6
6MYS
6lUS
6LFS
MWB, A, 6JVS, 6KS8,
6N3
6U3
�
6CXS*, 6GNS*, 6HFS*, 6N4
6HZ8*, 6JAS*, 6JES*
6N5
6N5G, MB5, 6AB5/6N5
6LG6
6N5G
6N5, 6AB5, 6AB5/6N5
6LH6
6LH6A
6N6
6N6G, 6N6MG, 6AB6G*
6LH6A 6LJ6
6LJ6-A
6N6G 6N6MG
6N6, 6N6MG, 6AB6G* 6N6, 6N6G, 6AB6G*
6LJ6-A 6LJ8
6GD7�, 6MB8�
6N7
6N7G, 6N7GT, 6N7GT/G,
6N7MG
6LM8
MXS, 6GH8, 6GH8A,
6N7G
6N7, 6N7GT, 6N7GT/G,
6CQS�, 6LM8A
6N7MG
6LM8A
6AX8, 6CQ8�, 6GH8, A
6N7GT
6N7, 6N7G, 6N7GT/G,
6LNS
6BL8t*
6N7MG
6LQ6
6JE6B, 6JE6C, 6LZ6, 6ME6 6N7GT/G 6N7, 6N7G, 6N7GT,
6LQ8
6JT8, 6KR8, A, 6KV8,
6N7MG
6LB8, 6LY8
May not work in all circuits.
* Parallel-fi lament circuits.
t Series circuit not requiring controlled warm-up time.
27
To Replace Use
To Replace Use
6N7MG
6N7, 6N7G, 6N7GT,
6SA7GT
6SA7, 6SA7G, 6SA7GT/G,
6N7GT/G
6SA7GTX, 6SA7GTY,
6N8
6A08, 60C8
6SA7Y, 6SB7, 6SB7Y,
6P5G
6P5GT, 6P5GT/G
6SB7GTY
6P5GT
6P5G, 6P5GT/G
6SA7GT/G 6SA7, 6SA7G, 6SA7GT,
6P5GT/G 6P5G, 6P5GT
6SA7GTX, 6SA7GTY,
6P6
6SA7Y, 6SB7, 6SB7Y,
6P7G
6SB7GTY
6Q4
6SA7GTX 6SA7, 6SA7G, 6SA7GT,
6Q6
6Q6G
6SA7GT/G, 6SA7GTY,
6Q6G
6Q6
6SA7Y, 6SB7, 6SB7Y,
6Q7
6Q7G, 6Q7GT, 6Q7MG,
6SB7GTY
6B6, 6B6G, 6T7G*
6SA7GTY 6SA7, 6SA7G, 6SA7GT,
�
6Q7G
6Q7, 6Q7GT, 6Q7MG, 6B6, 6B6G, 6T7G*
6SA7GT/G, 6SA7GTX, 6SA7Y, 6SB7, 6SB7Y,
t
6Q7GT
6Q7, 6Q7G, 6Q7MG, 6B6, 6B6G, 6T7G*
6SA7Y
6SB7GTY 6SA7, G, GT, GT/G, GTX,
...
6Q7MG
6Q7, 6Q7G, 6Q7GT, 6B6,
GTY, 6SB7, Y, GTY
':J": \oC)
6Q 1 1
6B6G, 6T7G*
6SB7 6SB7GTY
6SB7GTY, 6SB7Y 6SB7, 6SB7Y
JJ
...
6R3 6R4 6R6G
6AF3*, 6AL3*, 6BR3*
6SB7Y 6SC7 6SC7GT
6SB7, 6SB7GTY 6SC7GT, 6SC7GTY 6SCl, 6SClGTY
Z
6R7
6R7G, 6R7GT, 6R7GT/G,
6SC7GTY " 6SCl, 6SClGT
\oC)
6R7MG
6S07GT
6SE7GT
6R7G
6R7, 6R7GT, 6R7GT/G,
6SE7GT
6S07GT
'"
i&.I
6R7GT "
6R7MG 6R7, 6R7G, 6R7GT/G,
t-
6R7GT/G
6R 7MG 6R7, 6R7G, 6R7GT,
6R7MG
Z
6R7MG
6R7, 6R7G, 6R7GT, 6R7GT/G
6R8
u.I
6S2
6T8, 6T8A 6S2A
U
u.I
6S2A
"
6S4
6S2 6S4A
6S4A
6SFS 6SF5GT 6SF7 6SF7GT 6SG7
6SG7GT
6SF5GT 6SF5 6SF7GT 6SF7 6SH7GT, 6SG7Y, 6SH7,
6SH7GT, 6AB7*�, 6AB7Y*�, 6ACl*�, 6AC7A*�, 6AClY*�, 6AJ7*� 6SG7, 6SG7Y, 6SH7, 6SH7GT, 6AB7*�, 6AB7Y*�, 6ACl*�,
�
6S6GT
6S7
6S7G, 6K7*, 6K7G*,
6AClA*�, 6AC7Y*�, 6AJ7*�
6K7GT*, 6K7GTX*,
6SG7Y
6SG7, GT, 6SH7, GT,
6K7MG*
6AB7*�, 6AB7Y*�,
6S7G
6S7, 6K7*, 6K7G*,
6ACl*�, 6AClA*�,
6K7GT*, 6K7GTX*,
6AC7Y*�, 6AJ7*�
6K7MG*
6SH7
6SH7GT, 6SH7L, 6SG7,
6S8GT
6SG7GT, 6SG7Y,
6SA7
6SA7G, 6SA7GT,
6AB7*�, 6AB7Y*�,
6SA7GT/G, 6SA7GTX,
6ACl*�, 6AClA*�,
6SA7GTY, 6SA7Y, 6SB7,
6AC7Y*�, 6AJ7*�
6SB7Y, 6SB7GTY
6SH7GT
6SH7, 6SH7L, 6SG7,
6SA7G
6SA7, 6SA7GT, 6SA7GT/G,
6SG7GT, 6SG7Y,
6SA7GTX, 6SA7GTY,
6AB7*� 6AB7Y*�,
6SA7Y, 6SB7, 6SB7Y,
6ACl*�, 6AC7A*�,
6SB7GTY
6AC7Y*�, 6AJ7*�
� May not work in all circuits.
'II" Parallel-filament circuits.
28
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6SH7L
6SH7, 6SH7GT, 6SG7,
6SN7GTB 6SN7GTA*t
6SG7GT, 6SG7Y,
6SN7GTY 6SN7A, 6SN7L, 6SN7GT,
6AB7*�, 6AB7Y*�,
6SN7GTA,
6ACl*�, 6AC7A*�,
6SN7GTB
6AClY*�, 6AJ7*�
6SN7L
6SN7A, 6SN7GT,
6SJ7
6SJ7GT, 6SJ7GTX,
6SN7GTA, 6SN7GTB,
6SJ7GTY, 6SJ7Y
6SN7GTY
6SJ7GT
6SJ7, 6SJ7GTX, 6SJ7GTY, 6SQ7
6SQ7G, 6SQ7GT,
6SJ7Y
6SQ7GT/G,
6SJ7GTX 6SJ7, 6SJ7GT, 6SJ7GTY,
6SZ7*
6SJ7Y
6SQ7G
6SQ7, 6SQ7GT,
6SJ7GTY 6SJ7, 6SJ7GT, 6SJ7GTX,
6SQ7GT/G, 6SZ7*
6SJ7Y
6SQ7GT
6SQ7, 6SQ7G, 6SQ7GT/G,
6SJ7Y
6SJ7, 6SJ7GT, 6SJ7GTX,
6SZ7*
6SJ 7GTY
6SQ7GT/G 6SQ7, 6SQ7G, 6SQ7GT,
�
6SK7
6SG7, 6SK7GT, 6SK7GT/G,
6SZ7*
6SK7GTX, 6SK7GTY,
6SR7
6SR7G, 6SR7GT, 6ST7*
;10
6SK7Y, 6SS7*, 6SS7GT*
6SR7G 6SR7GT
6SR7, 6SR7GT, 6ST7* 6SR7, 6SR7G, 6ST7*
rn
n
rn
6SK7G
6SG7, 6SH7, 6SK7,
6SS7
6SS7GT, 6SK7*, 6SK7G*,
<
6SK7GT, 6SK7GT/G, 6SK7GTX, 6SK7GTY, 6SK7Y, 6SS7*, 6SS7GT*
6SK7GT*, 6SK7GT/G*,
6SK7GTX*, 6SK7GTY*, 6SK7Y*
Z C)
6SK7GT
6SG7, 6SH7, 6SK7,
6SS7GT
6557, 65K7*, 65K7G*,
-4
65K7G, 65K7GTIG, 6SK7GTX, 6SK7GTY,
65K7GT*, 6SK7GT/G*, 6SK7GTX*, 6SK7GTY*,
c: !:II'
rn
6SK7Y, 6SS7*, 6SS7GT*
6SK7Y*
VI
6SK7GT/G 6SK7, 6SK7G, 65K7GT,
6ST7
65R7, 6SR7G*, 65R7GT*
65K7GTX, 65K7GTY,
65U7GT
65U7GTX, 65U7GTY
0-
65K7Y, 6557*,
65U7GTX 65U7GT, 65U7GTY
VI
65K7GTX
6557GT* 65K7, 65K7G, 65K7GT,
6SK7GT/G, 65K7GTY,
65U7GTY 65V7 6SV7GT
65U7GT, 65U7GTX 65V7GT 65V7
% ...
0rI --
65K7Y, 6S57*,
65Z7
65Q7*, 65Q7G, 65Q7GT*,
c:
6S57GT*
65Q7GT/G*
65K7GTY 65K7, 65K7G, 65K7GT,
6T4
6SK7GT/G, 65K7GTX,
6AF4�, 6AF4A�, 6AN4�, 60Z4�
C) -4
65K7Y, 6557*, 6557GT*
6T5
6G5, 6G5/6H5, 6H5, 6U5,
�
6U5/6G5
65K7Y
6SK7, 6SK7G, 6SK7GT,
6T6
6T6GM
6SK7GT/G, 6SK7GTX,
6T6GM
6T6
6SK7GTY, 6557*,
6T7G
6B6*, 6B6G*, 6Q7*,
6SS7GT*
6Q7G*, 6Q7GT*,
6SL7A
65L7GT, 6SL7GTY,
6Q7MG*
6SL7L
6TB
6T8A, 6AK8
6SL7GT
6SL7A, 6SL7GTY, 6SL7L
6T8A
6T8*t, 6AK8*t
6SL7GTY 6SL7A, 6SL7GTY, 6SL7L
6T9
6SL7L
6SL7A, 65L7GT, 65L7GTY
6Tl O
6A01 O�
65N7A
65N7GT, 65N7GTA,
6U3
6SN7GTB, 6SN7GTY,
6U4GT
6AS4GT, 6AX4GT,
6SN7L
6AX4GTA, 6AX4GTB,
6SN7GT
65N7A, 6SN7L, 6SN7GTA,
60A4, 60A4A, 60M4,
65N7GTB, 6SN7GTY
60M4A, 60Q4, 60T4,
6SN7GTA 6SN7GTB
6W4GT, 6W4GTA,
� May not work in all circuits.
* Parallel-filament circuits.
t Series circuit not requiring controlled warm-up time.
29
To Replace Use
To Replace Use
6U4GT ( conI) 6AU4GT*, 6AU4GTA*,
6V6Y
6V6, 6V6G, 6V6GT,
6CQ4*, 6DE4*
6V6GTA, 6V6GT/G,
6U5
6G5, 6G5/6H5, 6H5, 6T5,
6V6GTX, 6V6GTY,
6U5/6G5
6V6GX, 740S
6U5/6G5 6U5, 6G5, 6G5/6H5, 6H5, 6V7G
6T5
6VS
6U6GT
6Y6G *, 6Y6GA*, 6Y6GT* 6V9
6U7G
6K7, 6K7G, 6K7GT,
6W4GT
6W4GTA, 6AS4GT,
6K7GTX, 6K7MG, 657*,
6AX4GT, 6AX4GTA,
6S7G*
6AX4GTS, 6DA4,
6US
6EAS, 6LNS, 6CQS�,
6DA4A, 6DM4, 6DM4A,
6KDS*, 6MQS*, 6USA
6DQ4, 6DT4, 6U4GT,
6USA
6EA8, 6LNS, 6CQS�,
6AU4GT*, 6AU4GTA*,
6KDS�, 6MQS�, 6US*t
6CQ4*, 6DE4*
�
6U9 6U10
6AC 1 0�
6W4GTA
6AX4GTA, 6AX4GTB, 6DA4, 6DA4A, 6DM4,
6V3
6V3A
an
6V3A 6V4
6V3 6CA4*
6DM4A, 6DQ4, 6DT4, 6U4GT, 6AU4GT*, 6AU4GTA*, 6CQ4*,
X a00n(I)
6V5G 6V5GT 6V6
6V5GT 6V5G 6V6G, 6V6GT, 6V6GTA,
6W5 6WSG
6DE4* 6WSG, GT, 6AXSGT* 6WS, GT, 6AXSGT*
::> 00()
6V6GT /G, 6V6GTX, 6V6GTY, 6V6GX, 6V6Y,
6WSGT 6W6
6WS, G, 6AXSGT* 6W6GT, 6DG6GT, 6EF6*,
740S
6EY6*, 6EZS*
awn
6V6G
6V6, 6V6GT, 6V6GTA, 6V6GT /G, 6V6GTX,
6W6GT
6W6, 6DG6GT, 6EF6*, 6EY6*, 6EZS*
CICII
::>
6V6GTY, 6V6GX, 6V6Y, 6W7G
6J7*, 6J7G*, 6J7GT*,
I-
740S
6J7GTX*, 6J7MG*
Z
>
6V6GT
6V6, 6V6G, 6V6GTA,
6X4
6V6GT /G, 6V6GTX,
6XS
6V6GTY, 6V6GX, 6V6Y,
740S
6BX4, 6AV4* 6XSG, 6XSGT, 6X5GT/G,
6XSL, 6XSMG, 6AXSGT*, 6WSG*,
w V w
6V6GTA
6V6*t, 6V6G*t, 6V6GTt*, 6V6GT/G*t, 6V6GTX*t, 6XSG
6WSGT* 6XS, 6XSGT, 6XSGT/G,
0::
6V6GTy*t, 6V6GX*t,
6XSL, 6XSMG,
6V6y*t, 740S*t
�
6V6GT/G 6V6, 6V6G, 6V6GT,
6AXSGT*, 6WSG*, 6W5GT*
6V6GTA, 6V6GTX,
6X5GT
6XS, 6XSG, 6X5GT/G,
6V6GTY, 6V6GX, 6V6Y,
6XSL, 6XSMG,
7408
6AXSGT*, 6W5G*,
6V6GTX
6V6, 6V6G, 6V6GT,
6W5GT*
6V6GTA, 6V6GT/G,
6XSGT/G 6X5, 6X5G, 6X5GT, 6XSL,
6V6GTY, 6V6GX, 6V6Y,
6X5MG, 6AX5GT*,
740S
6W5G*, 6W5GT*
6V6GTY
6V6, 6V6G, 6V6GT,
6X5L
6X5, 6X5G, 6X5GT,
6V6GTA, 6V6GT/G,
6X5GT/G, 6X5MG,
6V6GTX, 6V6GX,
6AX5GT*, 6WSG*,
6V6GY, 740S
6W5GT*
6V6GX
6V6, 6V6G, 6V6GT,
6X5MG
6X5, 6X5G, 6X5GT, 6X5L,
6V6GTA, 6V6GT/G,
6X5GT/G, 6AX5GT*,
6V6GTY, 6V6GTX,
6W5G*, 6W5GT*
6V6Y, 740S
� May not work in a l l circuits.
* Para l lel�fi l a ment circuits.
30
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
6XS
6XSA, 6AUS*�, 6AUSA*�, 78SLM
78S, 7AS*
6AWS*�, 6AWSA*�,
7C4
6EHS�
7CS
7CSLT, 78S*, 7BSLT*
6XSA
6XS*t, 6AUS*�, 6AU8A*�, 7CSLT
7CS, 7BS*, 7BSLT*
6AWS*�, 6AWSA*�,
7C6
7B6*, 7B6LM*
6EHS�
7C7
7AJ7*, 7G7*, 7l7*
6X9
7D7
6Y3
6Y3G
7DJS
7ESS
6Y3G
6Y3
7E5
6YS
6YSG, 6YSGT, 6YSV
7E6
6YSG
6YS, 6YSGT, 6YSV
7E7
7R7
6YSGT
6YS, 6YSG, 6Y5V
7ED7
6YSV
6YS, 6YSG, 6YSGT
7EK7
7AN7
6Y6G
6Y6GA, 6Y6GT, 6U6GT*
7ESS
7DJS
6Y6GA
6Y6G, 6Y6GT, 6U6GT*
7EY6
6Y6GT
6Y6G, 6Y6GA, 6U6GT*
7F7
6Y7G
7FS
�
6Y9 6Y 1 0 6Z3 6Z4 6ZS
IV S4/6Z4, 9S l 2ZS, 6ZS/l 2ZS
7FCl 7G7
7EK7 7V7, 7AG7*, 7C7*, 7L7*
m
7GS 7GS7
0 m
7GV7
<
6ZS / l 2ZS 6Z6G
6ZS, l 2ZS 6Z6GT, 6Z6MG
7H7
7A7, 7A7lM, 7AH7*,
Z
7B7*
C')
6Z6GT 6Z6MG
6Z6G, 6Z6MG 6Z6G, 6Z6GT
7HG8 7J7
8HG8 7S7
-4 C
6Z7G
7K7
U:I
6Zl0
6J 1 0
7KY6
"' '"
6ZY5G
6X5*, 6XSG*, 6X5GT*,
7KZ6
6XSGT/G*, 6XSL*,
717
7C7*, 7G7*, 7V7*
6XSMG*
7A4
XXL
7N7
7AF7*
7Q7
0><
CO
7AS
7R7
7E7
I
7A6
7S7
7J7
CO U:I
7A7
7A7LM, 7H7, 7B7*
717
7AG7*, 7V7*
CO
7A7lM
7A7, 7H7, 7B7*
7V7
7G7, 7l7*, 717*
7A8
78S*, 7B8LM*
7W7
�
7AB7
7X6
7AD7
7X7
XXFM
7AF7
7Y4
7Z4*
7AG7
7AH7, 7G7*, 717*
7Z4
7AH7
7AG7, 7B7, 7H7*
SAS
9A8, 9EA8, 9US, 9U8A
7AJ7
7C7*
8AC9
7AK7
BAC I O
BAC1 0-A
7AN7
7EK7
BAC1 0-A
7AU7
6AU7, 6AX7�
BAL9
7B4
7A4�, XXL�
BAR I l
BBQl l �
7BS
7B5LT, 7CS*, 7CSLT*
8AU8
8AUBA, 8AW8A, SBASA,
7BSLT
7BS, 7CS*, 7C5LT*
8BH8
7B6
7B6LM, 7C6*
BAUBA
BAU8, SAWSA, B BABA,
7B6LM
7B6, 7C6*
BBHS
7B7
7AH7, 7A7*, 7A7lM*,
BAW8A
8AU8, 8AU8A, 8BA8A,
7H7*
8BH8, BKS8, BJVB
7BB
78SLM, 7AS*
8BS
� May not work in all circuits.
* Paral lel�fi lament circuits.
t Series circuit not requiring controlled warm-up time.
31
To R.eplace Use
To R.eplace Use
8B10
9A K 1 0
8BASA
SAUS, SAUSA, SAWSA,
9AM I O
8BH8
9AQ8
SBAl l
9AU7
8BH8
SAU8, SAUSA, SAWSA,
9BJ l l
8BA8A
9BMS
SBMl l 8BNS
9BR7 9BR8
9CL8�
SBNl l 8BQS 8BQ7A
9BW6 9CGSA 9CL8
9BRSt� 9BRS�t
8BQ l l 8BUl l
SARl l �
9DlS 9EAS
SA8, 9USA, 9ASt, 9U8t
SCB l l
9EF6
�
8CG7 8CM7
8FQ7�
9EN7 9GB8
00
...
8CN7 8CS7
::J: 0
-
SCWS SCWSA
SCWSA scwst
c!.
-
SCX8 8CY7
8EBS, 8GN8, 8JES
!CD
8EB8
CO
SEMS
SCX8, SGNS, 8JES
9GH8A 9GVS 9JWS 9KC6 9KX6 9KlS 9LA6 9ML8
9EAS
SET7
9MNS
III
SFQ7
&&.I !CD
8GJ7
SGX7
;:)
8GK6
t-
SGNS
SCXS, SEBS, SJES
Z
8GU7 SGX7
SGJ7
8HA6 8HGS
7HGS
&&.I
U
&&.I
SJE8 SJKS
SCXS, SEBS, SGNS
8JLS
8JTS
�
8JUSA
9US 9USA
9XS 9V9 10 1 0A1 1 1 1 0 BQS 1 0CS 1 0CWS 1 0DA7 10DE7 1 0DR7
SAS, 9UaA, 9AS, 9EAS SA8, 9U8t, 9ASt,
9EA8
l OX, l OY
1 0EW7 1 0FD7, 1 0FR7
8JVS 8KAS
SAW8A, SKSS
1 0DX8 1 0 EB8
1 0GN8, 1 0HFS, I OJAS,
8 KRS
l l J E8
8KSS
SAUS, SAU8A, BAWSA, SJV8
1 0EG7 1 0EM7
1 0EM7 l OEG7
8LC8 8LES 8LS6 8LT8 BMUS 8SN7GTB 8U9 8X9 9AS 9AH9 9AKS
8AS, 9EAS, 9US, 9USA
1 0EW7 1 0FD7 1 0FR7 1 0GF7 1 0GF7A 1 0GK6 l OON8
1 0HA6 1 0 HF8
1 0FR7 l OFD7 l OGF7A l OGF7
I OEB8, 1 0HFS, l l JES, l OLlS, 1 0JYS, 1 0JA8
I OEBS, 1 0GN8, l I JES, l OLlS, 1 0JYS, 1 0JA8
� May not work in all circuits.
* Parallel-filament circuits.
32
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
1 0J l 0
1 2A6G
1 2A6, 12A6GT, 1 2A6GTY,
1 0JA5
1 2A6Y, 1 2V6GT*�
1 0JA8
l 1 J E8, I OEB8, l ooN8,
1 2A6GT
1 2A6, 1 2A6G, 1 2A6GTY,
1 0HF8, 1 0JY8
1 2A6Y, 1 2 V6GT*�
1 0JT8
1 0KR8, 1 0LB8*, 1 0LW8,
1 2A6GTY 1 2A6, 1 2A6G, 1 2A6GT,
1 OLY8, 1 1 KV8, l l LQ8
1 2A6Y, 1 2V6GT*�
1 0JY8
1 0EB8, 1 0GN8, 1 0HFB,
1 2A6Y
1 2A6, 1 2A6G, 1 2A6GT,
1 0LZ8, 1 1 JE8, 1 0JA8
1 2A6GTY, 1 2V6GT*�
1 0KR8
10LW8, 1 0JT8, 1 0LB8,
1 2A7
1 0KU8 1 0LB8
1 1 KV8, l 1 LQ8 1 0LW8, 1 0KR8, 1 0JT8,
1 2A8 1 2A8G 1 2A8GT
1 2A8G, 1 2A8GT 1 2A8, 1 2A8GT 1 2A8, 1 2A8G
1 1 KV8, l 1 LQ8
1 2AB5
1 0LE8 1 0LW8
1 0JT8, 1 0KR8, 1 0LB8,
1 2AC5 1 2AC6
1 2AF6�
�
1 0LY8
1 1 KV8, l l LQ8 1 0JT8
1 2AC1 0-A 1 2AD5
.".',
1 0LZ8
1 0EB8, 1 0GN8, 1 0HF8, l l J E8, 1 0JY8
1 2AD6 1 2AD7
1 2AG6 1 2AX7*, 1 2AX7A*,
n "'
1 0T l O
12BZ7*, 1 2DF7*,
<
l OX
1 0, l OY
l OY
1 0, l OX
1 2DM7*, 1 2DT7*,
Z
7025*, 7025A*
1 0Z 1 0 11 l l ARl l l l BM8 l l BQ l l 1 1 BT l 1 l lC5 l l CA1 1
l 1 BQ l l � l lARl l� 1 2DM5
1 2AE6
1 2AE6A, 1 2FT6
-i
1 2AE6A
1 2AE6, 1 2FT6
c:
1 2AE7 1 2AE1 0
1 3Vl0
'm ""'
1 2AF3
1 2BR3
1 2AF6 1 2AG6 1 2AH6
1 2 BL6, 1 2AC6, 1 2EK6� 1 2AD6
... 0 ...
l lCF1 1 l lCHl l l l CY7
1 2AH7GT 1 2AH8 1 2AJ6
f...
..,
1 1 055 ..
1 2AJ7
l 1 FY7 l 1 HM7 l 1 J E8
1 0EB8, 1 0GN8, 1 0HF8,
1 2AL5 1 2AL8 1 2A11 1
<'"
1 0JA8, 1 0LZ8, 1 0JY8
1 2AQ5
1 2BM5*
l 1 KV8
1 0JT8, 1 0KR8, 1 0LW8,
1 2A55
1 2CA5*, 1 2R5*
�
1 0LB8, l l LQ8
1 2AT6
1 2AT6A, 1 2AV6, 1 2AV6A,
l 1 LQ8
l 1 KV8, 1 0LB8, 1 0LW8,
1 2 BK6, 1 2 BT6
1 0KR8, 1 0JT8
1 2AT6A
1 2AV6A, 1 2AT6*t
l l LT8
1 2AV6*t, 1 2BK6*t,
I I IY6 l 1 M58
1 2AT7
1 2BT6*t 1 2AZ7*, 1 2AZ7A*
l 1 Y9
1 2AU6
1 2AU6A, 1 2 BA6, 1 2BA6A,
12
1 2AW6�
1 2A
1 2A / 1 1 2A, 1 1 2A
1 2AU6A
1 2BA6A, 1 2AU6*t,
1 2A/ 1 1 2A 1 2A , 1 1 2A
1 2 BA6*t
1 2A4
1 2AU7
1 2AU7A, 1 2AX7�,
1 2A5
1 2AX7A�
1 2A6
1 2A6G, 1 2A6GT,
1 2AU7A
1 2AU7, 1 2AX7�, 1 2AX7A�
1 2A6GTY, 1 2A6Y,
1 2AU8
1 2V6GT*�
1 2AV5GA 1 2AV5GT*t
� May not work in all circuits.
* Paral l el-filament circuits.
t Series circuit not requiring control led warm-up time.
33
To Replace Use
To Replace Use
1 2AV5GT 1 2AV5GA
1 2BF6
1 2BU6
1 2AV6
1 2AV6A, 1 2AT6, 1 2AT6A, 1 2 BF l l
1 2BK6, 1 2BT6
1 2BQ6GTB 1 2BQ6GTB/ 1 2CU6, 1 2CU6,
1 2AV6A
1 2AT6A, 1 2AV6*t,
1 2 0Q6, 1 20Q6A,
1 2AT6*t, 1 2 BK6*t,
1 20Q6B, 1 2GW6
1 2 BT6*t
1 2BH7
1 2BH7A
1 2AV7
1 2 BH7A
1 2BH7*t
1 2AW6
1 2AU6�, 1 2AU6A�
1 2BK5
1 2AX3
1 2BK6
1 2AT6, 1 2AT6A, 1 2AV6,
1 2AX4GT 1 2AX4GTA, 1 2AX4GTB,
1 2AV6A, 1 2 BT6
1 204, 1 204A, 1 20M4,
1 2Bl6
1 2AF6, 1 2EK6�
1 20M4A, 1 20Q4
1 2BM5
1 2AQ5*
1 2AX4GTA 1 2AX4GTB, 1 204, 1 204A, 1 2BN6
1 2BN6A
�
1 20M4, 1 20M4A, 1 2004, 1 2AX4GT*t
1 2BN6A 1 2 B06GA
1 2BN6*t 1 2BQ6GTA, 1 2BQ6GTB,
'oQ
1 2AX4GTB 1 2 04A, 1 20M4, 1 20M4A,
1 2BQ6GTB/ 1 2CU6,
N ea N ...
1 2AX7
1 2004 1 2AX7A, 1 2 0F7, 1 20T7,
7025, 7025A, 1 2A07*,
1 2BQ6GT
1 2CU6, 1 20Q6, A, B, 1 2GW6 1 2BQ6GA, 1 2 BQ6GTA,
I
... .C"J
1 2AX7A
1 2AU7�, 1 2AU7A�, 1 2BZ7*, 1 20M7* 1 2AX7, 1 20F7, 1 20T7,
1 2BQ6GTB, 1 2BQ6GTB/ 1 2CU6, 1 2CU6, 1 20Q6, 1 20Q6A, 1 2 0Q6B,
>
<C(
N ...
7025, 7025A, 1 2A07*, 1 2AU7�, 1 2AU7A�, 1 2BZ7*, 1 20M7*
1 2BQ6GTA
1 2GW6 1 2BQ6GA, 1 2BQ6GTB,
1 2BQ6GTB/ 1 2CU6,
1 2AY3
1 2AY3A, 1 2 B53, Ai
1 2CU6,� 1 20Q6,
'..".
1 2AY3A
1 2CK3, 1 2Cl3, 1 20W4A 1 2AY3, 1 2B53, A, 1 2CK3,
1 2006A, 1 2 0Q6B, 1 2GW6
ea
;:) ...
1 2AY7
1 2Cl3, 1 2 0W4A
1 2BQ6GTB 1 2 BQ6GTB / 1 2CU6, 1 2CU6, 1 20Q6A, B, 1 2GW6
1 2AZ7
1 2AZ7A, 1 2AT7*
1 2BQ6GTB/
CJ
1 2AZ7A
1 2AZ7*t, 1 2AT7
1 2CU6
1 2B06GTB, 1 2CU6,
Z
1 2B3
1 20Q6, 1 20Q6A,
>
1 2B4
1 2B4A
1 20Q66, 1 2GW6
...
1 2 64A
1 2B4*t
1 2BR3
u ... "
1 2B6M 1 2B7
1 2 B7Ml, 1 4A7, 1 4H7,
1 2BR7 1 2BR7A
1 2BR7A 1 26R7*t
1 4A7/1 2B7, 1 4A7ML,
1 2 653
1 2B53A, 1 2CK3, 1 2CL3,
�
1 4A7ML/ 1 2B7Ml
1 2 0W4
1 2B7ML
1 2B7, 1 4A7, 1 4H7, 1 4A7/ 1 2B53A
1 2B53, 1 2CK3, 1 2CL3,
1 267, 1 4A7ML,
1 20W3
1 4A7ML/ 1 2 67ML
1 2BT3
1 268
1 2 68GT
1 2 BT6
1 2AT6, 1 2AT6A, 1 2AV6,
1 2B8GT
1 2B8
1 2AV6A, 1 2BK6
1 2 BA6
1 2AU6, 1 2AU6A, 1 2 BA6A, 1 2BU6
1 2BF6
1 2 BZ6�
1 2BV7
1 2BY7, 1 2 BY7A, 1 20Q7
1 2BA6A
1 2AU6A, 1 2AU6*t,
12BV l l
1 2 BA6*t
1 2BW4
1 2BA7
1 2BX6
1 3EC7*
1 2B06
1 2BA6, 1 2BA6A
1 2BY3
1 2BE3
1 2 BE3A
1 2BY7
1 2BY7A, 1 2BV7, 1 20Q7
1 2BE3A
1 2BE3
1 2BY7A
1 2007, 1 2BY7*t,
1 2BE6
1 2BE6A, 1 2C56
1 2 8V7*t
1 2BE6A
1 2BE6*t, 1 2C56*t
1 2BZ6
1 2BA6�, 1 2BA6A�
� May not work in all circuits.
* Parallel-filament circuits.
34
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
1 2BZ7
1 2DQ6
1 2DQ6A, 12DQ6B,
1 2C5
1 2C5/1 2CU5, 1 2CU5,
1 2GW6
1 2 R5, 1 2AS5*, 1 2DM5* 1 2DQ6A
1 2 DQ6B, 1 2GW6
1 2C5/ 1 2CU5 1 2C5, 1 2CUS, 1 2RS,
1 2DQ6B
1 2GW6
1 2ASS*, 1 2 DMS*
1 2DQ7
1 2BY7A, 1 2BY7*t,
1 2C8
1 2C8Y
1 2BV7*t
1 2C8Y
1 2C8
1 2DS7
1 2DS7A
1 2CAS
1 2EHS, 1 2ASS*, 1 2EDS*,
1 2DS7A
1 2DS7
1 2FXS*
1 20T5
1 2CK3
1 2Cl3, 1 2DW4A
1 20T6
1 2Cl3
1 2CK3, 1 2DW4A
1 20T7
1 2AX7, 1 2AX7A, 1 20F7,
1 2CM6
702S, 702SA, 1 2AD7*,
1 2CN5
1 2BZ7*, 1 2DM7*
1 2CRS
1 20T8
1 2CR6 1 2CSS
12DWS, 1 2CM6*
1 2D U7 1 2 DV7
�
1 2CS6 1 2CT3
1 2BE6, 1 2BE6A
1 2 DV8 1 2 DW4A
1 2CK3, 1 2Cl3
..,
rn
1 2CT8
1 2 DWS
n
1 2CUS
1 2CS, 1 2C5/ 1 2CUS, 1 2R5, 1 2ASS*, 1 2DMS*
1 2 DW7 1 2DW8
7247
rn
1 2CU6
1 2BQ6GTB/ 1 2CU6,
1 2 DY8
Z
1 2BQ6GTB, 1 2DQ6,
1 2 DZ6
1 2EA6, 1 2EK6
C')
1 20Q6A, 1 2DQ6B, 1 2GW6
1 2DZ8 1 2ESGT
1 2FY8* 1 2JS, 1 2JSGT
-t C
1 2CX6
1 2EZ6
1 2EA6
1 2DZ6, 1 2EK6
1 2CY6
1 2EC8
rn '"
1 2EDS
1 2FX5, 1 2CAS*, 1 2 EHS*
1 2D4
1 2 D4A, 1 2AX4GTB,
1 2EF6
1 20M4, 1 20M4A, 1 2DQ4
1 2EG6 1 2EHS
1 2CAS, 1 2EDS*, 1 2FXS*
t-J
1 2D4A 1 2DBS 1 2DE8 1 2DFS
1 20M4, 1 2DM4A, 1 20Q4
1 2EK6 1 2EL6 1 2EM6 1 2 EN6
1 2DZ6, 1 2EA6 1 2L6GT, 1 2W6GT
N .I .. t-J C')
1 20F7
1 2AX7, 1 2AX7A, 1 2DT7,
1 2 EQ7
1 2 KL8�
702S, 702SA, 1 2AD7*,
1 2 EZ6
1 2CX6
1 2BZ7*, 1 2DM7*
1 2FS
1 2 FSGT
�
1 2DJ8
1 2FSGT
1 2FS
1 2DKS
1 2F8
1 2DK6
1 2FA6
1 2DK7
1 2FBS
1 2DL8
1 2DS7�, 1 20S7A�
1 2 FK6
1 2FM6
1 20M4
1 2 DM4A, 1 2D4A, 1 20Q4
1 2FM6
1 2FK6
1 2DM4A
1 2 FQ7
1 2DMS
1 1 CS, 1 2ASS*, 1 2CS*,
1 2FQ8
1 2CS/ 1 2CUS*, 1 2CU5*, 1 2 FR8
1 2RS*
1 2FT6
1 2AE6, 1 2AE6A
1 20M7
1 2A07*, 1 2AX7*,
1 2 FV7
1 2AX7A*, 1 2BZ7*,
1 2FX5
1 2EDS, 1 2EHS*
1 2DF7*, 1 20T7*, 7025*, 1 2FX8
1 2FX8A
702SA*
1 2FXBA
1 2FXB
1 2DQ4
1 2 FYB
1 2G4
1 2H4
� May not work in all circuits.
* Parallel�filament circuits.
t Series circuit not requiring controlled warm�up time.
3S
To Replace Use
To Replace Use
1 2G8
1 2S8
1 2S8G, 1 2S8GT
1 2G1 1
1 2SBG
1 2S8, 1 2SBGT
1 2GA6
1 2SBGT
1 2S8, 1 2SBG
1 2GC6
1 2SA7
'12SA7G, 1 2SA7GT,
1 2GE5
1 2SA7GT/G, 1 2SA7GTY,
1 2GJ5
1 2SA7Y, 1 2SY7,
1 2GN6
1 2SY7GT
1 2GN7
1 2GN7A, 1 2HG7*t
1 2SA7G
1 2SA7, 1 2SA7GT,
1 2 G N7A
1 2 HG7*t
1 2SA7GT/G, 1 2SA7GTY,
1 2GT5
1 2GT5A
1 2SA7Y, 1 2SY7,
1 2GT5A
1 2GT5
1 2SY7GT
1 2GV5 1 2GW6
12D06B
1 2SA7GT
1 2SA7, 1 2SA7G, . 1 1 2SA7GT/G, 1 2SA7GTY,
1 2H4
�
1 2H6
1 2SA7Y, 1 2SY7, 1 2SY7GT
1 2HE7
IC..).
1 2HG7 1 2Hl5
1 2GN7*, At
Z
1 2HL7
'" N -
1 2HUB 1 2J5
1 2J5GT
COI
1 2J5GT
1 2J5
C)
1 2J7
1 2J7G, GT, GT/G
N -
1 2J7G
1 2J7, GT, GT/G
1 2J7GT
1 2J7, G, GT/G
1 2SA7GT/G 1 2SA7GTY 1 2SA7Y 1 2SC7
1 2SA7, 1 2SA7G, 1 2SA7GT, 1 2SA7GTY, 1 2SA7Y, 1 2SY7, 1 2SY7GT
1 2SA7, 1 2SA7G, 1 2SA7GT, 1 2SA7GT/G, 1 2SA7Y, 1 2SY7, 1 2SY7GT
1 2SA7, 1 2 SA7G, 1 2SA7GT, 1 2SA7GT/G, 1 2SA7GTY, 1 2SY7, 1 2SY7GT
1 2J7GT/G 1 2J7, G, GT
1 2SF5
1 2SF5GT
'w"
I:Q
1 2J8 1 2JB6
1 2JB6A
1 2J B6A
1 2JB6
I-
1 2JF5
1 2SF5GT 1 2SF7 1 2SF7GT 1 2SF7Y
1 2SF5 1 2SF7GT, 1 2SF7Y 1 2SF7, 1 2SF7Y 1 2SF7, 1 2SF7GT
C)
1 2JN6
1 2J N6A
Z
1 2JN6A
1 2JN6
:>
1 2JNB
w U w a::
1 2JQ6 1 2JS6 1 2JT6 1 2JT6A
1 2JT6A 1 2JT6
1 2SG7 1 2SG7GT 1 2SG7Y 1 2SH7 1 2SH7GT 1 2SJ7 1 2SJ7GT
1 2SG7GT, 1 2SG7Y 1 2SG7, 1 2SG7Y 1 2SG7, 1 2 SG7GT 1 2SH7GT 1 2SH7 1 2SJ7GT 1 2SJ7
�
1 2K5 1 2K7G
1 2K7GT, GT/G
1 2SK7
1 2SK7G, 1 2SK7GT, 1 2SK7GT/G, 1 2SK7GTY,
1 2K7GT
1 2K7G, GT/G
1 2SK7Y
12K7GT/G 12K7G, GT
1 2SK7G
1 2SK7, 1 2SK7GT,
1 2K8
12KBGT, 1 2K8Y
1 2SK7GT/G, 1 2SK7GTY,
1 2K8GT
12K8, 1 2K8Y
1 2SK7Y
1 2K8Y
1 2 K8, 1 2 K8GT
1 2SK7GT 1 2SK7, 1 2SK7G,
1 2Kl8
1 2SK7GT/G, 1 2SK7GTY,
1 2 l6GT
12 EN6, 1 2W6GT
1 2SK7Y
1 2 l BGT
1 2SK7GT/G 1 2SK7, 1 2SK7G, 1 2SK7GT,
1 2MD8
1 2SK7GTY, 1 2SK7Y
1 2Q7
1 2Q7G, GT, GT/G, 1 2G7G 1 2SK7GTY 1 2SK7, 1 2SK7G, 1 2SK7GT,
1 2Q7G
1 207, GT, GT/G, 1 2G7G
1 2SK7GT/G, 1 2SK7Y
1 2Q7GT
1 207, G, GT/G, 1 2G7G
1 2SK7Y
1 2SK7, 1 2SK7G, 1 2SK7GT,
1 2Q7GT/G 1 207, G, GT, 1 2G7G
1 2SK7GT/G, 1 2SK7GTY
1 2R5
1 2Sl7GT
1 2S7
1 2SN7GT 1 2SN7GTA, 1 2 SX7GT
� May not work in a l l circuits.
* Para llel�fi l a ment circuits.
36
t Series circuit not requiring controlled warm�up time.
To Replace Use
To Replace Use
1 25N7GTA
1 4A 5
1 25Q7
1 25Q7G, 1 25Q7GT,
1 4A7
1 2 B7, 1 2B7Ml, 1 4H7,
1 25Q7GT/G
1 4A7/ 1 2B7, 1 4A7Ml,
1 25Q7G
1 25Q7, 1 25Q7GT,
1 4A7Ml/ 1 2B7Ml
1 25Q7GT/G
1 4A7Ml
1 2 B7, 1 2 B7Ml, 1 4A7,
1 25Q7GT 1 25Q7, 1 25Q7G,
1 4A7/ 1 2B7, 1 4A7Ml/
1 25Q7GT/G
1 2B7Ml,
1 25Q7GT/G 1 25Q7, 125Q7G,
1 4H7
1 25Q7GT
1 4A7/1 2B7 1 2B7, 1 2B7Ml, 1 4A7,
125R7
1 25R7GT, 1 25W7,
1 4H7, 1 4A7Ml,
1 25W7GT
1 4A7Ml/ 1 2 B7Ml
1 25R7GT
1 25R7, 1 25W7,
1 4A7Ml/
1 25W7
1 25W7GT 1 25W7GT, 1 25R7,
1 2 B7Ml
1 2B7, 1 2B7Ml, 1 4A7, 1 4A7Ml, 1 4A7/ 1 2B7,
�
1 25W7GT 1 25X7GT 1 25Y7
1 25R7GT 1 25W7, 1 25R7, 1 25R7GT 1 25N7GT, 1 25N7GTA 1 25Y7GT, 1 25A7, 1 25A7G,
1 4AF7 1 4B6 1 4B8
1 4H7 XXO, 1 4N7*
' "
n '"
1 25A7GT, 1 25A7GT/G, 1 4B11 1
!S
1 25A7GTY, 1 25A7Y
1 4BR l l
Z
1 25Y7GT 1 25Y7, 1 25A7, 1 25A7G,
1 4C5
1 2T10
1 25A7GT, 1 25A7GT/G, 1 25A7GTY, 1 25A7Y
1 4C7 1 4DA7 1 4E6
-t c:
W
1 2 U7
1 4E7
1 4R7
''""
1 2 V6GT
1 2A6*�, 1 2A6G*�,
1 4F7
1 2A6GT*�, 1 2A6GTY*�, 1 4F8
1 2W6GT
1 2A6Y*� 1 2 EN6, 1 2l6GT
1 4G6 1 4GT8
1 4GT8A, 1 4JG8
... 'to".)
1 2X3
1 4GT8A
1 4GTBt, 1 4JG8t
z
1 2X4 1 2Z3
1 4Z3
1 4H7
1 2B7, 1 2B7Ml, 1 4A7, 1 4A7/ 1 2B7,
..., -t
1 2Z5 13
6Z5, 6Z5/ 1 2Z5 5X3, 80, 83V, 88
1 4A7Ml, 1 4A7Ml/ 1 2 B7ML
.I..
1 3CM5
1 4J7
1 457
'"
1 3CW4 1 30E7
1 5EW7
1 4JG8 1 4K7
1 4GT8, 1 4GT8A
W
C...
1 30R7
1 3 F07, 1 3FR7
1 417
1 3EC7
1 2BX6*
1 4N 7
1 4AF7*
1 3EM7
1 5EA7
1 4Q7
�
1 3F07
1 3FR7
1 4R7
1 4E7
1 3FM7
1 457
1 4J7
1 3FR7
1 3F07
1 4V7
1 3GB5
1 4W7
1 3GC8
1 4X7
1 3GF7
1 3GF7A
1 4Y4
1 3GF7A
1 3GF7
1 4Y7
1 3J l 0
1 3Z 1 0/1 3J 1 0
1 4Z3
1 2Z3
1 3JZ8
1 3JZ8A
15
1 3JZ8A
1 5A6
13Vl0
1 2AE1 0
1 5A8
13Z10
1 3Z 1 0/13J l 0
1 5AB9
1 7AB9
14
1 5AFl l
15BOl l, A
1 4A4
15B01 1
1 5B01 1 A, 1 5AF 1 1
� May not work in a l l circuits,
� Paral le l -filament circuits,
t Series circuit not requiring controlled warm�up time.
37
To Replace Use
To Replace Use
1 5801 1A
1 5 80 1 1 , 1 5AF 1 1
1 7853
1 7853A, 1 7CK3, 1 7CL3,
1 5CW5
1 70W4A
1 5008
1 7B53A
1 7853, 1 7CK3, 1 7CL3,
1 5EA7
1 3EM7
1 70W4A
1 5EW6
1 78W3
1 7AX3*, 1 7BE3*, A*,
1 5EW7
1 9CG3
1 5FM7
1 7BZ3
1 7BE3, A
1 5FY7
1 7C5
1 7CU5, 17R5
1 5HB6
1 7C8
1 5KY8 1 5KY8A
1 5KY8A, 1 5MX8 1 5 KY8, 1 5MX8
1 7C9 1 7C9A
1 7C9A
1 7C91
1 5LE8
1 7CA5
1 5MF8
1 7CK3
1 7CL3, 1 70W4A
�
1 5MX8 16
1 5 KY8A 1 6B, 8 1
1 7CL3 1 7C04
1 7CK3, 1 70W4A 1 70E4
CO N
1 6A5 1 6A8
1 5CW5
"""I
" ...
1 6AK9 1 6A03
I
1 68
1 6, 81
<.C.( .
1 6B01 1
...
16BX1 1
C
I:Q
1 6GK6
in
1 6GK8
1 7CT3 1 7CU5 1 704
1 704A 1 70E4 1 70M4 1 70M4A
1 7C5, 1 7R5 1 704A, 1 7AX4GTA,
1 70M4, 1 70M4A, 1 7 D04 1 70M4, 1 70M4A, 1 7004 1 7C04 1 70M4A, 1 704A, 1 7004
1 6GY5 1 6KA6
1 7004 1 7006
1 7006A, 1 70068, 1 7GW6
Iw n
1 6 LU8 1 6LU8-A
1 6LU8-A, 1 6MY8 1 6LU8, 1 6MY8
1 7006A 1 70068
1 70068, 17 GW6 1 7GW6
I:Q
::;)
1 6MY8
1 6LU8-A
...
1 6Y9
1 70W4A 1 7EW8
1 7CK3, 1 7CL3
C) Z
:>
17 1 7A8 1 7A89 l 7AB1 0
1 9EA8, 1 9EA8A 1 5A89
1 7GE5 1 7GJ5 1 7GJ5A 1 7GT5
1 7GJ5A 1 7GJ5 1 7GT5A
w
1 7AV5GA
1 7GT5A
1 7GT5
U w
1 7AX3
1 7GV5
Ill:
1 7AX4GT 1 7AX4GTA, 1 704, 1 704A, 1 7GW6
1 7006B
1 70M4, 1 70M4A,
1 7H3
�
1 7004
1 7HC8
1 7AX4GTA 1 704, 1 704A, 1 70M4,
1 7J B6
1 7JB6A
1 70M4A, 1 7004
1 7J B6A
1 7JB6
1 7AY3
1 7AYJA, 1 7B53, A, 1 7CK3, 1 7JF6
1 7CL3, 1 70W4A
1 7JG6
1 7JG6A, 1 7KV6
1 7AY3A
1 7AY3, 1 7B53, A, 1 7CK3,
1 7JG6A
1 7JG6, 1 7KV6
1 7CL3, 1 70W4A
1 7J K8
1 7BE3
1 7BE3A
1 7JM6
1 7JM6A
1 7BE3A
1 7BE3
1 7JM6A
1 7JM6
1 7BFl l
1 7BF1 1 A
1 7JN6
1 7J N6A
1 7BFl lA
1 7BF1 1
1 7J N6A
1 7JN6
1 7BH3
1 7BH3A
1 7J06
1 7BH3A
1 7BH3
1 7JR6
1 7JG6, A
1 7B06GTB 1 7006, A, B, 1 7GW6
1 7JT6
1 7JT6A
1 7BR3
1 7JT6A
1 7JT6
1 7JZ8
1 7JZ8A
� May not work in all circuits.
* Paral lel-filament circuits.
38
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
1 7JZBA
1 9HVB
1 7KV6
1 7KV6A
1 9J6
1 7 KV6A
1 9J NB
1 9CLBA, 1 9CLBB
1 7L6GT
1 7W6GT
1 9KGB
1 7 LDB
1 9Q9
1 7 R5
1 9TB
1 9TBA, 1 9CB
1 7W6GT
1 7L6GT
1 9TBA
1 9TBt, 1 9C5t
1 7X l 0
1 9V5
1 7Z3
1 9X3
lB
1 9X5
l SA5
1 9Y3
1 9X3
l SAJ 1 0
20
l S DZS
20AQ3
l S FW6
l SFW6A, l SGD6, l SG06A 20EQ7
l SFW6A
l SGD6A, l SFW6t, l SGD6t 20EW7
1 9 EW7
�
l S FX6
l SFX6A
20EZ7
l SFX6A l S FY6
l S FX6t l SFY6A, l SGE6, l SGE6A
20JS 2OLF6
"'
l SFY6A
l SGE6A, l SFY6t, l SGE6t 2 1 A6
2 1 B6
n "'
l SGB5 l SGD6
1 8G06A, 1 8 FW6, 1 8 FW6A
2 1 A7 2 1 B6
2 1 A6
l SGD6A
1 8FW6A, 1 8GD6t,
2 1 EX6
25CD6GB
Z
l SFW6t
2 1 GY5
Gl
1 8GE6
1 8GE6A, l S FY6, 1 8FY6A
2 1 HB5
21 HB5A
-I
l SGE6A l SGV8
1 8FY6A, 1 8GE6t, l SFY6t
2 1 HB5A 2 1 HD5
21 HB5
c.":"'
l SHB8
2 1 HJ5
Ut
19
2 1 JS6A
1 9AQ5
2 1 JV6
...
1 9AU4 1 9AU4GT
1 9A U4GT, 1 9AU4GTA, 1 7CQ4, 1 7DE4
1 9AU4, 1 9A U4GTA,
2 l JZ6 2 1 KA6 2 1 KQ6
'-
CN D
1 7CQ4, 1 7DE4
2 l LG6
2 1 LG6-A
,..
1 9AU4GTA 1 9BG6G 1 9BG6GA
1 9BG6GA 1 9BG6G
2 l LG6-A 2 1 LRB 2 1 LUB
2 1 LG6 2 1 MY8
".
,..
1 9C5 1 9CG3
1 9T5, 1 9T8A
2 1 MY8 22
21 LUS
�
1 9CLSA
1 9CLSB, 1 9J N8
22BH3
22BH3A
1 9CLSB
1 9CL8At, 1 9JNSt
22BH3A
22BH3
1 9C54
22BW3
25CG3
1 9D8
2 2 D E4
1 9DE3
22JF6
22KM6
190E7
1 9EW7, 20EW7
22JG6
22JG6A, 22JR6
19DK3
22JG6A
22JG6, 22JR6
1 90Q3
22JR6
1 9EA8
1 9EA8A, 1 7AS
2 2 J U6
1 9 EA8A
1 9EASt, 1 7ASt
2 2 KM6
1 9EW7
20EW7
2 2 KV6
1 9EZ8
23JS6A
1 9FX5
23MB6
1 9GQ7 19HR6 1 9H56
23Z9 24A
24S, 35�, 35/51 �, 35S�, 51 S�, 35S/51 S�
� May not work in a l l circuits.
� Para l lel-filament circuits.
t Series circuit not requiring controlled warm�up time.
39
To Replace Use
To Replace Use
24BF1 1
2SC06GB 2 1 EX6
24GA7
2SCG3
24JE6A
24LQ6
2SCK3
24JZ8
2SJ Z 8
2SCM3
24LQ6
24JE6A
2SCR5
24L26
2SCT3
245
24A, 3S�, 3S/S1 �, 5 1 �,
25CU6
2SBQ6GTB/25CU6,
3S5�, 5 1 5�, 355/S1 5�
2SBQ6GTB, 2S0Q6, A
25
25S, 1 B5, 1 B5/25S
2504
2SA6
2SA6G, 25A6GT,
2508GT
25A6GT/G, 25A6MG
2S0K3
25A6G
25A6, 25A6GT,
250K4
2SA6GT/G, 25A6MG
250N6
25C06GB, 21 EX6
�
25A6GT
2SA6, 25A6G, 2SA6GT/G, 2S0Q6
2S0Q6A
25A6MG
2S0Q6A
2SA6GT/G 25A6, 2SA6G, 2SA6GT,
2S0TS
2SA6MG
25ES
11'1
2SA6MG
25A6, 2SA6G, 2SA6GT,
2SEC6
25C06GB, 21 EX6
N
2SA6GT/G
2SEHS
2SCA5
11'1
N ..I .
...
25A7G 25A7GT 25A7GT/G
25A7GT, 25A7GT/G 25A7G, 2SA7GT/G 25A7G, 25A7GT
25F5 25F5A 25FY8
2SFSA 2SFSt
Yo
all N
2SAC5G
25ACSGT, 25ACSGT/G
25AC5GT 25AC5G, 2SACSGT/G
2SAC5GT/G 25AC5G, 25ACSGT
25GF6 25HXS 25JQ6
25AV5GA 25AVSGT
25JZ8
24JZ8
'..",
25AV5GT 25AX4GT
25AV5GA 2S04
all ::;) t-
2SB5 2SB6
25B6G, 25B6GT
25B6G
25B6, 25B6GT
Z
:>
25B6GT 2SB8 2SB8GT
25B6, 25B6G 25B8GT 25B8
25L6 25l6G 25L6GT 25L6GT/G
25L6G, 25L6GT, 25l6GT/G, 2SW6GT
25L6, 2SL6GT, 25l6GT/G, 25W6GT
25l6, 25l6G, 25l6GT/G, 25W6GT
25l6, 25L6G, 2SL6GT, 25W6GT
..,
2SBK5
25l7G
25L7GT, 25L7GT/G
.U.,
25BQ6GA 25BQ6GTB, 25BQ6GTB/
25L7GT
25l7G, 25l7GT/G
cc:
25CU6, 25CU6, 250Q6, 25L7GT/G 25L7G, 25l7GT
250Q6A
25N6
25N6G
�
25BQ6GT 25BQ6GA, 25BQ6GTB,
25N6G
2SN6
2SBQ6GTB/25CU6,
255
25, 1 B5, 1 B5/255
25CU6, 250Q6, 250Q6A 25U4GT
25AX4GT, 2504, 25W4GT
25BQ6GTB 25BQ6GTB/25CU6, 25CU6, 25W4GT
25AX4GT, 2504, 25U4GT
250Q6, A
2SW6GT
25L6, 25L6G, 25L6GT,
25BQ6GTB/
25L6GT/G
2SCU6 25BQ6GTB, 25CU6,
25X6GT
250Q6A
25Y4
25Y4GT
25BR3
25Y4GT
25Y4
25C5
25Y5
2SZ5, 25Z5MG
25C6G
25C6GA
25Z3
25C6GA
25C6G
25Z4
25Z4GT
25CA5
25C5, 25EH5
25Z4GT
25Z4
25C06G
25C06GA, 25C06GB,
25Z5
25Z5MG, 25Y5
250N6, 21 EX6
25Z5MG
25Z5, 25Y5
25C06GA 2SCD6GB, 250N6, 2 1 EX6
� May not work in all circuits.
� Parallel-filament circuits_
40
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
25Z6
25Z6G, 25Z6GT,
3l J56C
3 1 J 56A
25Z6GT/G, 2SZ6MG
3 1 lQ6
2SZ6G
25Z6, 25Z6GT, 25Z6GT/G, 3 1 lR8
2SZ6MG
3 1 lZ6
25Z6GT
25Z6, 2SZ6G, 2SZ6GT/G,
32
1 A4, 1 A4P, 1 A4T, 1 B4,
25Z6MG
1 B4G, 1 B4P, 1 B4T, 34,
2SZ6GT/G 25Z6, 25Z6G, 25Z6GT,
95 1 , l C4*, l K4*
25Z6MG
32A8
2SZ6MG
25Z6, 2SZ6G, 2SZ6GT,
32 ETS
32ET5A, 34GOS, 34G05A
2SZ6GT/G
32ET5A
32ETSt, 34GOSA
26
32GA7
26A6
26CG6
32HQ7
26A7
26A7GT
32 l7GT
26A7GT
26A7
33
26B6
2606
33GT7
26BK6 26C6
33GY7 3 3 H E7
33GY7A
�
26CG6 2606 26E6G 26HUS 26lW6 26lX6 26ZS
26A6 26B6
3 3 GY7 A 33JR6
33GY7
m "
33JV6 34
l A4, l A4P, l A4T, l B4, 1 B4G, 1 B4P, 1 B4T, 32,
n m
951 , l C4*, l K4*
Z
34C03
G')
27 27A 27GBS 27KG6
275, S6, S65, 27A* 27*, 275* 28GBS
34CE3
-C
34CM3
C
34GOS 34GOSA
34GOSA, 32ETS, 32ETSA 32ETSA, 34GOSt, 32ETSt
.m"
'"
275
27, S6, S65, 27A*
34R3
2807 28EC4 28GB5 28HA6 28H05 2BZ5 29 29GK6 29KQ6
27GB5 30HOS
29lE6
35
3S5, 35/5 1 , 3S5/5 1 5, 5 1 ,
S 1 5, 24A�, 245�
VI
35/S1
3S, 355/S 1 5, 5 1 , 3S5, S 1 5,
N
35A3 35AS
24A�, 245� 3SC3 3SA5LT
tW VI
'"
35A5LT
3SA5
35B5
�
35C3
35A3
29lE6
35C5
3SC5A, 30A5
30
35C5A
3SC5t, 30A5t
30A5
35C5, 35C5A
35C06GA
30AE3
3505
30AG l l
35DZB
30CW5
35EH5
3SEH5A
30H05
28HOS
3SEH5A
35EH5t
30HJ5
35FN5
30JZ6
35Gl6
30K06
35HB8
30MB6
35L6G
35L6GT, 35L6GT/G
31
35L6GT
35L6G, 35L6GT/G
3 1 A3
35l6GT/G 35l6G, 35l6GT
3 1 A1 1 0
35lR6
3 1 BX7GT
355
355/5 1 5, 51 5, 35/5 1 , 35,
3 1 JS6A
3 1 JS6C
5 1 , 24A�, 24S�
May nor work in .11 circuil�.
* Parallel-filamenl circuil�.
t Series circuit not requiring controlled warm�up time.
41
To Replace Use
To Replace Use
3SS/S1 S
3SS, S I S, 3S/S 1 , 3S, S I ,
45
4SA
24A�, 24S�
4SA
4S
3 SW4
3SW4A
4SAS
3SW4A
3SW4t
4S6S
3 SY4
4SZ3
3SZ3
35Z3LT
45ZSGT
40ZS, 40ZS/4SZSGT,
35Z3LT
35Z3
40Z5GT
3SZ4
35Z4GT
46
3 5Z4GT
35Z4
47
35Z5
35Z5G, 35Z5GT,
48
35Z5GT/G
49
35Z5G
35Z5, 35Z5GT,
50
35Z5GT/G
50Al
35Z5GT
35Z5, 3SZ5G,
50A5
35Z5GT/G
50AX6G
50AX6GT
�
3SZ5GT/G 3SZS, 35ZSG, 3SZSGT
SOAX6GT SOAX6G
3SZ6G
3SZ6GT
N
1ft
3SZ6GT
3SZ5
J.
36
36A, 64*, 64A*
...
36A
36, 64*, 64A*
1ft
36AM3
36AM3A, 36AM3B
...
1ft
36AM3A 36AM3, 36AM36
S06S S08KS S06M8
50CS SOCSA SOC6G
50CSA socst 50C6GA
1ft
CW)
36AM3B 36K06
36AM3t, 36AM3At 40K06t
50C6GA SOCA5
50C6G 50EH5, 50EHSA
36MC6
50C06G
III
37
""
m
::J
37A
I-
37A, 76, 56A*, S6AS*, 67*, 67A*
37, 76, S6A*, S6AS*, 67*, 67A*
SOOC4 SOES SOEHS SOEHSA
SOEHSA, SOCAS SOEHSt, SOCASt
38
38A
Z
38A
38
:>
38A3
3 8 H E7
""
U
""
38HK7 39
38HE7 39/44, 44
cc:
39/44
39, 44
50FAS SOFE5 50FK5 50FY8 50GY7 50GY7A 50HC6
50GY7A
40
�
40Al
50HK6 50HN5
50HC6
4062
50JY6
40FR5
50L6G
50L6GT
40K06
50L6GT
50L6G
40KG6
50X6
40Z5
40Z5GT, 40ZS/45Z5GT,
50Y6G
50Y6GT, 50Y6GT/G
45Z5GT
50Y6GT
50Y6G, 50Y6GT/G
40Z5/45Z5GT 40Z5, 40Z5GT, 45Z5GT
50Y6GT/G 50Y6G, 50Y6GT
40Z5GT
40Z5, 40Z5/45Z5GT,
50Y7GT
50Z7G, 50Z7GT
45Z5GT
50Z6G
50AX6G, SOAX6GT
41
42*
50Z7G
50Z7GT, 50Y7GT
42
41 *
50Z7GT
50Z7G, 50Y7GT
42EC4
51
5 1 5, 35, 35/5 1 , 355/5 1 5,
42KN6
355, 24A�, 24S�
43
43MG
515
5 1 , 35, 35/51 , 35S/51
43MG
43
355, 24A�, 24S�
44
39, 39/44
52
� May not work in all circuits.
� Parallel�filament circuits.
42
t Series circuit not requiring controlled warm-up time.
To Replace Use
To Replace Use
53
83V
53HK7
58HE7
84/6Z4
6Z4, 98
55
555
G84
2Z2, 2Z2/G84
55N3 555 56 56A
55 565, 27, 275 56A5, 67, 67A, 37*,
85 85A5 855 88
855
85 82, 82V
37A*, 76*
89
89Y
56A5
56A, 67, 67A, 37*, 37A*, 89Y
89
56R9 565
76* 56, 27 275
VR90 95 96
OB3, 083A 2A5
57
575
98
84/6Z4, 6Z4
57A
57A5, 6(6*, 77*
V99
57A5
57A, 6(6*, 77*
X99
575 58 58A5 58HE7 585 59
57 585 6D6*, 78*
58
V R 1 05 1 1 2A
0(3, 0(3A 1 2A
�
1 1 7L7GT
1 1 7l7/M7GT, 1 1 7M7GT
1 1 7L7/M7GT 1 1 7L7GT, 1 1 7M7GT
"'
1 1 7M7GT 1 1 7L7GT, 1 1 7L7/M7GT
0
1 1 7N7GT 1 1 7P7GT
"'
59B
1 1 7P7GT
1 1 7N7GT
<
60E3 60EH5
1 1 7Z3 1 1 7Z4GT
Z
60FX5
1 1 7Z6G
1 1 7Z6GT, 1 1 7Z6GT/G
60Hl5 64
64A, 65, 65A, 36*, A*
1 1 7Z6GT
1 1 7Z6G, 1 1 7Z6GT/G
1 1 7Z6GT/G 1 1 7Z6G, 1 1 7Z6GT
-t C
CI:I
64A
64, 65, 65A, 36*, 36A*
VR 1 50
OD3, OD3A
"'
VI
65
65A, 64, 64A
182B/482B 71*, 71 A*, 71 B"
65A
65, 64, 64A
1 83/483
67
67A, 56A, 56A5, 37*,
485
37A*, 76*
807
67A
67, 56A, 56A5, 37*,
950
37A*, 76*
951
l A4, l A4f>, l A4T, l B4P,
68
6BA
1 B4G, 1 B4T, 32, 34,
W'.I "..
,....
68A
68
70A7GT
1 (4*, l K4*
5642
�
70l7GT
5879
71
71A*, 7 1 B*
5881
6l6GC, 758 1 , 758 1 A
71A
7 1 *, 7 1 B*
6080
6A57G, 6A57GA, 6A57GT
71B
7 1 *, 71A*
6267
75
755
6550
755
75
6973
VR75
OA3, OA3A
7025
7025A, 1 2AX7, 1 2AX7A,
76
37, 37A, 56A*, 56A5*,
1 2DF7, 1 2DT7, 1 2AD7*,
67*, 67A*
1 2BZ7*, 12DM7*
77
6(6, 57A*, 57A5*
7025A
7025, 1 2AX7, 1 2AX7A,
78
6D6, 58A5
1 2DF7, 1 2 DTl, 1 2AD7*,
79
1 2BZ7*, 1 2DM7*
80
5X3, 1 3, 83V, 88
7027
7027A
81
1 6, 1 6B
7 1 89
71 89A
82
82V
7 1 89A
82V
82
7 1 99
83
5Z3
7247
1 2DW7
� May not work in all circuits.
* Parallel�filament circuits.
t Series circuit not requiring controlled warm�up time.
43
To Replace Use
To Replace Use
7355 7408
7534 7543 7581 758 1 A 7591 7591 A 7687 7695 7754 7867
6V6, 6V6G, 6V6GT, 6V6GTA, 6V6GT/G, 6V6GTY, 6V6GTX, 6V6GX, 6V6Y
6AU6, 6AU6A 758 1 A, 6L6GC 759 1 A
6EX6*
7868 8278 9001 9002 9003 BA BH BR XXB XXD XXFM XXL X 1 55
BA
3C6 1 4AF7 7X7 7A4 6BC8, 6BQ7, A, 6BS8, 6BZ7,
6BZ8, 6BK7*, 6BK7A*, 6BK7B*
�
.,..
..,... .
><I
ADDITIONAL SUBSTITUTES
VI
VI
CW)
...
VI W lID
:J t-
C) Z
:>
w u w a::
�
44
Section 2 PICTURE-TUBE SUBSTITUTES
This listing is nu merical-alphabetical, with the substitutes shown in the right-hand colu m n . Substitutes are not recom mended for some types and for this reason are not shown in many instances. The listing of a certain tube type as a substitute for another one does not necessarily mean the reverse is true. Always refer to the left-hand column for the original type n umber, then find the substitute in the ri ght-ha nd column.
Minor changes may be n ecessary when a picture tube is substi tuted. These changes are i ndicated by various symbols followi n g the type n umber. The key to these symbols i s given below.
Be absolutely certain to refer to this key.
A l ist ing of those tubes that requ ire odd fi lament voltages
(other than 6.3 volts) is given on page 62. Those tubes having low Eg2 potentials are I isted on page 6 1. Th is is a handy reference
when sett ing up your pictu re-tube testing and re j u venating equip m e n t.
Key to Footnotes :
* Omit ion trap. ** Add ion trap.
# Connect pin 6 to pin 2 or pin 1 0.
a May require longer or shorter H.V. lead.
I Paral lel-fi lament circuits only. 2 In some cases it may be necessary to reverse the red and green cathode leads
to achieve proper balance.
6 Add high-voltage fi lter capacitor. 7 Ground the aquadag coating. S Change the anode connector. 9 Change the ion trap.
4S
To Replace Use
To Replace Use
2EP4
1 1 HP4A
1 1 HP4
7RP4
7RP4A
1 1 JP4
7 R P4A 8AP4
7RP4 8AP4A
1 1 KP4 1 1 lP4
1 1 CP41
8AP4A
BAP4
1 1MP4
7 R P4A
BHP4
BMP4
1 1 QP4
8lP4
1 1 RP4
1 1 UP4
8MP4
1 1 SP22
1 1 WP22
9ACP4
9AGP4
1 1 TP4
9AGP4
9ACP4
1 1 UP4
1 1 RP4
9QP4
9QP4A
1 1WP22
9QP4A
9QP4
1 2AYP4
1 2AZP41 , 1 2 BAP41 ,
9SP4
1 2BSP41
9TP4
1 2AZP4
1 2AYP41 , 1 2BAP41 ,
9UP4
9VP4!230DB4
1 2 BSP41
�
9VP4
9WP4
1 2BAP4
1 2BSP4, 1 2AYP41 , 1 2AZP41
A.
IoU
9YP4 1 0ABP4
1 0ABP4A, B, C, 1 0AEP41
1 2BEP4 1 2BFP4
Q
1 0ABP4A 1 0ABP4, B, C, 1 0AEP41
1 2BGP4
N
1 0ABP4B 1 0ABP4, A, C, 1 0AEP41
1 2BJP4
-
.AJ..
IoU
N
1 0ABP4C 1 0ADP4 1 0AEP4 1 0AJP4
1 0ABP4, A, B, 1 0AEP41 1 0ABP41 , A I, B l , Cl
1 2BKP4 1 2BlP4
1 2BlP4A, 1 2BQP4, 1 2DHP4n, 1 2DQP4n, 1 2VABP4a
1 2BQP4, 1 2DHP4a
1 0ARP4
1 2BMP4
1 2CDP4, A
lit IoU
ID
::;) ...
1 0ASP4 1 0BP4
1 0BP4A
1 0BP4A, C9, D9, 1 0FP4*,
1 0FP4A* 1 0BP4, C9, D9, 1 0FP4*, A*
1 2BNP4 1 2BNP4A 1 2BQP4 1 2BRP4
1 2 BN P4A 1 2BNP4 1 2BKP4, 1 2BlP4, 1 2D H P4"
IoU
1 0BP4C
1 0BP4D, 1 0BP49, A9,
1 2BSP4
1 2AYP4, 1 2AZP4, 1 2BAP4
cr::
1 0FP4*, A*
1 2BTP4
::;)
1 0BP4D
1 0BP4C, 1 0BP49, A9,
...
U A.
1 0CP4 1 0DP4
1 0FP4*, A*
1 2BUP4 1 2BUP4A 1 2BUP4B 1 2BUP4C
12BUP4A, B 1 2BUP4,B,C, 1 2DHP4 1 2BUP4,A,C, 1 2DHP4 1 2BKP4
�
1 0EP4
1 0BP4A8, 1 0CP4* , 1 OFP4*8, A *8
1 2BVP4 1 2BZP4
1 0FP4
1 0FP4A, 1 0BP4**, A**,
1 2CBP4
1 0FP4A
C**, 0**
1 2CDP4
1 0FP4, 1 0BP4**, A**, Coo, 1 2CEP4
1 2BMP4
D**
1 2CFP4
1 2CNP4, A
1 0MP4
1 0MP4A
1 2CHP4
1 0MP4A
1 0MP4
1 2CNP4
1 2CNP4A, 1 2CFP4
1 0RP4
1 2CNP4A 1 2CNP4, 1 2CFP4
1 0VABP22
1 2CP4
1 1 AP4
1 1 HP4
1 2CQP4
1 2BKP4
1 1 BP4 1 1 CP4
1 1 HP4 1 1 lP41
1 2CSP4 1 2CTP4
1 1 DP4 1 1 EP4 1 1 FP4
1 1 FP41 1 1 EP41
1 2CVP4 1 2CWP4 1 2DCP22
1 1 GP4
1 1 MP41
1 2CZP4
1 1 HP4
1 1 HP4A
1 2DEP4
46
To Replace Use
To Replace Use
12DFP4
1 4AUP4
1 4AWP4, 1 4ARP41
1 2DGP4
1 4AVP4
1 4ASP4
1 2D H P4
1 2BKP4, 1 2BlP4a,Aa,
1 4AWP4
1 4A U P 4
1 2BQP4a, 1 2BUP4a,AR, 1 4BCP22
1 2VABP4
1 4BDP4
1 2D K P4
1 4BP4
14BP4A, 1 4CP4, A, 1 4EP4,
1 2DMP4
1 4CP4B*
1 2DQP4
1 2BKP4, 1 2 DHP4,
1 4BP4A
1 4BP4, 1 4CP4, A, 1 4EP4,
1 2VABP4R
1 4CP4B*
1 2J P 4
1 2RP4**, 1 2QP4**,
1 4CP4
1 4CP4A, 1 4BP4, A, 1 4EP4,
1 2QP4A * *
1 4CP4B*
12KP4
1 2KP4A, 1 2ZP4**,
1 4CP4A
1 4BP4, A, 1 4CP4, 1 4EP4,
1 2ZP4A**
1 4CP4B*
1 2KP4A
1 2KP4, 1 2ZP4**,
1 4CP4B
1 4CP4**, A**, 1 4BP4**,
1 2lP4
1 2ZP4A** 1 2lP4A, 1 2lP4C, 1 2K P4*,
1 4DP4
A**, 14EP4** 1 4CP47, 9, A7, 9,
�
1 2KP4A*, 1 2ZP49,
1 4EP47, 9, 1 4FP49,
1 2ZP4A9
1 4UP4*
1 2lP4A
1 2lP4, 1 2lP4C, 1 2KP4*, 1 2KP4A*, 1 2ZP49, 1 2ZP4A9
1 4EP4 1 4GP4 1 4HP4
1 4BP4, A, 1 4CP4, A, B*
0 -t c:
1 2 lP4C
1 2lP4, 1 2lP4A, 1 2KP*,
1 4KP4
1 4KP4A
m
1 2KP4A*, 1 2ZP49,
1 4KP4A
-t
1 2ZP4A9
1 4NP4
1 4NP4A, 1 4RP4, A, 1 4SP4,
c:
1 2QP4
1 2QP4A, 1 2RP4, 1 2J P4*
1 4WP4*, 1 4X P41 , AI,
m m
1 2Q P4A
1 2QP4, 1 2R P4, 1 2JP4*
1 4Z P4*
V'
1 2RP4
1 2QP4, 1 2QP4A, 1 2J P4*
1 4NP4A
1 4 NP4, 1 4RP4, A, 1 4SP4,
1 2TP4 1 2UP4 1 2UP4A 1 2UP4B 1 2VABP4
1 2VAHP22 1 2VP4 1 2VP4A 1 2WP4
1 2UP4A, 1 2UP4B9 1 2UP4, 1 2UP4B9 1 2UP49, 1 2UP4A9 1 2BKP4R, 1 2 DHP4,
1 2DQP4R
1 2VP4A 1 2VP4
1 4WP4*, 1 4XP41 , AI,
1 4ZP4*
...,
1 4QP4
1 4QP4A, B*, 1 4H P4
C
1 4QP4A
1 4QP4, B*, 1 4H P4
."
1 4QP4B 1 4RP4
1 4QP4**, A**, 1 4HP4** 1 4RP4A, 1 4NP4, A, 1 4SP4,
t
...
1 4WP4*, 1 4XP41 , A I ,
1 4ZP4*
><
1 4RP4A
1 4RP4, 1 4N P4, A, 1 4SP4,
1 4WP4*, 1 4XP41 , AI,
12XP4
1 4ZP4*
�
1 2YP4 1 2ZP4
1 2ZP4A, 1 2JP46, B,
1 4SP4
1 4NP4, A, 1 4RP4, 1 4R P4A, 1 4WP4*,
1 2KP4*, 1 2KP4A*
1 4XP41 , 1 4XP4Al ,
1 2ZP4A
1 2ZP4, 1 2J P46, 8, 1 2 KP4*,
1 4ZP4*
1 2K P4A*
1 4UP4
1 4DP4**
1 3AP4
1 4VADP22 1 4VAHP22
1 3DP4
1 4VAEP22
1 3GP22
1 3MP22
1 4VAFP22
1 3JP22
1 4VAHP22 1 4VADP22
1 3lP22
1 4VAlP22
1 4ACP4 1 4AEP4 1 4AJP4
1 4AEP4* 1 4ASP4*, 1 4AVP4*
1 4WP4 1 4XP4
1 4ZP4 14XP4A, 1 4NP41, AI,
1 4R P41 , 1 4R P4A l ,
1 4ARP4 1 4ASP4
1 4AUP41 1 4AVP4
1 4SP41 , 1 4WP4* I , 1 4ZP4*1
1 4ATP4
47
To Replace Use
To Replace Use
1 4XP4A
1 4XP4, 1 4NP41 , AI,
1 6 BR P 4
1 6BVP41 , 1 6BWP41 a,
1 4RP41, 14RP4Al ,
1 6CAP41 a, 1 6CEP41 a,
1 4SP41 , 1 4WP4*1 ,
1 6CJP41 , 1 6CKP41 ,
1 4ZP4*1
1 6CMP41
1 4ZP4
1 4WP4
1 6BSP4
16BKP4a, 1 6BLP4a1,
1 5ACP22
1 4AFP22
1 6BTP4a
1 5ADP4
1 6BUP4
1 5AEP22
1 6BVP4
1 6 BWP4a
1 5AFP22
1 6BWP4
1 6BGP4, 1 6BVP4a
1 5AP4
1 5DP4**, A**
1 6CJP4a
1 5CP4
1 6BXP4
1 5DP4
1 5DP4A, 1 5AP4*
1 6BYP4
1 5DP4A
1 5DP4, 1 5AP4*
1 6CAP4
1 6BWP4, 1 6CEP4,
1 5GP22
�
1 5HP22
1 6BRP4aI , 1 6BVP4a, 1 6CJP4a, 1 6CKP41a,
1 5JP4
1 6CMP4a
1 5KP22
1 5NP22
1 6CDP22
A.
Q
1 5LP22 1 5MP22
1 4VADP22, 1 4VAHP22
1 6CEP4
1 6BWP4, 1 6CAP4, 1 6BRP41 a, 1 6BVP4a,
.'.0. 0 I
1 5NP22 1 5RP22
1 4VADP22, 1 4VAHP22
1 6CJP4a, 1 6CKP41 a, 1 6CMP4a
1 5SP22
1 5AFP22
1 6CFP4
A.
1 5VACP4
1 6CHP4
1 6CHP4A, 1 6BSP4a
><
1 5WP22
1 6CHP4A 1 6CHP4, 1 6BSP4a
...
1 5YP22 1 6ABP4
1 6AEP4#
1 6CJP4 1 6CKP4
1 6 BWP4a 1 6BRP41, 16BVP41,
1 6ACP4
1 6BWP41 ", 1 6CAP41 a,
'"
1 6AEP4
1 6ABP4
II.!
1 6AFP4
a::a
;:)
1 6ANP4
1 6AQP4, 1 6ASP41 ,
t-
1 6AXP41
II.!
1 6AP4
1 6AP4A, 1 6AP4B
l:1li:
1 6AP4A
1 6AP4, B
J
1 6AP4B
1 6AP4, A
tU
1 6AQP4
1 6ANP4, 1 6ASP4 1 , 1 6AXP41
A.
1 6ASP4
1 6AXP4, 1 6ANP41 ,
1 6CMP4
1 6CMP4A 1 6CNP4 1 6CP4 1 6CQP4 1 6CSP22
1 6CEP41 a, 1 6CJP41 , 1 6CMP41 1 6BVP4, 1 6CJP4, 1 6BRP41 , 1 6BWP4a, 1 6CAP4a, 1 6CEP4", 1 6CKP41 1 6BGP4", 1 6BWP4a
1 6 DAP22
�
1 6ATP4
1 6AQP41
1 6CTP4
1 6BWP4, 1 6CAP4, 1 6CEP4, 1 6BRP41 ", 1 6BVP4",
1 6AUP4
1 6BFP4"I, 1 6BMP41
1 6CJP4", 1 6CKP41 a,
1 6AVP4
1 6BCP4
1 6CMP4", 1 6CUP4a
1 6AWP4
1 6AZP41
1 6CUP4
1 6 BVP4, 1 6CJP4, 1 6CMP4,
1 6AXP4
1 6ASP4, 1 6ANP41 ,
1 6BRP41 , 1 6BWP4",
1 6AQP41
1 6CAP4a, 1 6CEP4",
1 6AYP4
1 6BDP41
1 6CKP41 , 1 6CTP4"
1 6AZP4
1 6AWP41
1 6CWP4
1 6DCP4,A, 1 6CXP4
1 6BAP4
1 6BEP41
1 6CXP4
1 6CWP4, 1 6DCP4,A
1 6BDP4
1 6AYP41
1 6CYP22
1 6BEP4
1 6BAP4a1
1 6DAP22 1 6CSP22
1 6BFP4
1 6AUP4a1 , 1 6BMP4a
1 6DCP4
1 6DCP4A, 1 6CWP4,
1 6BGP4
1 6BWP4, 1 6BHP4 1 ,
1 6CXP4
1 6BVP4a, 1 6CMP4Aa
1 6DCP4A 1 6D CP4, 1 6CWP4, 1 6CXP4
1 6BMP4
16AUP41 , 1 6BFP4a
1 6DP4
1 6D P4A
1 6BNP4
1 6DP4A
1 6DP4
48
To Replllce Use
To Replllce Use
1 6EP4
1 6 EP4A, 1 6EP4B
1 6YP4
1 6WP4A9, B9, 1 6SP49, A9,
1 6EP4A
1 6EP4, 1 6EP4B
1 6VP46
1 6EP4B 1 6FP4 1 6GP4 1 6GP4A 1 6GP4B
1 6E P4, 1 6EP4A
1 6GP4A 1 6GP4 1 6GP4
1 6ZP4 1 7AP4 1 7ASP4 1 7ATP4
1 6LP4, A, 1 6CP46 1 7BP4B*
1 7ATP4A, 1 7AVP4, 17AVP4A, 1 7BUP4,
1 6GP4C
1 6GP4
1 7CBP4, 1 7CLP4,
1 6HP4
1 6H P4A
1 7BJP4*, 1 7BKP41,
1 6HP4A
1 6HP4
1 7BKP4Al, 1 7BSP4* 1 ,
1 6JP4
1 6J P4A
1 7CUP4*1 , 1 7DCP4*1 ,
1 6JP4A
1 6JP4
1 7DJP41
1 6KP4
1 6K P4A, 1 6RP4, A, B*, 1 6TP4
1 7ATP4A
1 7ATP4, 1 7AVP4, A, 1 7BUP4, 1 7CBP4,
1 6KP4A 1 6LP4
1 6KP4, 1 6RP4, A, B*, 1 6TP4
1 6LP4A, 16ZP4
1 7CLP4, 1 7BJP4*,
1 7BKP41 , AI,
�
1 7BSP4*1 , 1 7CUP4*1 ,
1 6LP4A 1 6MP4 1 6MP4A 1 6QP4 1 6RP4
1 6LP4, 1 6ZP4 1 6MP4A, 16J P4, A 1 6MP4, 1 6JP4, A 16XP4 1 6R P4A, 1 6KP4, A. 1 6TP4,
1 7AVP4
1 7DCP4*1 , 1 7DJP41 1 7AVP4A, 1 7ATP4, A,
1 7BUP4, 1 7CBP4, 1 7CLP4, 1 7BJP4*, 1 7BKP41 , AI, 1 7BSP4*1 ,
."
n
-t C ;m:II'
1 6RP4A
1 6RP4B* 1 6RP4, 1 6KP4, 1 6KP4A,
1 7CUP4*1 , 1 7DCP4*1,
-t
1 7DJP41
C
1 6RP4B
1 6RP4B* 1 6KP4**, A**, 1 6RP4**,
1 7AVP4A
1 7AVP4, 1 7ATP4, A, 1 7BUP4, 1 7CBP4,
Cm mIt
1 6SP4
A**, 1 6TP4* * 1 6SP4A, 1 6WP4A, B
1 7CLP4, 1 7BJP4*, 1 7BKP41, AI, 1 7BSP4*1,
1 6SP4A 1 6TP4
1 6UP4
1 6SP4, 1 6WP4A, B 1 6K P4, A, 1 6RP4, 1 6RP4A,
1 6RP4B* 1 6K P47, A7, 1 6QP49,
1 6RP47, A7, 1 6TP47,
1 7BJP4 1 7BKP4
1 7CUP4*1 , 1 7DCP4* 1 , 1 7DJP41 1 7BSP41 , 1 7CUP41 , 1 7DCP41
1 7BKP4A, 1 7ATP4 1 , A I ,
0m -
."
t...
...
1 6VABP4 1 6VABP22
1 6XP49
1 7EMP4 1 6YACP22
1 7AVP41 , A I , 1 7BJP4* 1 , 1 7BSP4*1 , 1 7BUP41, 1 7CBP41 , 1 7CLP41 ,
m ." .mIlo
16VACP22 1 6VABP22
17CUP4*1 , 1 7DCP4*1 ,
1 6VAFP22
1 7DJP41
�
1 6VAGP4
1 7BKP4A 1 7BKP4, 1 7ATP41 , A I ,
1 6VAJP4
1 7AVP41 , AI, 1 7BJP4*1 ,
1 6VAKP22
1 7BSP4*, 1 7BUP41,
1 6VASP22 1 6VATP22
1 7CBP41 , 1 7CLP41 ,
1 6VATP22 1 6VASP22
1 7CUP4* 1 , 1 7DCP4* 1 ,
1 6VAWP22
1 7DJP41
1 6VBCP4 1 7ESP4
1 7BMP4
1 7BNP4*
1 6VBDP22
1 7BNP4
1 6VP4
1 6WP49, 1 6YP47
1 7BP4
1 7BP4A7, 1 7BP4B7,
1 6WP4
1 6WP4A, B7, 1 6SP47, A7,
1 7BP4C7, 1 7BP4D7,
1 6VP49
1 7AP47, 1 7JP47
1 6WP4A
1 6WP4B, 1 6SP4, A,
1 7BP4A
1 7BP46, B, C, 0*, 1 7AP4,
1 6WP47, 16YP49
1 7JP4
1 6WP4B
1 6WP4A, 1 6SP4, A,
1 7BP4B
1 7BP46, 1 7BP4A, 1 7BP4C,
1 6WP47, 1 6YP49
1 7BP4D*, 1 7AP4,
1 6XP4
1 6QP4, 1 6UP49
1 7J P 4
49
To Replace Use
To Replace Use
1 7BP4C
1 7B P46, 1 7BP4A, 1 7BP4B, 1 7CTP4
1 7BZP41, 1 7CAP41 ,
1 7BP4D*, 1 7AP4,
1 7CKP41 , 1 7CVP41 ,
1 7J P4
1 7DTP41 , 1 7DZP41
1 7BP4D
1 7BP4**6, 1 7BP4A**,
1 7CUP4
1 7DCP4, 1 7BJP4, 1 7 BSP4,
17BP4B**, 1 7BP4C**,
1 7DJP4* *
1 7AP4**, 1 7J P4**
1 7CVP4
1 7BZP41 , 1 7CAP41,
1 7BRP4
1 7BZP4*1 , 1 7CAP4*,
1 7CKP41, 1 7CTP41 ,
1 7CKP4*, 1 7CTP4* 1 ,
1 7DTP41 , 1 7DZP41
1 7CVP4* 1 , 1 7DTP4*1 ,
1 7CWP4
1 7DSP4, 1 7EFP41
1 7BSP4
1 7DZP4*1 1 7BJP41, 1 7CUP41 ,
1 7CXP4
1 7CRP4, 1 7CMP41 , 1 7CNP41
1 7 DCP41
1 7CYP4
1 7CZP4
1 7BTP4
1 7CZP4
1 7CYP4
1 7BUP4
1 7ATP4, A, 1 7AVP4, A,
1 7DAP4
1 7DRP4
�
1 7CBP4, 1 7ClP4,
1 7DBP4
1 7DWP4*1 , 1 7HP41 ,
1 7BJP4*, 1 7BKP4 1 ,
1 7HP4Al, 1 7HP4Bl,
N
1 7BKP4A 1 , 1 7BSP4* 1 ,
17HP4C*I , 1 7KP41, AI,
N
IlL
1 7CUP4* 1 , 1 7D-::P4* 1 ,
1 7RP4 1 , Cl
""'\
1 7DJP41
1 7DCP4
1 7CUP4, 1 7BJP41 , 1 7BSP41
&&.
...
1 7BVP4
1 7 BWP4*, 1 7BYP4* 1,
1 7DEP4
...
I
U
1 7BWP4
1 7CSP4* 1 7CSP4, 1 7BYP41
1 7D H P4 1 7DJP4
1 7EBP4 1 7ATP41 , AI, 1 7AVP41 ,
-=r
1 7BYP4
1 7BWP41, 1 7CSP41
AI, 1 7BJP4*1 , 1 7BKP41 ,
IlL
CD
1 7BZP4
1 7DSP4
AI, 1 7BSP4*1 , 1 7BUP41 ,
...
1 7CAP4
1 7BZP4, 1 7CKP4, 1 7DTP4,
1 7CBP41 , 1 7ClP41 ,
1 7BRP4**, 1 7CTP41 ,
1 7CUP4*, 1 7DCP4*
1 7CVP41 , 1 7DZP41
1 7D K P4
'"
1 7CBP4
1 7ATP4, A, 1 7AVP4, A,
1 7DlP4
1 7EBP41
II.!
CD
1 7BUP4, 1 7ClP4,
1 7DQP4
:::>
1 7BJP4*, 1 7BKP41 , AI,
1 7DRP4
1 7DAP4
...
1 7BSP4*1, 1 7CUP4*1 ,
1 7DSP4
1 7EBP41 , 1 7EFP41
II.!
17DCP4*1, 1 7DJP41
1 7DTP4
1 7DKP4
c.::
1 7CDP4
1 7DWP4
:::>
1 7CEP4
1 7CFP41
... U
1 7CFP4
1 7CEP41
1 7CGP4
IlL
1 7CKP4
1 7CAP4, 1 7BRP4**,
1 7DXP4 1 7DZP4 1 7EAP4 1 7EBP4
1 7DHP4, 1 7EBP4, 1 7DKP41 1 7DTP41
�
1 7BZP41, 1 7CTP41 , 1 7CVP41 , 1 7DTP41,
1 7EFP4 1 7EHP4
1 7BZP41
1 7EJP22
1 7ENP22
1 7ClP4
1 7ATP4, A, 1 7AVP4, A,
1 7EKP4
1 7BUP4, 1 7CBP4,
1 7ElP4
1 7BJP4*, 1 7BKP41 , AI, 1 7 BSP4* 1 , 1 7CUP4 * 1 , 1 7DCP4*1 , 1 7DJP41
1 7EMP4 1 7ENP22 1 7EQP4
1 6VABP4 1 7EJP22 1 7FCP4
1 7CMP4
1 7CNP4, 1 7CRP4 1,
1 7 ESP4
1 6VBCP4
1 7CXP41
1 7EVP22
1 6VAFP22
1 7CNP4
1 7CMP4, 1 7CRP41 ,
1 7EXP22
1 7FJP22
1 7CXP41
1 7EZP22
1 6VABP22
1 7CP4
1 7CP4A
1 7FCP4
1 7EQP4
1 7CP4A
1 7CP4
1 7FDP4
1 7CRP4
1 7CXP4, 1 7CMP41,
1 7FGP22
1 7CNP41
1 7FHP22
1 7CSP4
1 7BWP4, 1 7BYP41
1 7FJP22
1 7EXP22
SO
To Replace Use
To Replace Use
1 7FP4
1 7FP4A, 1 7HP4C*
1 8VBGP22 1 8VALP22
1 7FP4A
1 7FP4, 17HP4C*
1 8VBHP22 1 9HXP22
1 7GP4
1 8 V BJP22
1 7HP4
1 7H P4A, B, C*, 1 7KP4, A, 1 8VBKP22
1 7RP4, C, 1 7DBP41 ,
1 8VBMP22
1 7DWP4*
1 9ABP4
1 7HP4A
1 7H P4, B, C*, 1 7KP4, A, 1 7R P4, C, 1 7DBP41
1 9ACP4
1 9CHP4, 1 9CKP4, 1 9DLP4, 1 9FVP4a1
1 7DWP4*
1 9AEP4
1 7HP4B
1 7H P4, A, C*, 1 7KP4, A, 1 7RP4, C, 1 7DBP41,
1 9AFP4
1 9AUP4, 1 9BAP41 , 1 9BCP4 1
1 7HP4C
1 7DWP4* 1 7H P4**, A**, B**,
1 7DWP4, 1 7KP4**, A**,
1 9AHP4 1 9AJP4
1 9ALP41 1 9CDP41 , 1 9CQP41 ,
1 9CXP41
1 7J P4
1 7AP4, 1 7BP46, A, B, C, D*
1 9ALP4 1 9ANP4
1 9AHP41 1 9YP41
�
1 7KP4 1 7KP4A
1 7K P4A 1 7KP4
1 9AP4
1 9AP4A, 1 9AP4B, 1 9AP4C, 1 9AP4D
."
171P4 1 7 1P4A
1 71P4A, B*, 1 7VP4, B 1 7LP B*, 1 7VP 1 7VP4B
1 9AP4A
1 9AP4, 1 9AP4B, 1 9AP4C, 1 9AP4D
0 -I
C
1 7 1P4B
1 71P4**, A**, 1 7VP4**, B**
1 9AP4B
1 9AP4, 1 9AP4A, 1 9AP4C, 1 9AP4D
:m:II'
1 7QCP4
1 9AP4C
1 9AP4, 1 9AP4A, 1 9AP4B,
-I
1 7QP4 1 7QP4A
1 7QP4A, B*, 1 7YP4 1 7QP4, B*, 1 7YP4
1 9AP4D
1 9AP4D 1 9AP4, 1 9AP4A, 1 9AP4B,
C m m
1 7QP4B
1 7QP4**, A**, 1 7YP4**
1 9AP4C
'"
1 7RP4
1 7RP4C, 1 7HP4, A, B, C*, 1 9AQP4
1 9AXP41 , 1 9BLP41 ,
1 7KP4, A, 1 7DBP4 1 ,
1 9XP41
...
1 7RP4C
1 7DWP4* 1 7RP4, 1 7HP4, A, B, C*,
1 7KP4, A, 1 7DBP41,
1 7DWP4*
1 9ARP4 1 9A5P4 1 9ATP4
1 9A5P4 l , 1 9CEP4l 1 9CEP4, 1 9ARP41
1 9AFP4, 1 9AUP4, 1 9BAP41 , 1 9BCP41 ,
...". ."
t...
1 7SP4 1 7TP4 1 7 UP4
1 7Q P4, 1 7QP4A, B*,
1 9AUP4
1 9BMP41 1 9AFP4, 1 9BAP41,
1 9BCP41
-m 0
Z ."
- 1 7YP4
1 9AVP4
1 9AYP41
,.
1 7VACP22 1 7VADP22
1 9AXP4
1 9AYP4, 1 9AVP4 1 ,
1 7VADP22
1 9XP4l
�
1 7VP4
1 7VP4B, 1 71P4, A, B*
1 9AYP4
19AVP41
1 7VP4B 1 7YP4 1 8VABP22 1 8VAHP22
1 7VP4, 1 71P4, A, B* 1 7QP4, A, B* 1 8VAJP22, 1 8VATP22
1 9 BAP4 1 9BCP4
1 9BCP4, 1 9AFP41 , 1 9AUP41
1 9BAP4, 1 9AFP41 ,
1 9AUP41
1 8VAJP22 1 8VATP22, 1 8VBKP22
1 9BDP4
1 8 VAKP22 1 8VALP22 1 8VATP22, 1 8VBKP22
1 9 BEP4
1 9CTP4, 1 9DJP4, 1 9B5P41
1 8VAMP22 1 8VBDP22
1 9BFP4
1 8 VANP22
1 9BHP4
1 9AVP4
1 8VASP22
1 9BLP4
1 9CYP4
1 8VATP22 1 8 VAUP22 1 8VAZP22 1 8VBDP22
1 8 VAJP22 1 8 VAMP22
1 9 BMP4 1 9BNP4
1 9AFP4, 1 9AUP4, 1 9BAP41 , 1 9BCP41
1 9BQP4, 1 9CVP41 ,
1 9DYP4l, 1 9GMP41
1 8VBEP22
Sl
To Replace Use
To Replace Use
1 9BQP4
1 9BNP4, 1 9CVP41 , 1 9DYP41 , 1 9GMP41
1 9DUP4 1 9DVP4
1 9ENP4, A, 1 9GHP4 1 9DZP4
1 9BRP4
1 9DKP4, 1 9CZP41 , 1 9 DAP41
1 9DWP4
1 9EVP4, 1 9FCP4, 1 9GJP4, A, 1 9EDP41
19B5P4
1 9BEP41 , 1 9CTP41 ,
1 9DYP4
1 9CVP4, 1 9GMP4
1 9DJP41
1 9DZP4
1 9BVP4
1 9BTP4
1 9CYP4
1 9EAP4
1 9DUP4, 1 9ENP4, A,
1 9BVP4
1 9BWP41
1 9DHP41 , 1 9D5P41 ,
1 9BWP4
1 9BVP41
1 9EFP41 , 1 9E5P41
1 9CAP4
1 9BTP4
1 9EBP4
1 9GFP4a1
1 9CDP4
1 9CQP4, 1 9CXP4, 1 9AJP41 1 9ECP4
1 9HGP4n
1 9CEP4
1 9BAP4, 1 9BCP4, 1 9AFP41 , 1 9EDP4
1 9DWP41, 1 9FCP41 ,
1 9AUP41 , 1 9BMP41
1 9GJ P41 , Al
1 9CFP4
1 9CHP4, 1 9CKP4, 1 9D1P4, 1 9EFP4
1 9DHP4, 1 9D5P4, 19E5P4,
�
1 9FVP4a1
1 9DUP4 1 , 1 9EAP4 1 ,
1 9CGP4
1 9ENP41 , AI, 1 9GHP41
-<
1 9CHP4
1 9CKP4, 1 9D1P4,
A.
1 9 FVP4a1
.,
1 9CJP4
1 9AVP4
1 9EGP4 1 9EHP4 1 9EHP4A
1 9HAP41
1 9EHP4A, 1 9DCP4, 1 9FJP41 1 9EHP4, 1 9DCP4, 1 9FJ P41
U.
0-
1 9CKP4
1 9FVP4a1
1 9EJP4
1 9FEP4, A, B
...
JA.
1 9C1P4 1 9CMP4 1 9CMP4A
1 9BDP4, 1 9C R P4 1 9CMP4A, 1 9CHP41
1 9C U P4
1 9EKP4 1 9E1P4 1 9ENP4
1 9EZP4 1 9AVP4 1 9ENP4A, 1 9DUP4,
01 m 0-
1 9CQP4 1 9CUP4
1 9CDP4, 1 9CXP4, 1 9AJP41 1 9DFP41
1 9EAP4, 1 9DHP41 , 1 9D5P41 , 1 9EFP41 ,
1 9CVP4
1 9DYP4, 1 9GMP4
1 9E5P41 , 1 9GHP4
1 9CXP4
1 9CDP4, 1 9CQP4, 1 9AJP41 1 9ENP4A
1 9ENP4, 1 9DUP4, 1 9EAP4,
V)
1 9CYP4
...
m ;:)
1 9CZP4 1 9DAP4
1 9DAP4, 1 9DKP41 1 9CZP4, 1 9D K P41
I-
1 9DBP4
1 9EP4
1 9DHP41 , 1 9D5P4 1 , 1 9EFP4 1 , 1 9E5P41 1 9GHP4
1 9J P4
...
a:
1 9DCP4
1 9EDP4, 19EUP4, 1 9DWP41 , 1 9FCP41 ,
1 9E5P4
1 9DHP4, 19D5P4, 1 9EFP4, 1 9DUP41 , 1 9EAP41,
;:)
1 9FTP41 , 1 9GJP41, Al
1 9ENP41 , AI, 19GHP4
IU A.
1 9DEP4 1 9DFP4 1 9DHP4
1 9AVP4 1 9C U P41
1 9D5P4, 1 9EFP4, 1 9E5P4,
1 9 ETP4 1 9EUP4
1 9DWP41 , 1 9EDP4, 1 9FCP41 , 1 9FTP41 ,
�
1 9DUP41 , 1 9EAP41 , 1 9ENP41 , AI, 1 9FUP4a1
1 9EXP22
1 9GJP41 , Al 1 9GVP22, 1 9GYP22
1 9DJP4
1 9BEP4, 1 9B5P4
1 9EYP22
1 9FMP22
1 9DKP4 1 9D1P4
1 9CZP41 , 1 9DAP41 1 9CHP4, 1 9CKP4
19EZP4 19FBP4
1 9EKP4 1 9EGP4, 1 9HAP41
1 9DNP4
1 9DK P4, 1 9CZP4 1 , 1 9DAP41
1 9FCP4
1 9DWP4, 1 9GJP4, A, 1 9EDP41
1 9DP4
1 9DP4A, 1 9FP46, 9,
1 9FEP4
1 9FEP4A, B, 1 9EJ P4
1 9GP46
1 9FEP4A
1 9FEP4B
1 9DP4A
1 9DP4, 1 9FP46, 9 1 9GP46
1 9FEP4B
1 9FEP4A
1 9DQP4
1 9DRP41, 1 9F1P4a,
1 9FGP4
1 9DRP4
1 9FRP41 1 9DQP41, 1 9F1P481 ,
1 9FHP4 1 9FJ P4
1 9DCP41, 1 9EHP41 ,
1 9FRP41
1 9EHP4Al
1 9D5P4
1 9DHP4, 1 9EFP4, 1 9E5P4,
1 9FJP4A
1 9DWP4, 1 9EDP41 ,
1 9DUP41, 1 9EAP41 ,
1 9FCP4, 1 9GJP4, A,
1 9ENP41, AI, 1 9FUP4a1
1 9GRP4
52
To Replace Use
To Replace Use
1 9FLP4
190QP4a, 1 90RP4a1
1 9QP4
1 9FRP4a1
1 9TP22
1 9FNP4
1 9GEP41 , 1 9GKP41
1 9VAFP22
1 9FP4 1 9FRP4
1 9GP4 1 90QP41 , 1 90RP41 ,
1 9FLP4a1
1 9VAGP22 1 9VAHP4 1 9VAJP4
1 9VAFP22
1 9FTP4
1 90WP4, 1 9FCP4, 1 9GJP4, A, 1 90CP41 , 1 9EOP41, 1 9EUP41
1 9VALP4 1 9VAMP22 1 9VANP22
1 9VBQP22
1 9FWP4
1 9VAQP22 1 9VBSP22, 1 9VCBP22,
1 9FXP22
1 9GWP22
1 9VCSP22
1 9FZP4
1 9VARP4
1 9GAP4
1 9VATP22 1 9VBRP22, 19VBWP22
1 9GBP4
19CZP4, 1 90AP4, 1 90KP41 1 9VBLP22
1 9GEP4 1 9GEP4A
1 9F N P41 , 1 9GEP4A 1 9FNP41 , 1 9GEP4
1 9VBQP22 1 9VBRP22
�
1 9GFP4
1 9EBP4a1
1 9VBSP22 1 9VAQP22, 1 9VCBP22,
1 9GHP4
1 90HP41 , 1 905P41 ,
1 9VCSP22
."
1 90UP4, 19EAP4,
1 9VBWP22 1 9VATP22, 1 9VBRP22
n
1 9EFP41 , 1 9ENP4, A, 1 9E5P41
1 9VCBP22 1 9VCSP22 1 9VCKP4 20XP4
-t c: ,.,
1 9GJP4
1 9GJP4A, 1 90WP4,
1 9VCLP4
1 9VCMP4, 20YP4, 20ZP4
rn
1 9EOP41 , 1 9FCP4
1 9VCMP4 20ABP4, 20YP4, 20ZP4
-t
1 9GJP4A 1 9GJP4, 1 90WP4,
1 9VCSP22 1 9VCBP22
c:
1 9EDP41 , 1 9FCP4
1 9VP22
ell'
1 9GKP4
1 9FNP41 , 1 9GEP41
1 9XP4
1 9AVP4, 1 9AXP41 ,
rn '"
1 9GMP4
1 9CVP4, 1 90YP4
1 9AYP41
1 9GP4
1 9FP49
1 9YP4
1 9ANP41
1 9G5P22
1 9EYP22
1 9ZP4
1 9BHP4, 1 9AQP41
...
-0
1 9GVP22 1 9GWP22
1 9GYP22 1 9HBP22, 1 9H RP22,
20ABP4
1 9VCMP4, 20RP4, 20YP4, 20ZP4
"'1'1
r-
."
1 9GYP22
1 9JYP22 1 9EXP22, 1 9GVP22,
20AOP4 20AEP4
20SP4a
t
1 9HAP4
1 9HQP22 1 9 EGP41
20AHP4 20BP4
0
C
."
1 9HBP22 1 9GWP22, 1 9HRP22,
20CP4
20CP4B, C, 200P4, B,
.110
1 9HCP22
1 9JYP22 1 8 VAJP22, 1 8VATP22,
20CP4A7, 07, 200P4A7,
C7, 0*7
�
1 9JZP22
20CP4A
20CP40, 200P4A, C,
1 9HGP4
1 9ECP4a
20CP46, 86, C6, 200P46,
1 9HMP22
B6, O*
1 9HNP22 1 8VAZP22
20CP4B
20CP4, C, 200P4, B,
1 9HRP22
1 9GWP22, 1 9HBP22,
20CP4A7, 07, 200P4A7,
1 9JYP22
C7, 0*7
1 9HQP22 1 9GYP22
20CP4C
20CP4, B, 200P4, B,
1 9HTP22
20CP4A7, 07, 200P4A7,
1 9HXP22 1 8VAJP22, 1 8VBHP22
(7, 0*7
1 9HYP22 1 8VAMP22
20CP40
20CP4A, 200P4A, C,
1 9J NP22
1 8VABP22, 1 8VAJP22
20CP46, B6, C6, 200P46,
1 9J P4
1 9EP4
B6, O*
1 9JWP22
200P4
200P4 20CP4, C,
1 9JYP22
200P4A7, C7, 0*7,
1 9JZP22
1 8VAJP22, 1 BVATP22
20CP4A7, 07
1 9KLP22
1 8VAKP22
53
To Replace Use
To Replace Use
20DP4A
20DP4C, 20CP4A, D,
2 1 ACP4
2 1 ACP4, 2 1 AMP4, A,
20DP46, B6, D*, 20CP46,
21 BSP4, 2 1 CUP4,
B6, C6
21 AMP4B*
20DP4B
20DP4, 20CP4, B, C,
21 AFP4
21 BCP4*7, 2 1 YP47, A7,
20DP4A7, C7, D*7,
B*7
20CP4A7, D7
21 AlP4
2 1 ALP4A, B, 2 1 ATP4, A,
20DP4C
20DP4A, 20CP4A, D,
B, 2 1 BTP4, 2 1 CMP4,
20DP46, B6, D*, 20CP46,
2 1 CWP4, 2 1 DNP4
20DP4D
B6, C6 20DP4A**, Coo,
2 1 AlP4A
2 1 ALP4, B, 2 1 ATP4, 21 ATP4A, 2 1 ATP4B,
20CP4A**, D**
21 BTP4, 2 1 CMP4,
20FP4
20GP47
2 1 CWP4, 2 1 D N P4
20GP4
20FP46
2 1 AlP4B
2 1 A LP4, A, 2 1 ATP4, A, B,
�
20HP4
20HP4B, C, A7, D7, E*7, 20J P47, 20LP47, 20MP47
2 1 BTP4, 2 1 CMP4, 2 1 CWP4, 21 DNP4
20HP4A
20HP4D, 20JP4, 20LP4,
21 AMP4
2 1 AMP4A, 2 1 ACP4, A,
IIlCI
A..
20MP4, 20HP46, B6, C6, E*
21 BSP4, 21 CUP4, 2 1 AMP4B*
I-
-c(
0-
20HP4B
20HP4, C, A7, D7, E*7,
2 1 AMP4A
20JP47, 20LP47, 20MP47
2 1 AMP4, 2 1 ACP4, A, 2 1 BSP4, 21 CUP4,
N I
-c(
20HP4C 20HP4D
20HP4, B, A7, D7, E*7, 20J P47, 20LP47, 20MP47
20HP4A, 20JP4, 20lP4,
21 AMP4B
2 1 AMP4B* 2 1 AMP4**, A**,
2 1 ACP4**, A**,
A..
C 0
20MP4, 20HP46, B6, (6, E*
21 ANP4
21 BSP4**, 21 CUP4** 2 1 ANP4A
N
20HP4E
20HP4A* *, 20J P4**,
2 1 A N P4A 2 1 AN P4
20lP4**, 20MP4**
2 1 AP4
V.)..
20JP4 20LP4
2 1 AQ P4 20H P4A, D, 20JP4, 20MP4,
21 AQP4A, 2 1 ACP47, A7, 2 1 AMP47, A7, B*7,
IIlCI
::;) I-
20MP4
20HP46, B6, C6, E* 20HP4A, D, 20JP4, 20LP4,
21 AQP4A
2 1 BSP47, 21 CUP47 21 AQP4, 21 ACP47, A7,
... ICI::
20RP4
20HP46, B6, C6, E* 20ABP4, 20YP4, 20ZP4
2 1 AMP47, A7, B*7, 2 1 BSP47, 2 1 CUP47
::;)
20SP4
20AEP4u
21 ARP4
21 ARP4A
I-
20TP4
20XP4
U
20UP4
2 1 AR P4A 21 ASP4
2 1 ARP4 2 1 AYP47, 2 1 XP47,
A..
20VADP22 20VAGP22
21 XP4A 2 1 XP4B*7
20VAEP22
�
20VAFP22
2 1 ATP4
2 1 ATP4A, B, 2 1 AlP4, A, B, 2 1 BTP4, 21 CMP4,
20VAGP22 20VADP22
2 1 CWP4, 2 1 DNP4,
20VAHP22 22ALP22
2 1 BAP4*, 2 1 BNP4*,
20VAJP22 20VASP22, 22ALP22
21 CVP4*
20VASP22 20VAFP22
2 1 ATP4A 2 1 ATP4, B, 2 1 AlP4B,
20VATP4
21 BTP4, 2 1 CMP4,
20VAQP4
2 1 CWP4, 2 1 DNP4,
20WP4
2 1 BAP4*, 2 1 BNP4*,
20XP4
1 9VCKP4
21 CVP4*
20YP4
1 9VClP4, 1 9VCMP4,
2 1 ATP4B 2 1 ATP4, A, 2 1 AlP4, A, B,
20ABP4, 20RP4, 20ZP4
2 1 BTP4, 2 1 CMP4,
20ZP4
1 9VCMP4, 20ABP4,
2 1 CWP4, 2 1 DNP4,
20RP4, 20YP4
21 BAP4*, 21 BNP4*,
21 ACP4
2 1 ACP4A, 21 AMP4, A,
21 CVP4*
21 BSP4, 2 1 CUP4,
21 AMP4B*
S4
To Replace Use
To Replace Use
2 1 AUP4
21 AUP4A, B, C*, 2 1 AVP4, 2 1 AVP4A, 2 1 AVP4B,
21 CEP4 2 1 C EP4A
21 EMP4 21 DWP41
2 1 AVP4C*, 2 1 BDP4*
21 CGP4
21 CHP4*
21 AUP4A
2 1 AUP4, B, C*, 2 1 AVP4, 2 1 AVP4A, 2 1 AVP4B, 2 1 AVP4C*, 21 BDP4*
2 1 CHP4 2 1 C K P4
21 CGP4** 2 1 CBP4Al, 21 DlP41 ,
21 DRP41 , 21 FlP41
21 AUP4B 21 AUP4, A, C*, 21 AVP4,
21 ClP4
2 1 AVP4A, 2 1 AVP4B, 2 1 AVP4C*, 21 BDP4*
21 CMP4
2 1 DNP4, 2 1 CBP4A*, 21 CKP41, 21 DRP4*,
21 AUP4C
21 AVP4C, 21 BDP4, 21 AUP4**, A**, B**,
21 CQP4
21 FlP4* 21 CSP41
21 AVP4**, A**, B**
2 1 CSP4
2 1 CQP41
21 AVP4
21 AVP4A, B, C*, 21 AUP4, 21 CUP4
2 1 ACP4, A, 21AMP4,
A, B, C*, 21 BDP4*
21 AMP4A, 21 BSP4,
2 1 AVP4A 2 1 AVP4, B, C*, 2 1 AUP4,
21AMP4B*
�
A, B, C*, 2 1 BDP4*
21 CVP4
2 1 BAP4, 21 BNP4, 2 1 CMP4,
2 1 AVP4B 21 AVP4, A, C*, 21 AUP4,
21 DNP4
."
A, B, C*, 2 1 BDP4*
2 1 CWP4
21 AlP4B, 21ATP4A,
n
21 AVP4C
2 1 AUP4C, 21 BDP4, 2 1 AVP4**, A**, B**, 21 AUP4**, A**, B**
2 1 CXP4
2 1 BTP4, 21 CMP4, 2 1 DNP4 21 DSP41
-t
c:
:"I'I'
2 1 AWP4 21 AWP4A 2 1 AXP22
21 AWP4A* 21 AWP4**
21 CYP22 2 1 CYP22A 21 CZP4
21 DEP4*, A*, 21 DHP41 *,
-t c:
m
21 AXP22A
21 AYP4
2 1 X P4, A, B*, 2 1 ASP46
21 DAP4
21 DKP41 *, Al * 21 DMP41
"'
In
21 BAP4
21 B N P4, 2 1 CBP4A, B,
21 DEP4
2 1 DEP4A, 21 CZP4*
21 BCP4
2 1 CVP4, 2 1 DRP4, 2 1 FLP4 21 YP4B, 2 1 YP4**, 2 1 YP4A**
21 DEP4A 21 DFP4
21 DHP41, 21 DKP41 , 21 D K P4Al
21 DEP4 2 1 CZP4*1, 2 1 DEP41 , AI,
t.o..).
c:
."
21 BDP4 21 BNP4
21 AUP4C, 21 AVP4C, 21AUP4B**, 21AVP4B**
21 BAP4, 2 1 CBP4A, 2 1 CVP4, 2 1 DRP4,
21 DHP4 21 DJP4
21 DWP41 , 21 EMP4
21 CEP4, A, 21 DMP4, 2 1 D KP41, Al
2 1 C BP4A l , 2 1 CKP4 1 ,
tt.o..).
C <
21 BRP4
2 1 FLP4
21 DLP41, 21 DRP41, 21 FLP41
." ,.
21 BSP4
21 ACP4, A, 2 1 AMP4, A, 2 1 CUP4, 2 1 AMP4B*
2 1 D KP4
2 1 D K P4A, 21 DEP4 1 , A I , 21 DHP41
�
2 1 BTP4
21 ALP4Bl , 2 1 ATP4Al ,
2 1 D KP4A 2 1 DKP4, 21 DEP41 , A I ,
2 1 BAP41, 2 1 BNP4* 1 ,
21 DHP41
2 1 CMP4 1 , 2 1 CVP4* 1 ,
2l DLP4
21 DQP4
2 1 CWP41 , 2 1 DNP41
21 DMP4
21 CBP4
21 CBP4A, B, 2 1 DLP4, 21 DQP4, 21 DRP4,
21 DNP4
21 CBP4A*I, 21 CKP4' *, 2 1 CMP41 , 21 DRP4* ' ,
2 1 FLP4, 2 1 C K P4'
21 FLP4*1
2 1 CBP4A 21 CBP4B, 2 1 DLP4,
21 DP4
21 DQP4, 2 1 DRP4,
21 DQP4
21 CBP4', A', B', 21 CKP4',
2 1 FlP4, 21 CKP41,
21 DlP4', 21 FlP4'
2 1 CBP4B 2 1 CBP4A, 21 DlP4,
21 DRP4
21 CBP4A, 21 DlP4, 21 FlP4,
2 1 DQP4, 21 DRP4,
21 CKP4'
2 1 FlP4, 21 CKP4'
21 DSP4
21 CXP4
2 1 CDP4
21 CDP4A, 2 1 C K P4*'
21 DVP4
2 1 ENP4, 21 CKP4 * ' ,
2 1 CDP4A 21 CDP4, 2 1 C K P4*'
2l DJP4*'
SS
To Replace Use
2 1 DWP4
2 1 CEP4A', 21 DFP4'
21 EAP4
21 ElP4
21 EMP4
21 ENP4
2 1 CBP4A*' , 2 1 CKP4* ', 2 1 CMP4' , 2 1 DJP4* 1 ,
2 1 DNP4' , 2 1 DRP4 * ' ,
21 FLP4*'
21 EP4
21 EP4A7, B7, C*7
2 1 EP4A
21 EP4B, C*
21 EP4B
21 EP4A, C*
2 1 EP4C
21 EP4A**, B**
2 1 EQP4
�
2 1 ERP4 2 1 ESP4
2 1 FAP4
"A".
21 EVP4 2 1 EXP4
2 1 EQP4'
t-
>
N N
JA.
21 EZP4 2 1 FAP4 21 FBP22 2 1 FBP22A 2 1 FCP4 2 1 FDP4
2 1 FJ P22
21 FKP22
a
2 1 FJP22A
0-
N
21 FKP22
2 1 FJ P22
21 FLP4
21 CBP4A, 2 1 DLP4,
21 DRP4, 21 CKP4'
'" ill
21 FMP4
r:r:lI
21 FP4
21 FP4A7, D*7
::) t-
2 1 FP4A 2 1 FP4C
21 FP46, D* 21 FP46, 2 1 FP4A, D*
ill
c:.:: ::)
21 FP4D 21 FUP4
2 1 FP4A**, C** 2 1 GTP41
t-
21 FVP4
21 FWP4
U
2 1 FWP4
21 FVP4
A.
2 1 FX P4
2 1 FYP4
�
2 1 FZP4
2 1 GAP4
2 1 GAP4A
2 1 GAP4A 21GAP4
2 1 G BP4
2 1 GCP4
2 1 GEP4
2 1 GFP22
20VAGP22
21GHP4
2 1 GJ P 4
2 1 G KP4
2 1 GTP4
2 1 FUP4'
21GUP22 21 FBP22
2 1 GVP22 2 1 GYP22
21 GWP22 20VAGP22
21 GYP22 21GVP22
2 l J P4
21 JP4A
S6
To Replace Use
2 l J P4A 21 KP4 21 KP4A 21 MP4 21 VABP22 21 VACP22 21 VADP22 21 VAGP4 21 VAKP22 21 VALP22 21 VAQP22 21 VARP22 21 VASP4 21 VATP4 21 VAUP22 21 WP4 2 1 W P4A 21 WP4B 21 XP4 21 XP4A 21 XP4B 21 YP4 2 1 YP4A 21 YP4B 21 ZP4
21 ZP4A 21 ZP4B 21 ZP4C 22AFP4 22AHP22 22ALP22 22ANP22 22AP4 22AP4A 22ARP22 22ASP22 22ATP22 22JP22 22KP22 22QP22
22RP22 22SP22 22TP4 22UP22 22VABP4 22VACP4 22VADP4 22VAEP4 22VAMP4 22VARP4 22VASP4 22VATP4
2 1 J P4 2 1 KP4A7 21 KP46
2 1 VAKP22 21 VAQP22, 21 VAUP22 21 VARP22
21 VAUP22
22ZP4 22AFP4 21 VAQP22 2 1 WP4A, B* 2 1 WP4, B* 2 1WP4**, A** 2 1 XP4A, B* 2 1 XP4, B * 21 XP4**, A** 2 1 YP4A, B*, 2 1 BCP4* 2 1 YP4, B*, 21 BCP4* 2 1 BCP4, 2 1 YP4**, A** 2 1 ZP4A7, 2 1 ZP4B7,
2 1 Z P4C*7 21 ZP4B, C* 21 ZP4A, C* 21 ZP4A**, B** 2 1 VATP4 22ASP22, 22UP22 20VAJP22, 20VASP22 20VAHP22 22AP4A 22AP4 20VAGP22
20VAGP22, 22ARP22
20VAGP22, 22ARP22, 22JP22
22KP22 20VAGP22
22ASP22
23GBP4, 23HFP4 23GJP4, 23GWP4 23FCP4, 23FDP4, 23FHP4 23HGP4, 23JEP4
To Replace Use
To Replace Use
22WP22
23BQP4
23CBP4, 23UP4, 23DGP41
22ZP4 23ACP4
2 1 VASP4 23TP4
23BRP4
23BYP4, 23CSP4, 23RP4, 23CUP41 , 23DP41
23AFP4
23BMP4, 23BTP4, 23YP4,
23BSP4
23AVP41 , 23AYP41
23CDP41
23CP41, AI, 23DXP41,
23AHP4
23ASP4, 23AUP4, 23CZP4, 23AZP41
23GP41 , 23HP41 , 23SP41
23AKP4
23CVP41
23BTP4
23AFP4, 23BMP4, 23XP4,
23ALP4
23AMP41 , 23CQP41 , 23MP41, 23MP4Al ,
23BVP4
23YP4, 23CDP41 23CTP41 , 23EAP41
23VP41
23BXP4
23EDP4
23AMP4
23AlP41, 23CQP41 , 23MP41 , 23MP4A1 ,
23BYP4
23BRP4, 23CSP4, 23RP4, 23CUP41, 23DP41
23VP41
23BZP4
23ANP4
23ATP4, 23BKP4, 23BlP4
23CAP4
�
23AQP4
23AMP4, 23VP4, 23AlP41 , 23CBP4
23BQP4, 23UP4
23AMP4 1 , 23CQP41 ,
23CDP4
"U
23FP41 , AI , 23MP4 1 ,
23CEP4
23ARP41 , 23CMP41
0
23MP4Al
23CGP4
23ASP41
23ARP4 23ASP4
23AXP41
23CMP4 23CP4
23BCP41 23CP4A, 23AVP4, 23DXP4,
C " m
23ATP4 23AUP4
23AVP4
23ANP4, 23BKP4, 23BlP4 23AHP4, 23ASP4, 23CZP4,
23AZP41 23CP4, A, 23DXP4,
23AYP41 , 23BSP41 ,
23CP4A
23AYP41, 23BSP41,
23HP41, 23SP41
23CP4, 23AVP4, 23DXP4, 23AYP41 , 23BSP41, 23HP4 1 , 23SP41
C m m
�It
23HP4 1 , 23SP41
23CQP4
23FP41, A I , 23VP41
23AWP4 23AXP4 23AYP4
23BJP4
23EJP4 23BSP4, 23SP4, 23AVP41 ,
23CSP4 23CTP4
23BRP4, 23BYP4, 23RP4, 23CUP41, 23DP41
23BVP41 , 23EAP4 1
..., ...,
23CP41, AI, 23DXP41 ,
23CUP4
23DP4, 23BRP41 , 23BYP41 ,
"U
...,
23AZP4 23BAP4 23BCP4
23HP41 23ASP41
23BP4 23CEP41 , 23CMP41
23CVP4 23CWP4 23CXP4
23CSP41, 23RP41 23AKP41
23CXP41
23CWP41
W..I ...,., C 10
23BDP4
23BTP4
23CZP4
23ASP4
"U
23BEP4
23BEP4A
23DAP4
23DCP41
,a:.
23BEP4A 23BGP4
23BEP4 23BHP4
23DBP4 23DCP4
23DAP41
�
23BHP4
23BGP4
23DEP4
23BJP4 23BKP4
23AWP4 23BlP4, 23ANP41 ,
23ATP41
23DFP4 23DHP4 2 3 D J P4
23DJP4, 23UP41 23DHP4, 23UP41
23BlP4
23BKP4, 23ANP41 ,
2 3 D K P4
23DTP4, 23FlP41
23BMP4
23ATP41 23AFP4, 23BTP4, 23XP4,
23DlP4
23DlP4A, 23ENP4, 23FBP4, 23FWP41 ,
23YP4, 23CDP41
23FWP4Al
23BNP4
23ADP4, 23AVP4, 23CP4, 23DlP4
23DlP4A, 23ENP4,
A, 23DXP4, 23GP4,
23FBP4, 23FWP41, Al
23AYP4 1 , 23BEP41 , A I , 23DNP4
23BQP41, 23BSP41 , 23CBP41, 23SP41 , 23UP41
23DP4
23CUP4, 23RBP41, 23BYP41, 23CSP41,
23RP41
23BP4
23BAP4
23DQP4
57
To Replace Use
To Replace Use
23DSP4
23DSP4A
23FVP4
23FVP4A, 23DYP41 ,
23DSP4A 23DSP4
23ESP4, 23ETP4 1 ,
23DTP4
23DKP4, 23FlP41
23FMP4, 23HMP4
23DVP4
23DVP4A, 23DZP4 1 ,
23FVP4A 23FVP4, 23DYP41 , 23ESP4,
23EWP41, Al
23ETP41 , 23FMP4,
23DVP4A 23DVP4, 23DZP41 ,
23HMP4
23DWP4 23DYP4
23EWP41 , Al 23GHP41 23ESP41 , 23FVP41
23FWP4 23FWP4A
23FWP4A, 23DLP4 1 , A I ,
23ENP41, 23FBP41 23FWP4, 23DLP41 , AI,
23DZP4
23EWP4, A, 23DVP41, Al
23ENP41 , 23FBP41
23EAP4
23BVP41 , 23CTP41
23GBP4
22VAMP4, 23HFP4, A
23ECP4
23GDP4
23DVP4, A, 23DZP41 ,
23EDP4
23EWP41, Al
23EFP4
23FCP41, 23FDP41 ,
23GHP4
23DWP41
�
23FHP41, 23GJP41, AI, 23GWP41
23GJP4
22VARP4, 23GJP4A, 23GWP4
23EGP22
Q.
23EKP4
C"'"I\)
23ENP4
23DLP4, A, 23FBP4, 23FWP41, Al
N
J.
23EP4 23EQP4
23FLP4A 23ER P41
Q. Vi
23ERP4
23EQP41
Q
23ESP4
23DYP41 , 23ETP41 ,
23GJP4A
23GKP4 23GP4
23GRP4 23GSP4
22VARP4, 23GJP4, 23GWP4
23GRP41
23AVP4, 23CP4, A, 23HP4, 23ADP41 , 23AYP41 , 23BSP41, 23SP41
23GKP41
23HZP41
C�)
N
23ETP4
23FVP4, A, 23GTP4 23GTP4, 23FMP41 ,
23GTP4
23ETP4, 23FMP41 23HMP41, 23HXP41
23HMP41 , 23HXP41
23GVP4
Vi
23EWP4
23EWP4A, 23DZP4,
...
CIIl
23DVP41, Al
:=;)
23EWP4A 23EWP4, 23DZP4,
I-
23DVP41, Al
23GWP4 23GXP4 23HBP4 23HFP4
22VARP4, 23GJP4, A 23HQP41
22VAMP4, 23HFP4A,
...
23EYP4
a.::
23EZP4
:=;) IU
23FAP4 23FBP4
23DLP4, A, 23ENP4,
Q.
23FWP41 , Al
23FCP4
22VASP4, 23FDP4,
23HFP4A
23HGP4 23HKP4 23HMP4
23GBP4 22VAMP4, 23HFP4,
23GBP4 22VATP4, 23JEP4
23DYP41 , 23ESP41 ,
�
23FHP4, 23GJP4, A,
23ETP41, 23FMP41 ,
23GWP4, 23EFP41
23FVP4 1 , AI, 23GTP41,
23FDP4
22VASP4, 23FCP4,
23HXP41
23FHP4, 23GJP4, A,
23H P4
23AVP4, 23CP4, A,
23GWP4, 23EFP41
23DXP4, 23AYP41,
23FHP4
22VASP4, 23FCP4,
23BSP41 , 23SP41
23FDP4, 23GJP4, A,
23HQP4
23GXP41
23GWP4, 23EFP41
23HRP4
23HWP4
23FKP4
23HTP4
23FLP4
23DKP41 , 23GTP41
23H UP4
23HUP4A, 23JLP4
23FMP4
23ETP41, 23GTP41,
23H UP4A 23HUP4, 23JLP4
23HMP41, 23HXP4
23HWP4
23HWP4A
23FNP4 23FP4
23FP4A, 23VP41
23HWP4A 23HXP4
23HWP4 23ETP41, 23FMP4,
23FP4A
23FP4, 23VP41
23GTP41 , 23HMP41
23FRP4
23JFP41
23H ZP4
23GSP41 , 23HGP41
23FSP4
23JBP4
23JAP4
58
To Replace Use
To Replace Use
23JBP4
23XP4
23AFP4, 23BMP4, 23BTP4,
23JEP4
22VATP4, 23HGP4,
23YP4, 23CDP41
23JFP4
2 3 H Z P4 1 23FRP41
23YP4
23AFP4, 23BMP4, 23BTP4, 23XP4, 23CDP41
23JGP4
23ZP4
23BKP4
23JLP4
23HUP4,A
24ADP4
24CP4 1 , A I , B * I , 24TP41 ,
23JP4
24VP41, Al
23JRP4
24AEP4
23KP4
2 3 K P4A
24AHP4
24ALP4, 24AQP41,
23K P4A 23MP4
23KP4 23MP4A, 23ALP41 ,
23AMP41, 23CQP41 ,
24AJP4 24ALP4
24AWP41 , 24AXP41 24ATP4 24AHP4, 24AQP41,
23VP41
24AWP41 , 24AXP41
23MP4A
23MP4, 23ALP41 ,
24AMP4
23AMP41, 23CQP41 ,
24ANP4
24DP4, A, 24AEP4*,
23VP41
24ASP4* 1, 24AUP4*,
�
23NP4
24YP41, 24ZP4*1
23RP4
23BRP4, 23BYP4, 23CSP4, 24AP4
24AP4A
"0
23CUP41, 23DP41
24AP4A
24AP4
n
23SP4
23AYP4, 23BSP4, 23AVP4 1 , 23CP41 , AI , 23DXP4 1 , 23UP41
24AP4B 24AQP4
24AP4
24AHP4 1 , 24ALP4 1 , 24AWP41 , 24AXP41
-t
C ;0
'"
23TP4 23UP4
23ACP4 23BQP4, 23CBP4
24ASP4 24ATP4
24AEP41 , 24AUP41 24AJP41
-t
C
23VABP22 23VAXP22, 23VBSP22
24AUP4
m
23VACP22 23VALP22, 23VANP22,
24AVP4
'" VI
23VAQP22, 23VARP22, 24AWP4
23VBRP22, 23VBTP22
24AXP4
24AHP41 , 24ALP41 ,
23VALP22 23VANP22, 23VARP22
24AQP41 , 24AWP41
CAl
23VAMP22
24BAP4
'-
23VANP22 23VALP22, 23VARP22
24BCP4
m "0
23VAQP22 23VAMP22, 23VDBP22, 23VBRP22
24BEP4 24BP4
t
23VARP22 23VALP22, 23VANP22
24CP4
24CP4A, 24ADP4, 24QP4,
23VATP22 23VALP22 23VAXP22 23VABP22, 23VALP22,
24TP4, 24VP4, A, 24CP4B*
10
"0
23VBSP22
24CP4A
24CP4, 24ADP4, 24QP4,
23VAYP22 23VACP22, 23VAQP22,
24TP4 24VP4, A,
�
23VBAP22
24CP4B*
23VAZP22
24CP4B
24CP4**, A**, 24ADP4**,
23VBAP22 23VACP22, 23VAMP22,
24QP4**, 24TP4**,
23VAQP22
24VP4**, A**
23VBCP22 23VAQP22, 23VBDP22 23VBDP22 23VAQP22, 23VBAP22
24DP4
24DP4A, 24ANP4, 24AEP4*, 24ASP4* 1 ,
23VBKP22
24AUP4*, 24YP41 ,
23VBNP22 23VAYP22, 23VBCP22,
24ZP4* 1
23VBKP22, 25BKP22
24DP4A
24DP4, 24ANP4, 24AEP4*,
23VBRP22 23VAMP22, 23VAQP22
24ASP4*1, 24AUP4*,
23VBSP22 23VABP22, 23VAXP22
24YP41 , 24ZP4 * 1
23VBTP22 23VP4
23VACP22, 23VAQP22 23ALP41, 23AMP41 ,
23CQP41, 23MP41, Al
24QP4
24ADP4, 24CP4, A, 24TP4, 24VP4, 24VP4A, 24CP4B*
23WP4
23FP4A
S9
To R.eplace Use
To R.eplace Use
24TP4
24ADP4, 24CP4, 24CP4A, 25BFP22
23VACP22, 23VAlP22,
24QP4, 24VP4, 24VP4A,
23VANP22, 23VAQP22,
24CP4B*
23VARP22, 23VBTP22
24VP4
24VP4A, 24ADP4, 24CP4, 25BGP22 23VAlP22, 23VANP22,
A, 24QP4, 24TP4,
23VARP22
24CP4B*
25BHP22 23VAlP22, 23VANP22,
24VP4A
24VP4, 24ADP4, 24CP4,
23VAQP22, 23VARP22,
24CP4A, 24QP4,
23VBRP22
24TP4, 24CP4B*
25BKP22
24XP4
25BMP22 23VAlP22, 23VANP22,
24YP4
24ANP4, 24AUP4, 24DP4,
23VARP22
A, 24ZP4, 24AEP4*,
25BP22
25YP22
24ASP41
25BP22A 25YP22
24ZP4
24AEP4, 24ANP4,
25DP4
�
24AUP4, 24DP4, 24DP4A, 24YP4,
25FP22 25FP22A
25FP22A 25FP22
N N A.
25ABP22
24ASP41 23VAlP22, 23VANP22,
23VARP22, 25XP22
25GP22A
23VABP22, 23VAlP22, 23VANP22, 23VARP22, 25ABP22, 25ANP22,
N lit
25AEP22
25YP22
25BAP22, 25GP22
N
25AFP22
23VAlP22, 23VANP22,
25HP4
JA.
25AJP22
23VARP22, 25BMP22 23VAlP22, 23VANP22,
25JP4 25KP4
25lP41
t N
23VAQP22, 23VARP22, 23VBRP22, 25BHP22
25lP4 25TP4
25KP41
25AKP22
25VABP22 25VADP22, 25VAJP22,
25AlP22
25AlP22A
25VAMP22
'w "
25AlP22A 25AlP22
25VACP22 25VAFP22, 25VAQP22
all
25AMP22
25VADP22 25VABP22, 25VBMP22
:::> tw GI:: :::>
25ANP22 25AP22
23VABP22, 23VAlP22, 23VANP22, 23VARP22, 25BAP22
23VAlP22, 23VANP22,
25VAEP22 25VAFP22 25VAGP22 25VAJP22
25VABP22, 25VADP22 25VACP22 25VBEP22 25VABP22
t-
23VARP22, 25ABP22,
25VAKP22 25VBlP22
U
25XP22
25VAMP22 25VABP22
A.
25AP22A 23VAlP22, 23VANP22,
25VAQP22 25VACP22
23VARP22, 25ABP22,
25VAXP22
�
25XP22
25VAZP22 25VBGP22
25AQP22 23VABP22, 23VAXP22
25VBEP22 25VAGP22
25AWP22 23VACP22, 23VAlP22,
25VBGP22 25VAZP22
23VANP22, 23VAQP22, 25VBJP22 25VAXP22
23VARP22, 23VBNP22, 25VBKP22 25VAGP22, 25VBEP22
23VBTP22, 25BKP22
25VBlP22 25VAKP22
25AYP22
25VBMP22 25VABP22, 25VADP22
25AZP22 23VACP22, 23VAlP22,
25WP22
23VABP22, 23VAlP22,
23VANP22, 23VAQP22,
23VANP22, 23VARP22,
23VARP22, 23VBPR22,
25ABP22, 25ANP22
23VBTP22
25XP22
23VAlP22, 23VANP22,
25BAP22 23VABP22, 23VAlP22,
23VARP22, 25ABP22,
23VAXP22, 25ANP22,
25BGP22, 25GP22A
25GP22A
25YP22
25BP22,A
25BCP22
23VANP22
25ZP22
23VAlP22, 23VANP22,
25BDP22
23VARP22
60
To R.eplace Use
To R.eplace Use
1 9EXP222, 1 9GVP222
1 9EXP222, 1 9GVP222
27YP4
490AMB22 1 9EXP222, 1 9GVP222
2 7 A F P4 1
490ANB22 1 9EXP222, 1 9GVP222
27AEP4
27ZP41
490ARB22 1 9EYP222, 1 9GWP222
27AFP4
27AOP41
490ASB22 1 9EYP222, 1 9GWP22
27AGP4
27ABP4, 27AOP4, 27AFP41 490BAB22 1 9GVP22, 1 9GXP22
490BCB22 1 9GWP22, 1 9EYP22
27EP4
27GP4
490BOB22 19GWP222, 1 9GYP222
Jo "'"27GP4 27LP4 27MP4 27NP4 27RP4
27EP4
27RP4 27NP4, 27RP4A*
490BGB22- 1 9GVP22, 1 9EXP22
490BHB22 19GWP22, 1 9EYP22
490BNB22 1 9JWP22
/
490BRB22 1 9EYP22, 1 9GWP22
490BUB22 1 8VAKP22
I
27RP4A
27NP4, 27RP4*
490BVB22 - 1 9JWP22
�
27SP4
27UP4*, 27VP4*, 27XP4* 490BXB22 1 9JWP22
27UP4 27VP4 27WP4 27XP4 27YP4 27ZP4 30BP4 230RB4 3 1 0AVB4 370AB22 370CB22 400AFB4A 470ACB4 490AB22 490ACB22 490AOB22 490AEB22 490AFB22 490AGB22 490AHB22
490AHB22A
27SP4, 27VP4*, 27XP4* 27XP4
27ACP4 27AEP41
9WP4 1 2CNP4 1 5AEP44 1 5AEP22, 1 5N P22 1 6 BGP4 1 9AYP4 19EXP222, 1 9GYP222 1 9EXP222, 1 9GYP222 1 9EXP222, 1 9GYP222 1 9EYP222, 1 9GWP222 1 9EYP222, 1 9GWP222 1 9EYP222, 1 9GWP222 1 9EXP222, 1 9GYP222 1 9EXP222, 1 9GVP22
49OCB22
1 9EXP222, 1 9GVP222
."
4900B22
1 9EXP222, 1 9GVP222
n
490EB22 490EB22A
1 9EXP222, 19GVP222 1 9EXP222, 1 9GVP222
-t c: ;IaI
490FB22
1 9EXP222, 1 9GVP222
'"
490GB22 490HB22
1 9EXP222, 1 9GVP222 1 9EXP22, 1 9GVP22
-t
c:
490J822 " 1 9EXP22, 1 9GVP22
II:ICI
490JB22A 490K822 490KB22A 490LB22 490MB22
1 9EXP22, 19GVP22 1 9EXP222, 1 9GVP222 1 9EXP222, 1 9GVP222 1 9EXP222, 1 9GVP222 1 9EXP222, 1 9GVP222
)
'" '"
...
>
490NB22 490RB22 490SB22 490TB22
1 9EYP222, 1 9GWP222 1 9EYP222, 1 9GWP222
I
1 9EYP222, 1 9GWP222
1 9EYP222, 1 9GWP222
/
II:ICI ."
t
-0
490VB22 490WB22
1 9EXP222, 1 9GVP222 1 9EYP222, 1 9GWP222
0 N
II:ICI
490UB22
1 9EXP222, 1 9GVP222
490XB22
1 9EYP222, 1 9GWP222
490AJB22 1 9EYP22, 1 9GWP22 490AJ B22A 1 9EYP22, 1 9GWP22
490YB22 490ZB22
1 9EYP222, 1 9GWP222 1 9EYP222, 1 9GWP222
�
Type
80P4 9ACP4 9AGP4 9QP4,A 9TP4 9UP4 9VP4 9WP4 9YP4
Voltage
1 50V 1 00V 1 00V 200V 50V 1 00V 1 00V 1 00V 1 00V
LOW Eg
Type
Voltage
1 0ARP4 1 0ASP4 1 1 AP4 1 1 BP4 1 1 0P4 1 1 GP4 1 1 HP4 1 1 J P4 1 1 KP4
1 40V 1 00V 1 50V 1 50V 50V 1 35V 1 50V 50V 50V
Type
1 1 MP4 1 1 QP4 1 1 RP4 1 1 UP4 1 2BEP4 1 2 BFP4 1 2BGP4 1 2BKP4 1 2BLP4
Voltage
1 35V 1 00V 1 40V 1 40V 30V 200V 50V 50V 30V
61
Type
1 2BMP4 1 2BNP4 1 2BQP4 1 2BRP4 1 2BTP4 1 2 B UP4 1 2BVP4 1 2BZP4 1 2CBP4 1 2CDP4 1 2CEP4 1 2CFP4 1 2CNP4 1 2CQP4 1 2CSP4 1 2CTP4 1 2CVP4 1 2CWP4 1 2CZP4 1 2DEP4 1 2DFP4 1 2DGP4 1 2DHP4 1 2DKP4 1 2DQP4 1 2VABP4 1 3AP4 1 3DP4 1 4ACP4 1 4AEP4 1 4AJP4 1 4ARP4 1 4AUP4 1 4AWP4 1 5ADP4 l SJP4 1 6ATP4 1 6AVP4 1 6AWP4 1 6AZP4 1 6BAP4 1 6BEP4 1 6BNP4 16BSP4 1 6BUP4 16BXP4 1 6BYP4 1 6CFP4 l 6CHP4 1 6CNP4 1 6CQP4 1 6CWP4
62
LOW Eg2
Voltage
1 40V 250V 50V 30V 50V 50V 50V I OOV 30V 1 40V I OOV 200V 200V 40V l OOV I OOV I OOV 1 40V l OOV l OOV 200V SOV SOV l 40V SOV SOV SOV SOV l 2SV l l OV 250V SOV SOV SOV SOV SOV SOV 3SV l SOV l SOV SOV SOV SOV SOV l OOV 35V l OOV l 40V 30V l OOV l 40V l OOV
Type
1 6CXP4 1 6DCP4A 1 6VABP4 1 7BMP4 1 7BNP4 1 7CMP4 1 7CNP4 1 7CRP4 1 7CXP4 1 7DQP4 1 7EHP4 1 7ELP4 1 7EMP4 1 9ACP4 1 9AEP4 1 9AJP4 1 9BDP4 1 9BNP4 1 9BQP4 1 9CDP4 1 9CFP4 1 9CHP4 1 9CKP4 1 9CLP4 1 9CMP4 1 9CQP4 1 9CUP4 1 9CVP4 1 9CXP4 1 9DBP4 1 9DFP4 1 9DHP4 1 9DLP4 1 9D5P4 1 9DUP4 1 9DVP4 1 9DYP4 1 9DZP4 1 9EAP4 1 9ECP4 1 9EFP4 1 9EGP4 1 9EJP4 1 9EKP4 1 9ENP4 1 9E5P4 1 9ETP4 1 9EZP4 1 9FBP4 1 9FEP4 1 9GHP4 1 9GMP4
Voltage Type
l OOV 1 40V 50V l l OV 1 1 0V 50V 50V 50V 50V 50V 50V 50V 50V 50V I OOV SOV SOV SOV SOV SOV SOV SOV SOV 35V 30V SOV 65V SOV 45V 40V 65V SOV 50V 50V SOV 1 50V 50V l SOV SOV l SOV SOV SOV 30V 4SV SOV SOV SOV 4SV SOV 30V SOV SOV
1 9HAP4 1 9HGP4 1 9VCLP4 1 9VCMP4
20ABP4 20ADP4 20AHP4 20AZP4 20RP4 20SP4 20YP4 20ZP4 2 1 CGP4 2 1 CHP4 2 l CXP4 21 DSP4 2 1 FMP4 21 FUP4 2 l FYP4 2 1 GAP4 2 1 GBP4 2 1 GEP4 2 1 GHP4 2 1 GKP4 2 1 GTP4 22VARP4 2 2 VASP4 23ANP4 23ATP4 23AWP4 23BGP4 23BHP4 23BJP4 23BKP4 23BLP4 23DAP4 23DBP4 23DCP4 23DLP4 23DNP4 23DSP4 23DWP4 23ECP4 23EFP4 23ENP4 23EP4 23EYP4 23EZP4 23FBP4 23FCP4 23FDP4 23FHP4
Voltage
50V 1 50V 50V 50V 50V 35V 1 50V 30V 50V 30V 50V 50V l l OV 1 1 0V 50V 50V 50V 50V 50V 30V 50V 50V 30V SOV SOV SOV 50V SOV SOV 50V SOV SOV 50V 50V SOV SOV 50V SOV 50V 3SV 6SV 200V 3SV SOV SOV 50V 3SV SOV 50V SOV SOV SOV
Type
23FRP4 23FWP4 23GHP4 23GJP4 23GRP4 23GUP4 23GVP4 23GWP4
LOW Eg2
Voltage Type
Voltage Type
50V 50V 200V 50V 30V 30V 45V 50V
23HKP4 23HRP4 23H UP4,A, 23JlP4 23JRP4 23JFP4 23JGP4
1 50V 30V 30V 30V 30V 50V 30V
23JP4 23NP4 23ZP4 24AJP4 24ATP4 24BAP4 25HP4
Voltage
50V 50V 50V 50V 50V 50V 50V
Type
9ACP4 9AGP4 9QP4,A 9UP4 9VP4 9WP4 9YP4 1 0ADP4 l 1 NP4 l 1 QP4 l 1WP22 1 2AP4 1 2 BFP4 1 2 BJ P4
ODD FILAMENT VOLTAGES
Voltage Type
Voltage Type
1 2 .0V 1 2.0V 4.7V 1 2.6V 1 2.6V 1 2 .0V 1 2.6V BAV 1 1 .0V 1 2.6V 1 3.BV 2.5V 4.2V 4.2V
1 2BRP4 1 2 BTP4 1 2BVP4 1 2BZP4 1 2CEP4 1 2CFP4 1 2CNP4 1 2CVP4 1 2CP4 1 2CZP4 1 4ATP4 1 6CNP4 1 6CXP4
1 2 .6V 1 2.6V 1 2.6V 1 2.0V 1 2.6V 4.2V 4.2V 1 2.0V 2.5V 1 2.6V BAV 1 2.0V 1 2.0V
1 7CDP4 1 7DAP4 1 7DEP4 1 7DRP4 1 9ABP4 1 9AEP4 1 9BUP4 1 9FWP4 21 EAP4 21 EVP4 23BZP4 23CAP4 23EHP4 24AVP4
Voltage
BAV 2.6BV 2.35V 2.68V 2.6BV 1 2.6V 2.2V 4.2V 2.35V 2.6BV BAV BAV BAV 2.35V
63
Section 3
CROSS REFERENCE OF SUBMINIATURE TUBES
This section l ists submi n iature tubes and recommended substi tutes. Tubes are l isted i n numerical-alphabetical order, with the substitutes shown in the right-hand column.
To use this section, locate the tube type to be rep l aced in the left-hand column. Then refer to the right-hand column for the substitute. The substitutes l isted include only those tubes which have s i m ilar, or improved, characteristics and can be i n serted d i rectly into the socket. No rewiring or mechan ical changes are needed, a l though the associated service controls may have to be readjusted. When no substitutes are shown, none are recomme n d e d .
Substitutes marked with an asterisk (*) should be used only
when the fi lament of the original tube is w i red i n a paral lel ci rcu it. Those tubes marked w i th a section symbol (�) may not work in al l circuits.
64
To Replace Use
To Replace Use
l ACS
l V5
6K4
6K4A, 6778
1 AD4
6K4A
6778
l ADS
l WS
6W2
l AES
6X2
6W2*
l AG4
RK6l
CK1 054
l AGS
2E4 l , 2E42, CKSSI AXA,
CK501
l AH4
lAJS*, lAKS* l AK4*
CKSO I AX CK502AX
2E3S, 2E36
1 AJS
1 AGS*, 1 AKS*
CK503AX CK51 8AX, 5854
l AK4
lAH4*
C K50SAX
l AKS
lAGS*, l AJS*
CK506AX
l C8
l E8
CK507AX
1 03
1 E8
l C8
CK509AX CK5 l 0AX
CK51 SBX
�
l Q6
1 56
1 T6
1 T2
1 T6
1 56
CK5l l X
'"
CK5l 2AX CK574AX, 6281
c:
CK5l 5BX CK5l 6AX
CKS09AX
alii
l VS 1 V6 l WS 2BS 2B24 2B24A 2C27 2C28
2E27 2E29
l ACS l ADS 2B24A
CK5l 8AX CK503AX
Z
CK520AX CKS21 AX
-f
CK522AX CKS28AX, 6088
c:
CK523AX CKS24AX
;mIaI
CKS2SAX C KS26AX
CKS37AX
-f
c:
CKS27AX
malii
CKS28AX CKS22AX, 6088
VI
2E3l
2E32, CKSS3AXA
CK529AX CKS3SAX
2E32
2E3 l , CKSS3AXA
CKS31 DX
-
2E35
2E36, CKS02AX
CKS32DX
2E36
2E3S, CKS02AX
CKS33AX CKS36AX
n
VI
2E4l
l AGS, 2E42
CKS34AX
I
2E42
l AG5, 2E4l
CK53SAX CKS29AX
n
2G2l
2G22, CKSSSAX
CK536AX CKS33AX
VI
2G22 2L2
2G2 l , CKSSSAX
CKS37AX CK538DX
CKS26AX
..,
3FW7
CK539DX
><
3FX7
CK54 1 DX
6AD4
S637, S71 9, S71 9A,
CK542DX CKS42DX5
�
5898
CK542DX5 CKS42DX
6AK4
CKS43DX
6AZ5
CKS44DX
6AZ6
CKS45DX
6BAS
CK546DX 65 1 9
6BF7
6BF7A, 6BF7W, 6BG7,
CKS47DX
602 1 , 602 1 A, 602 1 WA
CKS48DX 64 1 8
6BF7A
6BF7, 6BF7W, 6BG7, 602 1 , CK549DX 64 1 9
602 1 A, 6021 WA
CK551 AXA l AGS
6BF7W
602 1 , 602 1 A, 602 1 WA
CK5S3AXA 2E3 l , 2E32
6BG7
6BF7, 6BF7A, 6BF7W,
CK5SSAX 2G2 l , 2G22
602 1 , 602 1 A, 602 1 WA
CK5S6AX 5676, 6050
6FW7
CK568AX S677
6FX7
CK569AX S678
* Parallel-filament circuits.
� May not work in all circuits.
6S
To Replace Use
To Replace Use
CK570AX 5697
5676
CK556AX, 6050
CK571 AX 5886
5677
CK568AX
CK573AX 6029
5678
CK569AX
CK574AX CK51 2AX, 6281
5697
CK570AX
CK600AX
5702
5702WA, 5702WB, 6 1 48,
CK605CX CK623CX, 5702, 5702WA,
CK605CX, CK623CX,
5702WB, 6 1 48, 6540
6540
CK606BX 5704, 5704WA
5702WA
5702WB, 6 1 48, 6540
CK608CX 5703, 5703WA, 5703WB,
5702WB
6 1 49
5703
5703WA, 5703WB, 61 49,
CK6 1 9CX 5744, 5744WA, 5744WB,
CK608CX
6151
5703WA
5703WB, 6 1 49
�
CK623CX
CK605CX, 5702, 5702WA, 5702WB, 6 1 48, 6540
5703WB 5704
5704WA, CK606BX
C00O-00
'"I
CK628 CK 1 036 C K 1 037 CK1 038
6247, 6247WA 6436 6437, 5950� 584 1 �
><
0
CK1 039 C K 1 042
6438 6659
...
C K 1 045
6542
'" U
CK1 050 CK1 050A
CK1 050A, 7323, 7979 C K 1 050, 7323, 7979
5704WA 571 8 57 1 8A 571 9 571 9A 5744
5744WA 5744WB
57 1 8A 571 8 57 1 9A 571 9 5744WA, 5744WB, 6 1 5 1 ,
CK6 1 9CX 5744WB, 6 1 5 1
CK1 054
5783
5783WA, 5783WB
C K 1 06 1
5783WA
5783WB
V)
CK 1 068
I:Q
CK 1 069
j
CK 1 089
CK 1 301
CK1301A
5783WB 5784 5784WA 5784WB
5784WA, 5784WB, 6 1 50 5784WB, 6 1 50
ex: j
CK1 301 A CK 1 362
CK1 30 1
t-
C K 1 363
:=!
5633
5634
Z
5634
5633
5635 5636
5636A
I:Q
j
5636A
'"
5637
571 9, 571 9A, 5898
5785 5787 5787WA 5787WB 5797 5798 5799 5800 580 1
5787WA, 5787WB 5787WB
5638
�
5639
5639A, 5639WA
5802 5828
5639A
5639WA
5829
5829WA
5639WA
5829WA
5640
5902, 5902A, 5902WA
5840
5840A
5641
564 1 A, 7436*
5840A
564 1 A
7436*
584 1
CK 1 038�
5642
585 1
6397*
5643
5854
CK503AX
5644
5644A
5873
5644A
5875
5645
5884
5646
5885
5647
5647A
5886
CK57 1 AX
5647A
5889
5672
5896
5896A, 6052
66
* Parallel-filament circuits.
May not work in all circuits.
To Replace Use
To Replace Use
5896A
6052
6 1 1 2A
61 1 2WA
5897
571 8, 57 1 8A
61 1 2WA
5898
5637, 571 9, 571 9A
61 19
5899
5899A
6121
5899A
5899
6 1 43
5900
5899, 5899A
6 1 47
6397
5901
5840, 5840A
6 1 48
5702WA, 5702WB, 6540
5902
5902A, 5902WA
6 1 49
5703WA, 5703WB
5902A
5902WA
6 1 50
5784WA, 5784WB
5902WA
6151
5744WA, 5744WB
5903
6053
6 1 52
5904
6055
6 1 69
5905
6 1 93
5906 5907
6056
6 1 95 6205
6205A
�
5908 591 1
6008
6205A 6206
6206A
'" c:
59 1 3
6007
6206A
I::JI
59 1 6
62 1 3
5935
622 1
Z
5947 5950
CK 1 037�, 6437�
6222 6223
6225, 7432
>-4
5967
6224
c:
5968 5969
6225 6245
6223, 7432
;m:ICI
5970
6247
6247WA
-4
597 1 5972 5975
6247WA 6286
CK574AX
c:
mI::JI
628 1
'"
5977
5977A
6308
5977A
6320
632 1
VI
5987 5995
632 1 6352
6320
00 0--0
6007 6008
591 3 591 1
6373 6375
>0I -
602 1
602 1 A, 602 1 WA
6391
7434
0-
602 1 A
602 1 WA
6397
6 1 47, 585 1 *
VI
-0
602 1 WA
64 1 8
6026
64 1 9
�
6029
CK573AX
6436
CK1 036
6049
6437
C K 1 037, 5950�
6050
5676, CK556AX
6438
CK1 039
6051
6487
6052
5896, 5896A
6488
7433
6053
5903
6489
6055
5904
65 1 9
6056
5907
6526
6088
CK522AX, CK528AX
6533
6533WA
6092
6533WA
61 10
6540
5702WA, 5702WB, 6 1 48
61 1 1
61 1 1 A, 6 1 1 1 WA
6542
61 1 1A
6 1 1 1 WA
66 1 1
61 1 1 WA
66 1 2
61 12
6 1 1 2A, 6 1 1 2 WA
6659
C K 1 042
* Parallel-filament circuits.
� May not work in all circuifs.
67
To Replace Use
6690
6778
6788
6814
6832
6872
6943
6944
6945
6946
6947
6948
6977
6999
�
7079
7083
0
7099
M
an
7231
CO
7232
J0-
'() '()
7246 7323 7327
7401
7432
an II.!
7433
CO
7434
;:) t-
7435 7436
II.!
;:)
7437 7438
t-
7550
7626
Z
7759
7760
7761
CO
;:)
an
�
To Replace Use
7762 78 1 3 7887 7888 7889
7962 7963 7979 7994 7995 8064 8070 807 1 8096 8 1 03 8 1 85 8 1 86 821 0 821 1 82 1 3 82 1 6 8254 83 1 9 841 4 84 1 7 8444 851 7 8522 8524 8525 8526 8527 8528 8529 8530
68
* Parallel�fllament circuits.
May not work in all circuits.
Section 4 INDUSTRIAL SUBSTITUTES FOR
RECEIVING TUBES
In this section a re those American receiving tubes that can be replaced by industrial types. The rece iving tubes a re listed in the left-hand column and the ir industrial substitutes in the right-hand column. Each tube listed has one or more substitutes. If a tube type does not appea r in the listing, an industrial substitute is not recom mended.
This substitution list should be used in one di rection only-that is, an industrial type to replace a standard type. If the equipment is a l ready des igned for an industrial tube, a standard receiving tube will not usually work as efficiently or as long as the origina l .
Substitutes marked w ith an asteris k ( * ) should b e used only
when the fi l ament of the original tube is wired in a parallel circuit.
69
To Replace Use
To Replace Use
OA2
OA2WA, 6073, 6626
6A57G
6A57GYB, 60BOWA,
OA4G
1 267,WTT1 32
6080WB, 6520
OB2
OB2WA, 6074, 6627
6AT6
6066
OC3
OC3W, VR 1 05W, WT269
6AU6
6AU6WA, 6AU6WB, 6 1 36
003
003W, VR1 50W, WT294
6AV6
6066
OZ4 OZ4A
1 003, WTTl 1 4 1 003
6BA5 6BA6
5638 6BA6W, 6BA6WA, 5749,
1 F4
2101
6660, 7496
1 R4
1 294
6BE6
6BE6W, 5750, 7502*
1 R5
1 R5WA
6BH6
6265*, 666 1 , 7693
1 T4
1 T4WA
6BJ6
6662, 7694
1 U4
1 U4WA, 5910
6BL8
7643*
1 U5
1 U5WA
6BQ5
7320
�
2A3 2A6
2A3W, 5930 1 659
6BR7 6BW6
6059 6061
...
V)
-0 N I 0
...J t-
V)
:) C
2X2 2X2A 3B4 3B7 306 3Q5GT 3V4 5R4GY
5U4G
5V4G 5Y3GT
2B2 1 , 879 2B21 384WA 1 291 1 299 WT389 3V4WA 5R4WGA, WGB, WGY,
WGYA, 274B
5U4WG, WGB, 593 1 , WTT 1 3 5
274
5Y3WGT, WGTA, WGTB,
6C4
6C5 6C6
6C86 6CH6 6Cl6 6CQ6 6CW4 6CY5 6086 60J8 60K6
6C4W, 6C4WA, 61 00, 61 35*
WT390 1 22 1 , 1 223, 7700,
WTT 1 3 1 6676, 7732 6 1 32, 7499 20 1 4, 6 1 97, 6297, 6677 6065 7895 77 1 7, 8 1 1 3 6954 6922* 8 1 36
Z
6087, 6 1 06, 6853,
6054
7895
-;'
WTT202
6F6
1 61 1 , 1 621
C)
5Z3
Z
5Z4
:>
6AB4
1 275, WT270X 6087 6664
6G6G 6GE8 6H6
WTT 1 30 7734 6H6WGT, WTT 1 03, WT261
w
6AB7
1 853
6J4
6J4W, WA, 8532
U w
6ACl
6AG5
6AClW, 6AC7WA, 6AClY, 6J5
1 852, 6134
6J6
6AG5WA, 6 1 86
6J5WGT, WTT 1 29 6J6W, 6J6WA, 5964, 6030,
6045*, 6099, 6 1 0 1 ,
�
6AG7
6AG7W
6927*
6AH6
6AH6WA, 6485
6J7
1 223, 1 620, 7000
6AJ5
7755
6K5
6 K5WGT
6AK5
6AK5W, WA, WB, 403A,
6K7
5732
1 220, 5654, 5591 *,
6K8
WTT128
6096, 6968
6L6
6L6W, WA, WGA, WGB,
6AL5
6AL5W, 5726, 6058, 6097,
WGT, 1 622, 5932,
6663, 763 1 , 027
WT6
6AM5
65 1 6
6L7
1 6 1 2, 1620
6AM6
6064, 7498
6N7
5694
6AN5
6AN5WA
6N7GT
WTT 1 25
6AQ5
6AQ5W, 6005, 6095, 6669 6Q5G
884, WT245
6AR6
6AR6WA, 6098, 6384,
6Q7
6118
7756
65A7
65A7WGT, 5961
6AS6
6AS6W, 409A, 5725,
65Cl
1 655
61 87*, 7752
6SG7
6006
10
* Parallel�filament circuits.
To Replace Use
To Replace Use
6SJ7
6SJ7W, 6SJ7WGT,
1 2AU7
1 2AU7W, WA, 58 1 4*, A,
6SJ7WGTY, 5693,
581 4WA*, 5963, 6067,
WTT 1 22
6 1 89, 6680, 73 1 6, 7489,
6SK7
6SK7W, 6SK7WA,
7730
6SK7WGT, 6 1 37
1 2AX7
1 2AX7WA, 5751 *,
6SL7
6SL7W, 6SL7WGT, 5691 * ,
575 1 WA*, 6057, 668 1 ,
61 1 3
7494, 7729
6SN7
6SN7W, 6SN7WGT,
1 2AY7
6072*
6SN7WGTA,
1 2BH7
691 3
5692
1 2BR7
8447
6SQ7
6SQ7W
1 2BY7
7733, 8448
6SU7
6SU7WGT, 6 1 88
1 2C8
1 664, 5660
6U6
6 U6WGT
1 2J5
1 2J5WGT
6U8
1 252, 6678, 773 1
1 2 L6GT
1 632*
6V6
5871 , 71 84, WTT 1 23
1 2L8GT
1 644
�
6X4
6X4W, WA, 6063, 6202,
1 2SC7
1 634
WTT 1 00
1 2SK7
566 1
6X5
6X5W, WGT, 5852*,
1 2SL7GT
2C52*
WT308
1 2Z3
H250
""
n ""
6Y7G
1 635
1 4C7
1 280
!5
6Z4
WT263
1 4GT8
7724
Z
7A6 7AB7
5679 1 204
25B6G 25L6GT
5824 6046
t;\
7AJ7 7C4 7E5 7F8 7G7 7G8 7K7
1 273
1 203, 1 203A 1 201 7F8W 1 232 1 206 WTT 1 24
25W6GT 25Z6 26E6G
6046 25Z6WGT 26E6WG, 26E6WGB
Z
C C
VI
26Z5 28D7 SOBS 80
26Z5W 28D7W, 1 238 WTT 1 26 21 3B, RE1 , WT270
-t
;;
r-
7Y4
1 274*
81
RE2
1 2A6
1 2A6GTY, 5659
83
WT301
0-
1 2AT7
1 2AT7WA , 1 2AT7WB,
1 1 7N7GT WTTl 1 5
V'I-
6060, 6201 , 667 1 , 6679, 1 1 7Z6GT WT377
...
7492, 7728, A2900
807
807W, 5933, WA, 801 8
0I1)
0
...
�
* Parallel-fila ment circuits.
71
Se ction 5 COMMU N ICAT IONS AND SPECIAL- PURPOSE TUBES
This sect ion lists communications and special-purpose tubes. The tubes to be replaced are listed in the left-hand column and the recom mended substitutes in the right-ha nd column.
The l isting of a certain tube type as a substitute for another one does not necessari ly mean the reverse is true. Always refer to the left-hand colum n for the orig i nal tube number. Then find the sub stitute in the right-hand colum n .
Substitutes marked with a n asterisk (*) should b e used only
when the fi lament of the orig i nal tube is wired in a parallel c ircuit.
73
To Replace Use
To Replace Use
REI
80
6L6W
6L6WA, 6 L6WGA,
2-1 5A/1 5R 4B30, 1 5R, 8022
6L6WGB, 5932
2A3W
5930
6L6WA
6L6WGA, 6L6WGB, 5932
2B21
2X2A
6L6WGA 6L6WGB, 5932
2C2 1
1 642
6L6WGB
5881
2C22
7 1 93
6L6WGT
5932
2C5 1
2C5 1 W*, 396A, 1 21 9 ,
6Q5G
884, 884W
5670*, 5670WA*, 61 85, 6SJ7W
6SJ7WGT, 6SJ7WGTY
�
6385*
6SJ7WGT 6SJ7W, 6SJ7WGTY
2C5 1 W
1 2 1 9, 5670, 5670WA, 6 1 85 6SJ7WGTY 6SJ7W, 6SJ7WGT
C")
N ...
2021 202 1 W
202 1 W, 5727 5727
t-
2RA3
2 1 3, 2 1 3A
t-
2RA5 2RA6
205 206, 619
...
2RA 1 5
203, 2 1 5
6SK7W 6SK7WA 6SK7WGT 6SL7W 6SL7WGT 6SN7W
6SK7WA, 6SK7WGT 6SK7W, 6SK7WGT 6SK7W, 6SK7WA 6SL7WGT, 6 1 1 3 6SL7W, 6 1 1 3 6SN7WGT, 6SN7WGTA
1&.1
D::
RE2 EL3B
81 601 3
6SN7WGT 6SN7W, 6SN7WGTA 6SN7WGTA 6SN7W, 6SN7WGT
EL3C
4B24, 6484
6SU7WGT 6 1 88
1&.1
'" 0
a..
4-1 25A 4-250A SN4
402 1 , 402 1 A, 6 1 55 4-250/5022, 5022, 6 1 56 1 02 1 , 63 1 P 1
6X4W 6X5W 6X5WGT
6X4WA 6X5WGT 6X5W
D:: J
a..
5R4WGA
5R4WGB, 5R4WGY, 5R4WGYA
EL6B WT6
6 1 8, 61 8P, 5892 6L6
...
5R4WGB 5R4WGY
5R4WGYA 5 R4WGA, 5R4WGB,
5R4WGYA
1 2AT7WA 1 2AT7WB 1 2AU7WA
6201 6201 6 1 89
U
1&.1
5R4WGYA 5R4WGB
1 2AX7WA 572 1 , 6057, 7494, 7729
a..
'"
5U4WG 5U4WGB
5U4WGB, 5931 5931
027 RK28
6AL5 803
oa
5Y3WGT
5Y3WGTA, 5Y3WGTB,
31Z
1 23 1 Z
'"
6087, 6 1 06, 6853
RK3 1
Z
5Y3WGTA 5Y3WGTB, 6087, 6 1 06,
TE36
0
6853
RK39
830B 6754 807
t-
5Y3WGTB 5Y3WGTA, 6087, 6 1 06,
TE40
�
6853
HZ50
U
ELC5F 1 4
6278
RK57
6888 1 2Z3 805
Z
6AClW
6AClWA, 6 1 34
::;)
6AC7WA 6AC7W, 6 1 34
6AG5WA 6 1 86
6AK5W
6AK5WB, 5654
0 U
6AL5W 6AQ5W
5726, 6097 6005, 6095
RK58 T60 HY61 WTT 1 00 WTT 1 02
WTT 1 03
838 8005 807 6X4 5Y3GT 6H6
�
6AR6WA 6AS6W
6098 5725, 6 1 87
C K 1 08 HY1 1 3
77 HY123
6AS7GYB 6080, 6080WA, 6080WB
WTTl 1 4
OZ4
6AU6WA 6AU6WB, 6 1 36
HYl 1 5
HY1 45
6AU6WB 6 1 36
WTT1 1 5
1 1 7N7GT
6BA6W
5749
WTTl 1 7
5557
6BE6W
5750
WTTl 1 8
1 05
6C4W
6C4WA, 61 00, 6 1 35*
WTTl 1 9
1 72
6C4WA
61 00, 6 1 35*
WTT1 22
6SJ7
6J6W
6J6WA, 6099, 6 1 01
HY123
HY1 l3
6J6WA
6099, 6 1 0 1
WTT1 23
6V6
74
� Parallel-filament circuits.
To Replace Use
WTT 1 24 H F 1 25 HY1 25 WTT 1 25 WTT 1 26 WTT 1 27 WTT 1 28 WTT 1 29 WTT 1 30 WTT 1 3 1 WTT 1 32 WTT 1 35 HY1 45 WTT 1 49 VR1 50W HY1 55 WT21 0-0001 WT21 0-0003 WT2 1 0-0004 WT2 1 0-0006 WT21 0-0009 WT21 0-00 1 1 WT2 1 0-00 1 2 WT21 0-00 1 3 WT21 0-00 1 8 WT2 1 0-00 1 9 WT21 0-002 1 WT2 1 0-0025 WT2 l O-0028 WT2 1 0-0029 WT21 0-0037 WT2 1 0-0040 WT2 1 0-0042 WT2 1 0-0048 WT21 0-0060 WT2 1 0-0062 WT21 0-0069 WT21 0-008 1 WT21 0-0082 WT2 1 0-0083 WT21 0-0084 WT2 1 0-0085 WT2 1 0-0087 WT21 0-0088 WT21 0-0089 WT2 1 0-0090 WT21 0-0091 2 1 3B UV2 1 6 UX21 6B WT245 WT246 H250 259A
7K7 203H HY1 55 6N7GT 50B5 833A 6K8 6J5GT 6G6G 6C6 OA4G 5U4G HY1 1 5 1 72 003W HY1 25 2021 884 2050 6H6 6Z4 OC3 80 5Z3 003 83 6X5 1 1 7Z6GT 3Q5GT 6C5 1 1 717/M7GT 6X4 5Y3GT 5U4G OZ4 5557 5557 65J7 6V6 7K7 6N7 50B5 6K8 6J5 6G6G 6C6 OA4G 80 81 81 884 2050 6C6 259B
To Replace Use
259B
259A
WT261
6H6
WT263
6Z4
264
864
WT269
OC3
WT270
80
WT270X
5Z3
274
5V4G
�
274B
5R4GY
WT294
003
n
WT30 1
83
0
WT308
6X5GT
3 1 0A
3 1 0B
3 1 0B
3 1 0A
C
5340
5960
Z
WT377
1 1 7Z6GT
n
WT389
3Q5GT
WT390
6C5
-f
396A
2 C5 1 , 2C5 1 W*, 1 2 1 9*,
0
5670*, 5670WA*, 6 1 85,
Z
6385*
'"
398A
5603
ReI
401 A
5590
'"
403A 403B
6AK5 5591
m."
n
404A 408A
5847 6028
r-
409A 4 1 2A
6A56 6754
."
C
4 1 7A
41 7B, 5842
;10
420A 42 1 A 423A
5755 5998 6 1 40
." 0
'm"
WT606
2021
WL630 WL630A 73 1 A 807
2050 2050 6AK5 807W, 807WA, RK39,
-f .-f..
HY6 1 , 5933, 5933WA, 801 8
to.)
t...
807W
807WA, 5933, 5933WA
to.)
807WA
807W, 5933, 5933WA
0 W
879
2X2
884
884W, 6Q5G
885
2 B4
�
932
1 229
CK1 003
OZ4A
CK1 009
C K 1 009A, BA
Cl 1 06
6AZ6
N U 1 1 06
6AZ6
1 20 1
7E5, 1 20 1 A
1 20 1 A
7E5, 1 201
1 203
7C4, 1 203A
1 203A
7C4, 1 203
� Paral lel-filament circuits.
1S
To ReplClce Use
To ReplClce Use
1 204
7AB7
3873
32
1 206
7G8
392 1
45
1216
5844
3924
24A
1217
6BE6, 59 1 5, 5 9 1 5A, 7036 4465
35
1219
2C5 1 W, 5670, 5670WA,
461 0
36
61 85, 6385*
461 1
37
1 22 1
6C6
461 2
38
1 223
6J7, 1 620, 7000
551 7
l B48, CK 1 0 1 3
1 225
6L7
5556
PJ8
�
1 229
932
5588
6161
1 23 1
7V7
0
123 1 Z
31Z
rt)
0-
1 232
In
oJ
1 273 1 274
0 N
...
1 275 1 280
7G7 7AJ7 7Y4 * 5Z3 1 4Cl
5590 559 1 5603 5654
5659 5660
401 A 403B 398A 6AK5W, 6AK5WB, 1 220,
6096 1 2A6 1 2C8
1 282
7W7
566 1
1 25K7
w
I/)
1 288 1 291
3B7, 1 29 1 , 1 292 3B7, 1288, 1 292
0 A. a:: :;)
1 292 1 294 1 299
3B7, 1 288, 1 291 1 R4 3D6
A.
1 38 1 HQ
6AK5
5667 5670
5687 572 1 5725
889RA 2C51 W, 1 2 1 9, 5670WA,
61 85, 6385* 5687WA 6057, 7494, 7729 6A56W, 6 1 87
...I
1 603
-<
161 1
U
1612
W
A.
In
1613 1614
1 620
oa
1 62 1
6C6, 7700 6F6 6L7 6F6 6L6 6J7, 1 223, 7000 6F6
5726 5727 573 1 5742 5743 5749 5750
6AL5W, 6097 2D2 1 W 955 PJ7 PJ2 1 6BA6W 6BE6W
I/)
1 622
Z 0
1 632 1 634
t-
-<
U
1 642 1 644
1 649
Z :;)
0 U
1 650 1 655 1 657 1 659 1 662
1 664
6L6 1 2L6 1 25C7 2C2 1 1 2L8GT 6ACl 955 65C7 2050, 2050A, 2050W 2A6 3A4 1 2C8
575 1 5755 5759 5762 5763 5767 5771 5794 5794A 581 4 58 1 4A 5824
575 1 WA 420A 501 R 7C24, 5762A 6062 648 1 356 5794A, 6562 6562 58 1 4A, 581 4WA 58 1 4WA 25B6G
�
1 665
1 852
2050, 2050A, 2050W 6ACl
5842 5844
4 1 7A, 4 1 7B 1216
1 853
6AB7
5847
404A
201 3
621 1
587 1
6V6GT
201 4
6CL6, 6 1 97
588 1
6L6WGB, 758 1 , 758 1 A
2050
1 657, 1665, 2050A, 2050W 5894
9903
2050A
1 657, 1665, 2050, 2050W 591 0
l U4, 1 U4WA
2935A
81
59 1 5
6BE6, 1 2 1 7, 591 5A, 7036
384 1
80
591 5A
6BE6, 1 2 1 7, 591 5, 7036
387 1
50
5923
9904
3872
30
5930
2A3W
76
*Paral lel�filament circuits.
To Replace Use
To Replace Use
593 1
5U4WGB
666 1
6BH6
5932
6L6WGA, 6L6WGB
6662
6BJ6
5933
807, 807W, 807WA,
6663
6AL5, 6AL5W, 5726, 6058,
5933WA
6097
5933WA
807, 807W, 807WA, 5933 6664
6AB4
5992
6V6GT*
6669
6AQ5A, 6AQ5W, 6005,
6005
6AQ5W, 6095
6095
6028
408A
6676
6CB6
6058
6AL5W, 5726, 6097
6677
6CL6
6063
6X4, 6X4W, 6X4WA
6678
6U8A
�
6073
OA2WA, 6626
6679
1 2AT7, 1 2AT7WA,
6074
OB2WA, 6627
1 2ATlWB, 6201
n
6075
9907
6680
1 2AU7A, 1 2AU7WA, 61 89,
0
6076
9907R
7730
6077 6078 6079
9906 9906R 9908
668 1 6754
1 2AX7, 1 2AX7WA, 572 1 , 6057, 7494, 7729
TE36, 4 1 2A
C
Z
6080 6080WA 6080WB
6080WA, 6080WB 6080WB 6080WA
6853 6888
5Y3WGT, 5Y3WGTA, 5Y3WGTB, 6087, 6 1 06
TE40
n
6083 6087
9909 5Y3WGTB, 61 06, 6853
6939 6968
7645 6AK5
0 Z '"
6095
6AQ5W, 6005
6979
4X250B
6096
6AK5W, 5654
7000
6J7, 1 223, 1 620
flO
6097 6098
6AL5W, 5726 6AR6WA
7007 7025
6 1 66A 1 2AX7, 7025A
'.'"""
6099
6J6WA, 6101
7025A
12AX7, 7025
n
6 1 00
6C4WA, 6 1 35*
7027
7027A
6101
6J6WA, 6099
7034
4X1 50A
.r'"
6 1 06
5Y3WGT, 5Y3WGTA,
7035
4X1 50D, 7609
."
5Y3WGTB, 6853
7036
6BE6, 1 2 1 7, 5915, 5 9 1 5A
C
61 13
6SL7W, 6SL7WGT
7054
8077
:10 ."
6 1 34 6 1 35 6 1 36
6AC7W, 6AC7WA 6C4WA*, 6 1 00* 6AU6WA, 6AU6WB
7 1 84 7 1 89 7247
6V6 7 1 89A 1 2DW7
0 ''""
6 1 46B
8298A
7408
6V6GT
6 1 55 6161 6 1 66A 6 1 85 6 1 86 6187
4- 1 25A, 4D21 5588 7007 2C5 1 W, 1 2 1 9, 5670, WA 6AG5WA 6AS6W, 5725*
7494
7543
758 1 7645
1 2AX7WA, 572 1 , 6057,
VI
7729 6AU6, 6AU6WA, 6AU6WB,
6 1 36
\() W ... CI D
758 1 A 6939
0 ... ...
6 1 88
6SU7WGT
7700
6C6, 1 603
6 1 89
1 2AU7WA
7729
1 2AX7WA, 572 1 , 6057,
�
6 1 97
20 1 4
7494
6201
1 2AT7WA, 1 2AT7WB
7730
1 2AU7WA, 6 1 89
62 1 1
20 1 3
7752
6AS6
6252
99 1 0
7755
6AJ5
6485
6AH6WA
7756
6AR6
6582
TE35
7867
6EX6*
6626
OA2WA, 6073
801 6
l B3GT
6627
OB2WA, 6074
801 8
807
6660
6BA6, 6BA6W, 5749
8077
7054
* Parallel�filament circuits.
77
Section 6 FOREI GN SU BSTITUTES FOR
AMERICAN TYPES This section I ists foreign substitutes for American tubes. Refer to
this section only after checking for a n American substitute in Sec tions 1 , 3 , 4, and 5.
American tubes are shown in the left-hand co l um n ; foreign equivalents are in the right-hand colum n . Only those American types which can be replaced with foreign brands have been in cluded. For a l ist of foreign types with American eq u ivalents, refer to Section 7.
Substitutes marked with an asterisk (*) sho u ld be used only
when the fi lament of the original tube is wired i n a parallel c ircu it. Those tubes marked with a section symbol (�) may not work in all circuits.
19
To Replace Use
To Replace Use
OA2
l SOC2, l SOC4, M8223,
l X2
DY80, R 1 9
STVI OS/30
l X2A
DY80, R 1 9
OA3
KD2 1
2B3S
6D l , EASO, T6D
OA4G
PLl 267, Z300T
2D2 1
20A3, E91 N, EN9 1 , M8204,
OB2
1 08C l , M8224,
Pl21
STV1 08/30
2ERS
XC9S, XC97
OC3
KD24
2FY5
XC9S, XC97
OD3
1 50C3, KD25
2HAS
XC900
OE3
85A l
2J2
R20, U26, U49
OG3
8SA2
3A4
Dl93
l A3
l D 1 3, DA90
3AS
DCC90
l ASG
Dl31
3AJ8
XCH8 1
l A7GT
DK32, XU
3Al5
XAA91
l AB6
l C3, l H35, DK96, X25
3AU6
XF94
�
l AC6 l AD4
l C2, DK92, X 1 8, X20 DF62
3B4 3B5GT
Dl98, HD30 Dl33, N 1 S, N 1 6
l AF4
l F l , DF96, W25
CIO
�
1&1
l AFS lAH5
l FD 1 , DAF96, ZD25 1 FD1 , DAF96, Z025
an
c.!.
l AJ4 l AM4
1 Fl , OF96, W25 1 Fl , DF96, W25
�
l ANS
DF97
0
l AQ5
l H33
3BH2 3BX6 3BY7 3BZ6 3C4 3CSGT 3D6
GY501 XF80, XF8S XF80, XF85 3M-V7 l Pl , Dl96, N2S Dl33, N 1 5, N 1 6 Dl29
l AR5
1 FD1 , OAF96, ZD25
3DK6
3M-R24
Z CJ
l ASS l B3GT
DAF92* DY30, U41
1&1
l BG2
DYSI
ac:
l CSGT
Dl35, Dl36, N 1 4
0
l DNS
DAF92
... I
1 E3
DC80
Z
l F5G
Kl3S*
�
U
l G3GT l HSGT
DY30, U41 DAC32, HD1 4
ac:
1&1
l J3
DY30, U41
l K3
DY30, U4 1
�
1 14
1 F2, DF92
1 M3
DM70, DM71 , Y25
�
l N3
DM7 1 , DM70, Y25
l N5GT
DF33, Z14
3E5 3EH7 3EJ7 3ER5 3FX7 3FY5 3HA5 3Q4 3QSGT 3S4 3V4 4BC8 4Bl8 4BS8
4CM4
l Pl , Dl96, N25 XF1 83, XF1 84 XF1 83, XF184 YC9S 3D-H H 1 3 YC97 lC900 Dl95, N 1 8 Dl33, N 1 S, N 1 6 l P 1 0, Dl92, N 1 7 l P l l , Dl94, N 1 9 4R-HH2 5R-H P 1 , XCF80 4R-HH2
PC86
l Q5GT
Dl35, Dl36, N 1 4
4EH7
lF183, YF183
l R5
l C l , DK91 , X 1 7, l H33*
4EJ7
lF184, YF1 84
1 R5SF
l H33
4ES8
4R-HH8, XCC1 89
l S2
1 RK23, DY86, OY87
4GJ7
XCF801
l S2A
DY87
4GKS
PC95
l S4
Dl91
4HA5
PC900
I SS
l FD9, DAF9 1 , Z D 1 7
4KN8
4R-HH8
l T2
R 1 6, U37
5AR4
52KU, 53KU, S4KU, GZ30,
l T4
l F3, OF91 , W 1 7
GZ32, GZ33, GZ34,
l T4SF
1 F l , O F96, W25
GZ37, R52, US4, U77
l TSGT
Dl31
5AW4
U54
l U4
DF904
SAX4GT
U54
I US
DAF92
SBK7A
4R-HH2
IV
AD
SCG4
OSW3 1 07
l V6
DCF60
5EA8
XCF80
80
* Parallel-filament circuits.
� May not work in all circuits.
To Replace Use
To Replace Use
5GJ7
LCFB01
6AQ4
6L34, EC9 1 , M8099
5HG8
LCF86
6AQ5
6L3 1 , BPM04, El90, M8245,
5J6
5M-HH3
N727
5T4
Gl3 1 , U52
6AQ8
6L1 2, B71 9, ECC85
5U4G
5l1 0, Gl32, U52
6AS6
6F33, M8 1 96
5U8
XCFBO
6AS7G
A1 834, ECC230
5U9
LCF201
6AT6
6BC32, OH77, EBC90,
5V4G
52KU, 53KU, 54KU,
EBC91
Gl30, Gl32, Gl33,
6AU4GT
6G-K 1 7
Gl34, OSW3 1 07, R52,
6AU6
EF94
U54
6AV4
6FX4*, El91
5V9
LCH200
6AV6
6BC32, OH77, EBC90,
5W4
U50, U51
EBC91
5X9
LCF200
6AW6
EF1 90
5Y3GT 514
U50, U52 52KU, 53KU, 54KU, Gl30,
6B8 6BA6
EBF32* 6F3 1 , EF93, M8 1 0 1 ,
�
Gl32, Gl33, Gl34,
PM04, W727
5l4G
OSW3 1 07, R52, U54, U77
52KU, Gl30, R52, U77
6BC5 6BD7 6BE6
EF96 EBC80, EBC81 , 6L01 3* 6H3 1, EK90, HM04, X77,
'" ..,
6A6
B63
X727
n
6A8
PH4, X63
6BE7
EQ80
6AB4
EC92
6BH5
EF81
Z
6AB7
6F 1 0, OSW21 90, OSW2600 6BH6
E90F
I "'1'1
6AB8
63TP, ECL80, LN 1 52
6BJ5
N78
0
6AC7
6F1 0, OSW2 1 90, OSW2600 6BJ6
E99F
.'.",
6A08
6FO 1 2, EBF80, EBF8 1 ,
6BK6
6BC32, OH77, EBC90,
t5
6AF3
EBF89, W0709, lO1 52 EY88*
6BK8
EBC91 EF83
Z
6AF4
EC94
6BL8
6C1 6, ECF80, E80CF*
6AF7G
64ME*, EM34*
6BM5
6L3 1 , 6P9, El90, N727
'"
6AG5
EF96
6BM8
6PL1 2, ECL82
a ...
6AG7 6AH6
6L1 0, OSW21 92, OSW2601 6F36
6BN5 6BQ5
EL85, N 1 55 6 P 1 5, El84, E84L,
... I 0-
6AJ4
ECB4
N709
all
6AJ5 6AJ7
6F35
6BQ6GT
6F1 0, OSW2 1 90, OSW2600 6BQ7A
6G-B6 ECC1 BO
-< ...
6AJB 6AK5
6C1 2, 2004, ECH81 , X719 6F32, OP61 , E95F, EF95�,
6BR3 6BR5
EY88* 65ME, EMBO, EMB1
�
EF905, M81 oo�, PM05� 6BR7
805
6AK7
6L 1 0, OSW2 1 92, OSW2601 6BS7
807
6AK8
6L0 1 2, OH71 9, EABCBO
6BSB
6R-HH2
6AL3
EYB8
6BT4
66KU, El40, U1 50, U71 8*,
6AL5
6B32, 602, 02M9, 077,
UU9*, V61
0 1 52, 071 7, 006,
6BT6
6BC32, O H77, EBC90,
EAA9 1 , EB9 1 , EAA901 ,
EBC91
EAA901 S
6BW7
6F23, 806, EF80
6AM5
6P1 7, 709, 1 6A, 007,
68X4
El9 1 *
DOR7, El9 1 , MB082*
68X6
B06, 64SPT, EFBO, Z 1 52,
6AM6
6F1 2, B03, EF9 1 , HP6,
l7 1 9
MB083, PM07, QA2403, 6BX8
6R-HH2, ECC 1 BO
Ql77, R 1 44, S6F1 2, SP6, 6BY6
6H31 , EH90, EK90
Z77
6BY7
6F1 9, 6F26, EF85,
6AN7
ECHBO
W71 9
� Parallel-filament circuits.
� May not work in a l l circuit�.
81
To R.eplace Use
To R.eplace Use
6C4
EC90, l77, M8080,
6EB5
6B32, 602, 02M9, 077,
QA240 1 , Ql77
0 1 52, 0 7 1 7, 006, EAA91 ,
6C5
l63, OSW3 1 1 2
EB9 1 , EAA901 , EAA901 S
6CA4 6CA7
EZ8 1 , U709, U U 1 2 701 1 , 1 2 E 1 3, El34, KT77,
6EC4 6ECl
EY500 6F18, W739
6CB6
KT88 EF190
6EH7 6EJ7
6F25, 6F29, EF1 83, EF8 1 1 6F24, 6F30, EF1 84, EF8 1 4
6C07
64ME, EM34
6El7
6F23, EF8 1 2, Z749
6CE5
EF96
6ER5
EC95, EC97*
6CF6
EF1 90
6ES6
EF97, EF98
6CH6
70 1 0, EF82, El82 1 ,
6ES8
ECC88, ECC 1 89
El822
6ET6
EF97, EF98
6CJ5
6C 1 5, 6F1 6, 7F1 6, 62VP,
6F5GT
H63
EF4 1 , HF6 1 , W 1 50
6F6G
KT63
�
6CJ6 6CK5
El8 1 , El820 67PT, BF6 1 , El4 1 , N 1 50
6FC7 6FD6
ECC89 EF97, EF98
U -.".0I
1
6CK6 6Cl6 6CM4 6CM5 6CN6
El83, El820, El803� 6143 EC86, E86C*, EC806S* 6G�B7, El36, El360 5P29, El38
6FG6 6FW8 6FY5 6GA8 6GB5
EM84, EM840 6R�HH8, ECC88*, ECC 1 89* EC95*, EC97
6/30l2, B729, ECC804 El500
U
6CQ6
6F2 1 , 906, EF92, M81 6 1 ,
6GJ7
ECF801
-0
QA2400, QW77, V1 77, 6GM8
ECC86
V884, VP6, W77
6GV7
6C1 8, ECF805
6CS6
Z
6CT7
"
6CU6
6H3 1 , EH90, EK90 061 �, EAF42, W01 50 6G�B9
6GV8 6GW8 6GX8
ECl85 ECl86 EAM86
1&1
CII:
6CU7
.0..
I
62TH, ECH42, ECH43, ECH 1 1 3, 6C9*, 6C1 0*, X 1 50*
6H5G 6H6 6HA5
6M1 063, EB34*, OSW3 1 09 EC900
Z
6CV7
6l03, 6200T, OH 1 50,
6HC8
ECl82*
OH718, EBC41
6HG5
6l3 1 , 6P9, El90, N727
6CW5
El86
6HG8
ECF86
CII:
6CW7
611 6, ECC84
1&1
604 608 60A5
EN93 X73*, X73M* 65ME, EM80, EM81
6HL8 6HM5 6HQ5 6HQ6
6C1 6, ECF80
EC900 EC900 EF1 90
�
60A6 60C6
EF89 EF1 90
6HU6 6HU8
EM87 Ell80
60C8 60G7 60J8 6014 60L5
6F0 1 2, EBF85, EBF89
6J4
EF89F
6J5
ECC88, ECC1 89, E88CC*
6J6
EC88
El95
6J7
6M�H 1 , M8232, TM 1 2 L63, L63B, OSW3 1 1 2 6CC3 1 , 6M�HH3, ECC91 ,
M8081 , T2M05 A863, EF37*, Z63
60Q6A 60R6 60R8
6G�B9 El8 1 , El820 EBF83
6J7GT 6JW8
A863, KTW63, KTZ63, KTZ63M, Z63, EF37*
ECF802
6058
ECH83
6JX8
ECH84
60T8
6AT7N
6K7
PF9, W61 , W63, EF39*,
60X8
ECl84
OM6*, W 1 47*
60Y5
El82
6KH8
ECLL8001
6E5
6S5G, 05W3 1 1 0
6 K N8
6R�HH8, ECC88*, ECC1 89*
6E8G
X61 M, X 1 47, ECH35*,
616
El37
TH62*
6L6GC
KT66
82
* Parallel�filament circuits.
May not work in .11 circuits.
To Replace Use
To Replace Use
617
X64
7FC7
PCC84, PCC89
6lN8
lCF80
7GV7
30C1 8, PCFB05
6lXB
lCFB02
7H7
EF22*, WI 43*, W l 4B
6M5
ElBO
7S7
XB1, X14B
6M6G
El33*, KT6 1 *, N I 47*,
7Y4
UB2*, U 1 49
PP6BG�
8AB
30C I , lZ31 9, lZ329, PCFBO
6N3
EYBO, EYB2
PCFB2
6NB
EBFBO, EBFB 1 , W0709,
BBB
BR-H P 1 , XClB2
Z O l 52
BBQ5
XlB4
6Q4
ECBO
BCW5
XlB6
6Q7
OH63
BGJ7
PCFBOI , PCFB06
6R3
63VP*, EYB I , EYB3*,
BHGB
PCFB6
EYBB*
BU9
PCF201
6R4
ECB I
BX9
PCF200
6RB 6S2
6LD 1 2, OH7 1 9, EABCBO EYB6, EYB7
9AB 9AKB
30C l , lZ31 9, lZ329, PCFBO PABCBO
�
6S2A 6S7 6SA7
EYB7 OF I , OM5* OSW3 1 04
9AQB 9BM5
PCCB5 9P9
9EAB
30C I , lZ3 1 9, LZ329,
m
6SK7
OSW31 1 1
PCFBO, PCFB2
:II'
6Sl7
ECC35*
9EN7
30C1 5, LZ339, PCFBOO
n
6SN7GT
1 302, B65, ECC32*,
9GBB
30Fll , PCEBOO
QA240B, QB65
9GVB
XClB5
Z
I
6SQ7
OSW3 1 05
9JWB
PCFB02
"'1'1
6TB
6l0 1 2, OH7 1 9, EABCBO
9UB
30C I , lZ3 1 9, lZ329,
6U3
EYBO
PCFBO, PCFB2
0:mII'
6UB
ECFBO, ECFB2
9V9
PCH200
C)
6U9
ECF201
I OCW5
llB6
Z
6V3
EYB I F
1 00E7
9R-All
6V4
EZBO
1 00XB
lClB4
6V6GT 6V9
OSW3 1 06* ECH200
I OGVB l l BMB
lCLB5 lClB2
0-
r.-..
6W7G
B04*
l l R3
lYB l
I
...
6X2
EY5 1 , R 1 2, SU6 1 , U43,
l l Y9
lFl200
U45, U 1 5 1
1 2AB
OH4
6X4
6Z3 1 , E90Z, EZ90, EZ900,
1 2AC5
I OF9, 1 2 1 VP, HF1 2 1 ,
U707, V2M70, QA2407*,
UF4 1 , W l 1 8, W 1 42,
<...
6X5G
U78* EZ35, U 1 47, U70*
1 2A07
W 1 45 6LJ3*
�
6X9
ECF200
1 2AF3
12R-K1 9
6Y9
EFL200
1 2AH8
2003
6Z3
AD
1 2AJ7
HCHBI
7A7
W81 , W 1 48, EF22*, W 1 43 * 1 2AL5
1 002, HAA91 , UB91
7AN7
30l 1 , 3011 5, B31 9, PCC84 1 2AT6
1 2BC32, H BC90, H BC91
7AU7
PCCI B6, XCCB2
1 2AT7
B 1 52, B309, B739, ECC8 1 ,
7B5
El22, KT8 1 , NU8
ECC801 , ECC801 S,
7B6
OH8 1 , Ol82
E81 CC, M8 1 62, QA2406,
7B7
W 1 49
QB309
7C5
El22, KT81 , N 1 48
1 2AU6
1 2F3 1 , HF93, HF94
7C6
OH 1 49
1 2AU7
B329, B749, E82CC, ECCB2,
70J8
PCC88, PCC1 89
ECC1 B6, ECC802,
7E07
30F5, Z329
ECCB02S, MB1 36
7EK7
3011 5, B349, PCCB05
1 2AV6
1 2BC32, HBC90, HBC9 1
7ES8
PCC88, PCC1 89
1 2AV7
1 2R-ll3�
* Parallel�filament circuits.
� May not work in all circuits.
83
To Replace Use
To Replace Use
1 2AX7
6l1 3, B339, B759, E83CC, 1 7Z 3
A61 , PY81 , PY83, PY800,
ECC83, ECC803, M81 37
PY801 , U1 53, U 1 93,
1 2 BA6
1 2F31 , HF93, HF94
U25 1 , U349
1 2BE6
1 2H3 1 , HK90
1 8 FW6
1 9M-R9
1 2BK6
1 2BC32, HBC90, HBC91
1 8FX6
X 1 07�
1 2BQ6GT 1 2G-B6
1 8GD6
1 9M-R9
1 2BR3
1 2R-K 1 9
1 8GV8
PCl85
1 2BT6
1 2 BC32, HBC90, HBC91
1 9AQ5
Hl90
1 2BX6
1 0F1 8*, Wl 1 9*
1 9C8
HABC80
1 2BY7
EL1 80
1 9C54
U191, U339
1 2C8
VP 1 2D
1 9D8
1 0C 1 4, 1 9AJ8, UCH8 1 ,
1 2C56
12H31, HK90
Xl 19
1 2DF7
611 3, B339, B759,
1 9KF6
N22ll
ECC83, ECC803
1 9T8
HABC80
�
1 2DT7
611 3, B339, B759,
ECC83, ECC803
1 9X3
1 9BD, 1 9U3, 1 9W3, PY80, U 1 52, U309
cw,
1 2FB5
30P 1 2
Z
1 2FG6
UM84
an an
1 2HU8
Pll80
..I .
>< <II(
1 2K7 1 2 K7GT 1 2K8
W76 OF5, W76 X71M, X76M
N
1 2Q7GT
DH74, DH76, Dl74M
...
1 257
UAF42�, WD1 42�
1 9Y3
20AQ3 2 1 A6
25BQ6GT 25E5 20GF6
1 95U, PY82, U1 54, U 1 92,
U3 1 9 lY88 2 1 3PEN, N 1 52, N339,
N359, Pl8 1 , Pl820 25G-B6 30P4, 30P 1 9, N308, Pl36 30P4, 30P 1 9, N389,
1 25N7GT 1 3D2, B36
Pl302
Z CJ
1 25Q7 1 25X7GT
OBC3 B36
2 1 KQ6 25A6
ll521 KT33
ill
1 2X4
HZ90
2516
KT32
g::
1 2Z3
HZ90
25W6GT
KT32
0
1 3CM5
1 2G-B7, Xl36
u.
0
1 3EC7
1 0F 1 8, W 1 1 O, W l 1 9
25Y4 25Z4GT
PY31, U31 U3 1
Z
<II(
U g::
ill
1 3GB5 1 3GC8 1 4G6 1 4GW8
1 2B-B1 4, Xl500 30Pl1 , 30Pl 1 0, lN3 1 9 1 0lD 1 3, D H 1 1 9, UBC 8 1 PCl86
27GB5 27KG6 28EC4 28GB5
Pl500 ll505 lY500 Pl500
1 4K7
1 4 1 TH, UCH42, UCH43,
30A5
Hl94
<II(
X 1 42
30AE3
PY88
1 417
1 0lD3, 1 4 1 DDT, DH1 1 8,
3 1 A3
3 1 1 SU, U 1 1 8, U 1 42, U 1 45,
�
DH 1 42, UBC4 1
U404, UY4 1 , UY42,
1 4Z3
HZ90
V31 1 , V31 2
1 5A6
N 1 53, N309, Pl83
35C5
Hl94
1 5CW5
30P 1 8, N379, Pl84
35W4
HY90
1 5DQ8
PCl84
35Z4GT
U74, U76
1 6A5
30P 1 6, 30P 1 8, 163PEN,
38A3
U1 1 9, U381 , UY85
N1 54, N329, N379, Pl82. 40KG6
Pl509
Pl84
42EC4
PY500
1 6A8
30P11 2, N369, PCl82
45A5
1 0P 1 4, 451 PT, BF45 1 ,
1 6AQ3
XY88
N 1 42, Ul4 1 , Ul46
1 6GK8
30Pl1 3, 30P l 1 4, PCl88,
45B5
10P18, N l 1 9, Ul84
PCl800
50BM8
1 0P11 2, 48A8, lN1 1 9,
1 6Y9
PFl200
UCl82
1 7C8
1 7N8, 1 7 1 DDP, UBF80
50C5
Hl92
1 7EW8
HCC85
50l6GT
KT71
1 7N8
U BF80
55N3
UY82
84
* Par.llel-fil.ment circuits.
May not work in .11 circuits.
To Replace Use
To Replace Use
807
954 955
956 957 958A 959 1 267 2050 5591
5608
5624 5634 5636 5641 5642 5643 5647 565 1
5654
5660 5672
5676 5678 5696 571 8 5725 5726
5727 573 1 5749 5750 575 1
5757 5763 5783 5802 5814 5823 5838 5840 5847
4Y25, 551 , P 1 7A, QE06/50, QV05-25
E1 F, UN954, ZA2* 1 650, 467 1 , E 1 C, HA2,
UN955 E2F 01 C 02C 03F Z300T EN32, ME1 501 OP6 1 , E95F, EF95, EF905,
M81 80 OP6 1 , E95F, EF95, EF905,
M81 00, M81 80 E82M EN70, M E 1 500 EF730 EY70 OY70 EN70 EA71 85A2, M8098, OG3,
STV85/1 0 OP6 1 , E95F, EF95, EF905,
M8 1 00, M81 80, PM05 VP120 OL69, OL75, OL620, OL652,
XFY 1 4 XFR3 OF60, OF654, XFR2 EN92 EClO M8 1 96
602, 02M9, 077, 01 52, 07 1 7, 006, 006G, E91 AA, EAA91 , EAA901 S, EB9 1 , M8079, M821 2, QA2404, Q077
M8204, E91 N, EN9 1 , PL21 E1 F, ZA2 EF93, M81 0 1 , PM04, W727 EK90, HM04, X77, X727 B759, ECC83, 6339,
M8 1 37 E91 N, EN9 1 , M8204, PL2 1 QE03/ 1 0, QV03 - 1 2 85A3, M8 1 90 ME1 401 6749, M8 1 36 Z900T EZ35, U70, U 1 47 EF732 6R-R8, 6R-RSC, E 1 82F
5852 5861 588 1 5886 5889 5894
5899 5900 5901 5902 591 0 591 1 591 3 59 1 5 5920 5931 5932 5993
6004 6005 6007 6008 6024
6030 6042 6050 6057
6058
6059 6060 6062 6063
6064
6065
6067 6073
6074
EZ35, U70, U 1 47
EC55
EL37, KT66
OF703
ME 1 403
QQC04/ 1 5, QQE06/40,
QQV06-40
E F7 3 1
EF71
EF72, EF732, M8 1 2 1
EL71
OF904
OF67
OL67
E91 H , EH900S E90C, E90CC
�
U52, GZ31
KT66
6Z3 1 , EZ90, M8 1 38, QA2407, QU78, U78,
m:II'
U707, V2M70
n
U50
M8245
Z
OL67
I "'"
OF67 6F1 2, 803, EF9 1 , HP6,
0:mII'
M8083, PM07, QA2403,
QZ77, SP6, Z77 ECC91 , M808 1 , T2M05
C) Z
1 301
XFR3
CD
6339, 6759, ECC83,
0
ECC803, M81 37 602, 077, 0 1 52, 071 7,
02M9, 006, 006G,
0.I -..
0 ...
EAA9 1 , EB9 1 , QA2404,
0l:Io
Q077
805
�
ECC801
M8096
6Z3 1 , EZ90, EZ90Z, EZ900,
M81 38, QA2407, QU78,
U78, U707, V2M70
6F 1 2, 803, EF9 1 , HP6,
M8083, PM07, QA2403,
QZ77, SP6, Z77
6F2 1 , 906, EF92, M8 1 6 1 ,
QA2400, QW77, VP6,
W77
6749, M8 1 36
1 50C2, 1 50C4, H05 1 ,
M8223, STV1 50/30
1 80C 1 , H052, M8224,
STV 1 0S/30
.. Parallel-filament circuits.
May not work in all circuits.
85
To Replace Use
To Replace Use
6080
6084 6085 6086 6087 6096
6097 6099 6 1 00
6101
6 1 05
�
6 1 06 61 25
N N
6 1 32
"
"
J
6 1 35
0CO
6 1 36
'0
6146
6 1 57
Z
6 1 58
6 1 59
i&.I
6 1 86
"
6 1 89
0
Yo
I
6 1 95
Z
620 1
< U
6202
"
i&.I
6203
<
�
6205
62 1 8
6227
6252
6267
628 1 635 1 6354 6360 6370 6373 6374 6375 6391 6443 6463
7Dl l , 1 2E1 3, A1 834, ECC230, EL34, KT88
E80F E80CC 1 8042, TS53 U50 DP6 1 , E95F, EF95, EF905,
M81 00, M8 1 80, PM05 D7 1 7, M821 2 ECC91 , M808 1 , T2M05 EC90, l77, M8080,
QA2401 , QL77 ECC9 1 , M808 1 , T2M05
U50 ECC91 , M808 1 , T2M05 EC90, L77, M8080,
QA2401 , QL77 7D 1 0, EF82, EL82 1 ,
El822, M8 1 35 EC90, l77, M8080,
QA240 1 , Ql77 EF94 QE05/40, QV06-20
R17 1303 QE05/40H
EF96 8749, E82CC, ECC802,
M8 1 36 Dl700 E81 CC, ECC80 1 S, M8 1 62 6Z3 1 , EZ90, M81 38,
QA2407, Q U78, U78, U707, V2M70 6Z3 1 , EZ90, M81 38, QA2407, QU78, U78, U707, V2M70
EF734 E80T E80L QQE03/20, QQV03-20 8D8, 6F22, EF86, EF87, EF806S, M8 1 95, Z729 CK51 2AX Z31 9 1 5082, M8 1 63 QQ E03/ 1 2, QQV03-1 0 Ell Dl70 EY84 DClO EF74 EY84, M8091 , R 1 8 CCB6E, ECCB6, ECCB 1 3
6487 6488 6489 651 6 6535 6550 6574 661 1 6626
6627
6660 6679 6680 668 1
6686 6687 6688 6689 6778 6779 6922 6923 6939 6977 7001 7025
7027 7027A 7062 71 18 71 1 9 7247 7292 7308 73 1 6 7320 7378 7408 7534 7543 758 1 7643 7693 7694 7709 77 1 0 771 1 771 3 771 4 7722
EF70, M8 1 25 EF73, M81 22 EA76, M8 1 23 M8082 ECC91 , M808 1 , T2M05 7Dl l , 1 2E13, KT88 EN32, ME1 501 DF6 1 1 50C2, 1 50C4, HD5 1 ,
M8223, STV 1 50/30 1 08C 1, HD52, M8224,
STV1 08/30 EF93, M8 1 0 1 , PM04, W727 8739 8749
8339, 8759, E83CC, ECC83, M8 1 37
E81 1 E9 1 H E 1 80F E83F EClO Z803U E88CC EA52 QQE02/5, QQV02-6 DM1 60 M81 67 8339, 8759, ECC83,
M8 1 37 KT66 KT88 E1 80CC E 1 8 1 CC E1 82CC 8759 JN2-2SW E 1 88CC
ECC 1 86 E84l QE08/200, QV08- 1 00 OSW3 1 06 E 1 80L EF94 KT66, KT77
E80CF E90F E99F Z70W ZlOU Zll U Z804U Z805U E280F
86
* Paral lel -fi lament circuits.
May not work in a l l circuits.
To R.eplace Use
7737 7788 8 1 01 8223 8228 8233
E 1 86F E81 0F EC1 57 E288CC ZZl OOO E55L
To R.eplace Use
8254 8255 8278 8453 9905 991 0
EC1 000 E88C, EC88 EL503, Fl EL Z550M QQC04/ 1 5 QQE03/20, QQV03-20
�
�
� Parallel-folament circuit�.
� May not work in all circuit�.
87
Section 7 AMERICAN SUBSTITUTES FOR
FOREIGN TY PES
This section lists American su bstitutes for foreig n tu bes. Foreig n tubes are shown in the left-hand colu mn; American equivalents are in the right-hand column. Only those foreign types which can be replaced w ith American brands have been listed. For a list of foreign eq uivalents for American types, refer to Section .6 .
I n most cases, there i s only one American replacement shown as a d irect eq u ivalent to the foreign type. Other eq uivalents for
the American replacement are listed in Sections 1 , 3, 4, an d 5.
For example, the American replacement for the 6 F 1 0 is the 6AC7. If a 6AC7 is not available, Section 1 shows that a 6AJ7 can be used as a substitute. Therefore, the 6AJ 7 can be used as a sub stitute for the 6F1 0.
Substitutes� marked with an asterisk (*) should be used only
when the flIament of the original tube is wired in a parallel circuit. Those tubes marked with a section symbol (�) may not work in all circuits.
89
To Replace Use
lCl
I RS
l C2
l AC6
l C3
l AB6
1013
l A3
l Fl
1 AJ 4
1 F2
1 L4
1 F3
1 T4
l F0 1
1 AHS
1 F09
I SS
1 G50
2050A
1 H2
l S2
1 H33
1 AQ5,
1 RSSF,
1 RS*
�
l H3S
l AB6
1M1
1 N3
,."
l Pl
3C4
0
N ..I . U
1 P10 1 P1 1 1 R K23 l SSSF 1 USSF
3S4 3V4 l S2 lARS l ASS
2B/250A 807
3M-R24 30K6
Z
3M-V7
3Bl6
3S4SF
3W4
4G280K 2021
4R-HH2 4BS8
...
I
4R-HH8 4Y2S 5A/ 1 60H
4KN8 807 6AM6
Z C)
5B/2S0A 807 5M-HH3 5J6
...
5P29
6CN6
0
5R-HP 1
4BL8
u.
5S 1
e07
5110
5U4G
�
6/30l2 6GA8
6AT7N
60T8
6B32
6AL5
6BC32
6AV6
6C9
6CU7*
6C1 0
6CU7*
6C 1 2
6AJ8
6C1 5
6CJ5
6C1 6
6BL8
6C 1 8
6GV7
6C3 1
6K8
6CC1 0
5692
6CC31
6J6
6CC42
5670
6CC43
6A08
6CF8
6267
6CH40
6AJ8
To Replace Use
601 602 60-HH 1 3 6Fl 0 6F 1 1 6F1 2 6F1 S 6F1 6 6F 1 8 6F 1 9 6F2 1
6F22 6F23 6F24 6F25 6F26 6F29 6F30 6F31 6F32 6F33 6F3S 6F36 6F0 1 2 6FX4 6G-B3A 6G-B6 6G-B9 6G-K 1 7 6H3 1 6L1 0 6L1 2 6L1 3 6L1 6 6L3 1 6L34 6L43 6103 6L0 1 2 6L0 1 3 6LP1 2 6M1 6M2 6M-H 1 6M-HH3 6P9 6P1 5 6P1 7 6P25 6Pl1 2 608 6R-HH2 6R-HH8 6R-K1 9
2B3S 6ALS 6FX7 6ACl 6AM6 6AM6 6CJ5 6CJ5 6EC7 6BY7 6CQ6 6267 6EL7 6EJ7 6EH7 6BY7 6EH7 6EJ7 6BA6 6AK5 6AS6 6AJS 6AH6 60C8 6AV4* 6BQ6GT 60Q6A 6GW6 6AU4GT 6BE6 6AG7 6AQ8 1 2AX7 6CW7 6AQ5 6AQ4 6CL6 6CV7 6AK8 6B07 63M8 6U5G 6C07 6J4 6J6 6BM5 6BQS 6AM5 6AG6 6BM8 6A8 6BS8 6KN8 6AV3
To Replace Use
6R-RBC 6SSG 6T1 6V3P 6V4 614 613 1 709 70 1 0 70 1 1 7F1 6 803 804 805 806 807 808 8R-HP1 906 9P9 9R-AL1 9R-HH2 1 0C 1 4
1 0F9 1 0F 1 8 1 0LD3 1 0L01 3 1 0P 1 8 1 0PL 1 2 1 2B-B 1 4 1 2 BC32 1 2E13 1 2F31 1 2G-B3 1 2G-B6 1 2G-B7 1 2G-K 1 7 1 2H31 1 2R-K 1 9 1 2R-Ll3 1 2R-LLS 1 302 1 303 1 6A 1 7N8
1 8AK5 1 9AJ8 1 9BO 1 9M-R9 1 9M-R 1 0 1 9SU 1 9U3 1 9W3 20A3
SB47 6ES 6AF4 6R3* 6CA4 6BX4 6X4 6AMS 6CH6 6550 6CJS 6AM6 6W7G* 6BR7 6BW7 6BS7 6267 8B8 6CQ6 98M5 1 00E7 9GH8A 1 908 1 2AC5 1 3EC7 1 4 L7 1 4G6 4SB5 SOBM8 1 3G85 1 2AV6 6550 1 2BA6 1 2GW6 1 2BQ6GT 1 3CM5 1 204A 1 2BE6 1 2BR3 1 2AV7 1 2FQ7 6SN7GT 6 1 58 6AM5 1 7C8 6028 1 908 1 9X3 1 8G06 1 8G06
1 9Y3 1 9X3 1 9X3 2021
90
* Parallel-filament circuits.
� May not work in all circuits.
To Replace Use
To Replace Use
To Replace Use
20D3
1 2AHB
A252 1
6CR4
DD6
6AL5
20D4
6AJB
A2900
1 2AT7
DD7
6AM5
25G-86 258Q6GT
AA9 1 E
5726
DD77
5726
25R-K19 258R3
A8C9 1
1 2A6
DDR7
6AM5
30C 1
9A8
AD
6Z3
DF26
I S5
30C 1 5
9EN7
AG52 1 1 OA2
DF33
1 N5GT
30C 1 8
7GV7
ARS25A 807
DF60
5678
30F5
7ED7
ASG5 1 2 2D2 1
DF62
1 AD4
30FLI
9G88
ATS225A 807
DF67
59 1 1 , 6008
30L1
7AN7
836
1 2SN7GT
DF91
1 T4
30L1 5
7EK7
863
6A6
DF92
1 L4
30P4
25GF6
865
6SN7GT
DF96
1 AJ4
30P1 2
1 2F85
8 1 39
7AN7
DF97
1 AN5
30P 1 6
1 6A5
8 1 52
1 2AT7
DF652
1AD4
30P1 8 30P 1 9
1 5CW5 25GF6
8309 83 1 9
1 2AT7 7AN7
DF668 DF904
1 AD4 1 U4
�
30PL 1 30PL 1 0 30PL1 2 30PL1 3 30PL1 4
1 3GC8 1 3GC8 1 6A8 1 6GK8 1 6GK8
8329 8339 8349 87 1 9 8729
1 2AU7 1 2AX7 7EK7 6AQ8 6GA8
DH63 DH74 DH76 DH77 DH8 1
6Q7 1 2Q7GT 1 2Q7GT 6AT6 7B6
"'PI
0 m
Cl
40SUA 52KU
I D5 5Z4G
8739 8749
1 2AT7 1 2AU7
DHl 1 8 DHl 19
1 4L7 1 4G6
Z
>
54KU 62DDT 62TH 62VP 63TP
5AQ4 6CV7 6CU7 6CJ5 6A88
8759
8A2 8F61 8F45 1 8PM04
1 2AX7 2050 6CK5 45A5 6AQ5
DH1 42 DH 1 49 DH1 50 DH7 1 8 DH7 1 9
1 4L7 7C6 6CV7 6CV7 6AK8
m
0 > Z
64ME
6CD7
8VA264 6AG6G
DH8 1 7
6CV7
64SPT
68X6
8VA265 6AG6G
DK32
1 A7GT
65ME 66KU 67PT
66R5 68T4 6CK5
C61 0 CC8 1 E CC86E
7J7 1 2AT7WA 6GM8
DK91 DK92 DK96
1 R5 1 AC6 1 A66
0..., W C
85Al 85A2 85A3
OE3 OG3 5783
D1C D2C D2M9
957 958A 6AL5
DK97 DL29 DL31
1 A86 3D6 1 A5G
I
C 0..-"..
1 08C1
082
D3F
959
DL33
3Q5GT
1 2 1 VP 1 4 1 DDT
1 2AC5 1 4L7
061
6CT7�
063
6H6
DL35 DL36
1 C5GT 1 Q5GT
�
1 4 1 TH
1 4K7
077
6AL5
DL37
6L6GC
1 5062
6354
D 1 52
6AL5
DL67
59 1 3, 6007
1 50C1
OA2
D71 7
6AL5
DL82
766
1 50C2
OA2
DA90
1 A3
DL91
l S4
1 50C3
OD3
DAC 2 1
I S5
DL92
3S4
1 50C4
OA2
DAC32
1 H5GT
DL93
3A4
1 63PEN 1 6A5
DAF90
1 A3
DL94
3V4
1 7 1 DDP 1 7C8
DAF9 1
1 S5
DL95
3Q4
2 1 3PEN 2 1 A6
DAF92
1 U5
DL96
3C4
3 1 1 SU
3 1 A3
DAF96
1 AH5
DL98
364
451 PT
45A5
DAF97
l AN5
DL620
5672
A6 1
1 7Z3
DClO
6375
DM70
1 M3
A677
6C6
DC80
1 E3
DM71
1 N3
A863
6J7GT
DCC90
3A5
D M 1 60 6977
A 1 834
6AS7G
DCF60
1 V6
DP61
6AK5
* Parallel�filament circuits.
� May not work in all circuits.
91
To Replace Use
To Replace Use
To Replace Use
DY30
1 B3GT
EABC80 6AK8
ECC801 6060
DY5 1
1 BG2
EAF41
6CTl�
ECC802 6 1 89
DY70
5642
EAF42
6CT7
ECC803 6057
DY80
1 X2A
EAM86 6GX8
ECC804 6GA8
DY86
l S2
EB34
6H6*
ECC808 6KX8
DY87
l S2A
EB91
6AL5
ECC81 3 6463
DY802
1 BQ2
EBC3
6BD7A
ECC863 1 2DT7
E1 F
954
EBC41
6CV7
ECC900 6HA5
E2F
956
EBC80
6BD7
ECF80
6BL8
E55L
8233
EBC8 1
6BD7
ECF82
6U8
E80CC
6085
EBC90
6AT6
ECF86
6HG8
E80CF
7643
EBC91
6AV6
ECF200 6X9
E80F
6084
EBF32
6B8*
ECF201
6U9
E80L
6227
EBF41
6CJ5
ECF202 6AJ9
E80T
621 8
EBF80
6N8
�
E8 1 CC
1 2AT7, 6201
EBF8 1
6AD8
ECF801 ECF802
6GJ7 6JW8
EB 1 L
6686
EBF83
6DR8
ECF805 6GV7
0CIIO.
EB2CC E83CC
1 2AU7 6681
EBF85 EBF89
6DC8 6DC8
ECH35 ECH42
6E8G* 6CU7
III
J
E83F E84L
6689 7320
EC22
6R4
EC55
5861
ECH80 ECH81
6AN7 6AJ8
>Q
E88C E88CC
6DL4, 8255 6922
EClO ECl 1
571 8 571 8
ECH82 ECH83
6E8 6DS8
E89F
6DG7
EC80
6Q4
ECH84
6JX8
E90C
5920
EC8 1
6R4
ECH l 1 3 6CU7
Z
E90CC
5920
EC84
6AJ4
ECH200 6V9
-c(
E90F
6BH6
U
E90Z
6X4
EC86 EC88
6CM4 6DL4, 8255
ECL80 ECL82
6ABB 6BM8
a:
E9 1 AA
5726
III
-cI(
E9 1 H E9 1 N E95F
6687 5727 6AK5
Z
E99F
6BJ6
CJ
E 1 30L
7534
III
a: 0 II.
E 1 80F E1 80CC E 1 80L
6688 7062 7534
E1 82CC 7 1 1 9
EC90 EC91 EC92 EC93 EC94
EC95 EC97 EC806S EC900
6C4 6AQ4 6AB4 6B54 6AF4
6ER5 6FY5 6CM4* 6HA5
ECL84 ECL85 ECL86
ECL821 ECLL800 ED2 ED500 EF1 3 EF22
6DX8 6GV8 6GW8
6CH6 6KH8 6AL5 6ED4 6DA6 7Ar
�
E 1 82F
5847
E 1 86F
7737
EC1 000 ECC32
8254 6SN7GT
EF36
6J7
EF37
6J7GT*
E1 88CC 7308
ECC35
6SL7*
EF39
6K7*
E280F
7722
ECClO
6021
EF4 1
6CJ5
E288CC 8223
ECC81
1 2AT7
EF70
6487
E 8 1 0F
7788
ECC82
1 2AU7
EF71
5899
E902
6X4
ECC83
1 2AX7
EF72
5840
E 1 485
3A4
ECC84
6CW7
EF73
6488
E20 1 6
6CQ6
ECC85
6AQ8
EF74
639 1
E21 57
1 2AT7
ECC86
6GM8
EF80
6BX6
E21 63
1 2AU7
ECC88
6DJ8
EF81
6BH5
E21 64
1 2AX7
ECC89
6FCl
EF82
6CH6
EA41
6CTl
ECC91
6J6
EF83
6BK8
EA50
2B35
ECC 1 80 6BQ7A
EF85
6BY7
EA76
6489
ECC 1 86 1 2AU7
EF86
6267
EAA91
6AL5
ECC1 89 6E58
EF87
6267
EAA901 5726
ECC230 6080
EFB9
6DA6
92
� Parallel�filament circuits.
� May not work in all circuits.
To Replace Use
To Replace Use
To Replace Use
EF89F
60G7
ElL80
6HU8
HCC8S
1 7EW8
EF91
6AM6
EM34
6C07
HCH81
1 2AJ7
EF92
6CQ6
EM3S
6US
H01 4
1 HSGT
EF93
6BA6
EM80
6BRS
H030
3B4
EF94
6AU6
EM81
60AS
HOSI
OA2
EF9S
6AKS
EM84
6FG6
HOS2
032
EF96
6AGS
EM8S
60G7
H093
l X2B
EF97
6ES6
EM87
6HU6
H094
6BQ6GTB
EF98
6ET6
EM840
6FG6
H096
2SBQ6GTB
EF1 83
6EH7
EN32
20S0
HF61
6CJS
EF1 84
6EJ7
EN91
2021
HF93
1 2 BA6
EF1 90
6CB6
EN93
604
HF94
1 2AU6
EF730
S636
EQ80
6BE7
HF121
1 2ACS
EF73 1
S899
EYSI
6X2
EF732
S840, S901
EY80
6U3
H K90 HL86
1 2BE6 30CWS
�
EF734
620S
EY81
6R3
HL90
1 9AQS
EF8 1 1 EF8 1 2
6EH7 6El7
EY8 1 F
6V3
EY82
6N3
HL92 HL94
SOCS 30AS
"1'1
0
EF8 1 4
6EJ7
EY83
6AL3*
HM04
6BE6
I'll
EF90S
S6S4
EY84
6374
HP6
6AM6
C5
EFL200 EH90
6Y9 6CS6
EY86 EY87
6S2 6S2A
HY90 HY1 4S
3SW4 I U4
Z
I
EK90
6BE6
EY88
6AL3
HZSO
1 4Z3
EL33
6M6G*
EYSOO
6EC4
HZ90
1 2X4
I'll
EL34
6CA7
EZ3
6V4
K021
OA3
EL36
6CMS
EL37
6L6
EL38
6CN6
EZ4 EZ1 1 EZ22
6CA4 6V4 7Y4
K024 K02S KL3S
OC3 003 1 FSG*
n
Z
EL41
6CKS
EZ3S
6XSG
KT32
2SW6GT
El71
S902
EZ40
6BT4
KT33
2SA6
I'll
El80
6MS
EL81
6CJ6
EZ80 EZ8 1
6V4 6CA4
KT61 KT63
6M6G* 6F6G
"1'1
�� -0
EL82
60YS
EL83
6CK6
EZ90 EZ91
6X4 6AV4
KT66 KTl l
6L6GC SOL6GT
"1'1
I r-
EL84
6BQS
El8S
6BNS
EZ900 FA6
6063 5677
KT77 KT88
6CA7 6SS0
n �r�-
EL86
6CWS
Fl EL
8278
KTW63 6J7GT
EL90
6AQS
EL9 1
6AMS
G7S/20 OA3
G77
6C6
KTZ63 KTZ63M
6K7GT 6J7GT
�
El9S
60LS
G l 0S/ 1 0 OC3
KY80
5J2
E L I 80
1 2BY7
G 1 S0/30 003
L63
6JS
El300
6FN5
G/SO/4K OA2
L63B
6J5
EL500
6GB5
GY501
3BH2
L77
6C4
El503
8278
GZ30
5Z4G
LC97
3FY5
EL504
6GB5
GZ3 1
SU4G
LC900
3HAS
EL505
6KG6
GZ32
SV4GA
LCC1 89 5ES8
El508
6KW6
GZ34
5AR4
LCF80
6LN8
ELS09
6KG6A
H52
SU4GB
LCF86
SHG8
El802
6L06
H63
6FSGT
LCF200
5X9
EL803
6CK6�
H2- 1 0
2X2A
LCF201
5U9
EL820
6CK6
HAA91
1 2ALS
LCF801
5GJ7
El821
6CH6
HABC80 1 9T8
LCF802 6LX8
EL822
6CH6
H BC90
1 2AT6
LCH200 SV9
ELF86
6HG8
H BC91
1 2AV6
LCL82
l 1 BM8
� Parallel-filament circuits.
May not work in all circuits.
93
To Replace Use
To Replace Use
To Replace Use
lCl84
1 00X8
N 1 44
6AM5
PCF80
9A8
lCl85
1 0GV8
N 1 47
6M6G*
PCF82
9U8
lCl200
1 00X8
N 1 48
7C5
PCF86
8HG8
lF1 83
4EH7
N 1 50
6CK5
PCF200 8X9
lF 1 84
4EJ7
N 1 52
2 1 A6
PCF201 8U9
lFl200
l l Y9
N 1 53
1 5A6
PCF800 9EN7
U86
1 0CW5
N 1 54
1 6A5
PCF801 8GJ7
ll500
1 8GB5
N 1 55
6BN5
PCF802 9JW8
U505
27KG66
N308
25E5
PCF805 7GV7
ll521
2 1 KQ6
N309
1 5A6
PCF806 8GJ7
lN l 1 9
50BM8
N329
1 6A5
PCH200 9V9
lN 1 52
6AB8
N359
2 1 A6
PCl82
1 6A8
lN31 9
1 3GC8
N369
1 6A8
PCl84
1 50Q8
�
lY81
l lR3
lY88
20AQ3
...
lY500
28EC4
0
lZ3 1 9
9A8
GO >-
A.
lZ329 lZ339
9A8 9EN7
J
GO
M8063 M8079
6AM6 5726
... U ...
M8081 M8096
6J6 5763
M81 00
5654
N378 N379 N389 N709 N727 OBC3 OF1 OF5 OH4 OM3 OM5
1 5CW5 1 5CW5 25GF6 6BQ5 6AQ5 1 25Q7 657 1 2K7GT 1 2A8 6H6* 657*
PCl85 PCl86 PCl88 PCl800 PCl80 1 P0500 PF9
PF86 PFl200 PH4 Pl2 1
1 8GV8 1 4GW8 1 6GK8 1 6GK8 1 3GC8 9E04 6K7
4HR8 1 6Y9 6A8 202 1
M8 1 2 1
5840
OM6
6K7
Pl36
25E5
Z
M8 1 36
6 1 89
05W2 1 90 6ACl
?l8 1
2 1 A6
M8 1 37
1 2AX7A
05W2 1 92 6AG7
U
M8 1 62
1 2AT7WA
OSW2600 6AC7
Pl82
1 6A5
Pl83
1 5A6
M8 1 96
5725
III
M8204
5727
1
M821 2 M8223
5726 OA2WA
Z CJ
M8224 M8232
OB2WA 6J4WA
OSW2601 OSW3 1 04 OSW3 1 05 OSW3 1 06 OSW3 1 07 OSW3 1 09
6AG7 6SA7 6SQ7 6V6GT* 5CG4, 5Z4G 6H6
Pl84 Pl300 Pl302 Pl500 Pl505 Pl508
1 5CW5 35FN5 25GF6 27GB5 40KG6 1 7KW6
III
M8245
6005
0
MU1 4
6!H4
OSW3 1 1 0 6E5 OSW3 1 1 1 6SK7
Pl509 Pl52 1
40GK6 29KQ6
I&.
MV6-5
6SA7GT
OSW3 1 1 2 6J5
Pl80 1
1 2FB5
�
N2ED N14
6HT5 l C5GT
P 1 7A PABC80
807 9AK8
Pl820 P l 1 26 7
2 1 A6 OA4G
N15
3Q5GT
PC86
4CM4
PllBO
1 2HU8
N16
3Q5GT
PC88
4014
PM04
6BA6
N17
3S4
PC89
7F7
PM05
6AK5�
N18
3Q4
PC93
4B54
PM07
6AM6
N19
3V4
PC95
4GK5
PM95
6AK6
N22ll
1 9KF6
PC97
4FY5
PP6BG
6M6G�
N25
3C4
PC900
4HA5
PY80
1 9X3
N30El
6lF6
PCC84
7AN7
PY8 1
1 7Z3
N47
6AM5
PCC85
9AQ8
PY82
1 9Y3
N63
6K6GT
PCC88
7DJ 8
PY83
1 7Z3
N66
6l6GT
PCCB9
7FC7
PY88
30AE3
N77
6AM5
PCC 1 86 7AU7
PY301
1 9C54
N78
6BJ5
PCC 1 89 7ES8
PY500
42EC4
Nl 19
45B5
PCC805 7EK7
PY800
1 7Z3
N 1 42
45A5
PCE800 9GB8
PY801
1 7Z3
94
* Parallel�filament circuits.
� May not work in all circuits.
To Replace Use
To Replace Use
To Replace Use
QA2401 6 1 35
SM1 50-30 OA2
U349
1 7Z3
QA2404 5726
SP6
6AM6
U3S 1
3SA3
QA2406 1 2AT7WB
SR2
OG3
U707
6X4
QA2407 6201
SR3
OB2
U709
6CA4
QA240S 5692
SR55
OB2
U71S
6BT4*
QB65
6SN7GT
SR56
OA2
UAF42
1 2S7
QB309
1 2AT7
STRS5/ 1 0 OG3
UBC41
1 4L7
QB5/1 750 6079
STR 1 0S/30 OA2
UBCSO
1 4G6
QE03 / 1 0 5763
STR 1 50/30 OA2
UBCS 1
1 4G6
QE05/40 6 1 46
STVS5/ 1 0 OG3
UBFSO
1 7CS
QE05/40H 6 1 59
STV1 0S/30 OB2
UBFS9
1 9F1S
QE06/50 S07
STV1 50/30 OA2
UC92
9AB4
QL77
6C4
SU61
6X2
UCCS5
26AQS
QM556 QM557
6X4W 5654
T60 T2M05
2B35 6J6
UCH42 UCHSO
1 4K7 1 4Y7
�
QM55S 5725
T77
6C6
UCH S 1
1 905
QM559 QN77
5726 6AM5*
TH62 TTZ63
6ESG* 6J7
UCLS2 UF41
50BMS 1 2AC5
"'1'1
0
;:Ill!
QQE02/5 6939 QQE03/ 1 2 6360
TM 1 2
6J4
U26
212
UFSO UFS5
1 9BX6 1 9BY5
m
C5
QQE03/20 6252
U31
25Z4GT
UFS9
1 20A6
Z
QQE06/40 5S94
U37
1 12
UL41
45A5
I
QQV02-6 6939
U41
1 B3GT
ULS4
45B5
QQV03-1 0 QQV03-20 QS1 50/40 QS1 205 QS 1 206
6360 6252 003 OA3 OC3
U43
6X2
U45
6X2*
U49
2J2
U50
5Y3GT
U51
5W4GT
UMSO UMS4 UN954 UN955 UQSO
1 9BR5 1 2FG6 954 955 1 2BE7
m
;:Ill!
n
Z
QS1 207 OA2
U52
5U4G
UU5
6B14
QS 1 20S OB2
U70
6X5G*
UU9
6BT4*
10
Q S 1 209 565 1 A
U74
35Z4GT
UU12
6CA4
QS1 210 QS121 1
OA2WA OB2WA
U76
35Z4GT
U77
5AR4
UY41 UY42
3 1 A3 3 1 A3
..., ... 0
QS2404 5726
U7S
QS2406 1 2ATlWA
US2
6X4* 7Y4*
UYS2 UYS5
55N3 3SA3
...
QV03-1 2 5763
UllS
3 1 A3
UYS9
3SA3
...
QV05-25 S07
U119
3SA3
V2M70 6X4
...
QV06-20 6 1 46
QW77
6CQ6
U 1 42 U 1 45
3 1 A3 3 1 A3
V61 V l 77
6B14 6CQ6
�
QZ77
6AM6
U 1 47
6X5G
V31 1
3 1 A3
R3
1 W4
U 1 49
7Y4
V31 2
3 1 A3
R12
6X2
U 1 50
6BT4
V741
6C4
R16
1 12
U151
6X2
VSS4
6CQ6
R19
1 X2A
U 1 52
1 9X3
VSS6
6AM5
R20
2J2
U 1 53
1 7Z3
VP6
6CQ6
R52
5Z4G
U 1 54
1 9Y3
VP1 20
1 2CS
R 1 44
6AM6
U191
1 9C54
V R 1 50
003
RL21
2021
U 1 92
1 9Y3
VTS3
83
R 1 1 267 OA4G
U 1 93
1 7Z3
W17
1 14
RS2
5Z4
U251
1 7Z3
W25
1 AJ4
RS1 029 6360
U309
1 9X3
W61
6K7
S6F 1 2
6AM6
U31 9
1 9Y3
W63
6K7
S856
OA2
U329
25BR3
W76
1 2K7*
SS60
OB2
U339
1 9C54
W77
6CQ6
* Parallel-filament circuits.
� May not work in all circuits.
95
To Replace Use
W81
7A7
WllO
1 3EC7
Wl 18
1 2AC5
W1l9
1 3EC7
W 1 42
1 2AC5
W 1 43
7A7*
W 1 45
1 2AC5
W 1 47
6K7*
W 1 48
7A7
W 1 49
7B7
W 1 50
6CJ5
W71 9
6BY7
W727
6BA6
W739
6EC7
�
W01 42
1 257
W0 1 50 6CT7
0 0 0
W0709 6NS
WT301
S3
...
N N
X14 X17
l A7GT I RS
I
XIS
l AC6
...
00
X20
l AC6
X25
l AB6
X61 M
6ESG
X63
6AS
Z
X64
6L7
-(
X65
6ES
U
X71M
1 2K8
aIlIo:l
-( I
X73 X73M X76M X77
60S* 60S' 1 2K8GT 6BE6
Z
X79
6AE8
Ilol aI:
0l&-
�
To Replace Use
X81 X l 07 Xl19 X 1 42 X 1 47 X 1 48 X 1 50 X 1 55 X319 X719 X727
XAA9 1 XB91 XC95 XC97 XC900 XCCS2 XCC 1 S9 XCFSO XCFS2 XCFS6 XCFSOI XCHSI XCLS2 XCLS5 XFSO XFS5 XF94 X F 1 S3 X F 1 S4 XL36 XL84 XLS6
757 1 8FX6� 1 908 1 4K7 6E8G 757 6CU7* 6818 635 1 6AJ8 6BE6
3AL5 3AL5 2ER5 2FY5 2HA5 7AU7 4ESS 4BLS SUS 2HRS 4GJ7 3AJS SBS 9GVS 3BX6 3BY7 3AU6 3EH7 3EJ7 1 3CM5 SBQ5 SCW5
To Replace Use
XL500 XX8 XXO XXFM XY88
Y25 Y64 YC95 YC97 YCC 1 89 YCF86 YCL84 YF1S3 YF1 S4 YLS4 YLS6 Z14 Z63 Z77 Z 1 50 l 1 52 Z300T Z329 Z550M Z71 9 Z729 Z749 Z900T ZA2 lO1 7 Z025 Z01 52 ZZl OOO
1 3G85 3C6 1 4F7 7X7 1 6AQ3
1 M3 6U5 3ER5 3FY5 5ES8 5HG8 1 00X8 4EH7 4EJ 7 1 0BQ5 1 0CW5 l N5GT 6J7 6AM6 6CU7 6BX6 OA4G 7ED7 S453 6BX6 6267 6El7 5S23 954* 1 55 l AH5 6N8 S22S
96
� Parallel�filament circuits.
� May not work in .11 circuits.