094 903123C_Hallicrafters_SX 117_Operating_And_Service_Instructions_Nov1968 903123C Hallicrafters SX 117 Operating And Service Instructions Nov1968
User Manual: 094-903123C_Hallicrafters_SX-117_Operating_And_Service_Instructions_Nov1968
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OPERATING AND
SERVICE INSTRUCTIONS
FOR •••
COMMUNICATION
RECEIVER
MODEL 5X-117
"The Hallicrafter's Company warrants each new radio product manufactured by it to be free. from defective material and workmanship
and agrees to remedy any such defect or to furnish a new part in exchange for any part of any unit of its manufacture which under normal installation, use and service discloses such defect, provided the
unit is delivered by the owner to our allthorized radio dealer, wholesaler, from whom purchased, or, authorized service center, illtact, for
examination, with all transportation charges prepaid within ninety
days from tile date of sale to original purchaser Imd provided that
such examillation discloses in our judgment that it is thus defective.
This warranty 'does not extend to allY of Ollr radio products which
have been subjected to misuse, neglect, accident, illcorrect wiring IIOt
our own, improper installation, or to use in violation of instrllctions
furnished by us, nor extended to units which have been repaired or
altered alit side of Ollr factory or authorized service center, nor to cases
where the serial number thereof has bel'li removed, defaced or changed,
nor to accessories used therewith IIOt of our own manufacture.
Any part of a unit al'llroved for remedy or exchange hereunder will
be remedied or exchanged by the authorized radio dealer or wholesaler without charge to the owner.
This warranty is in lieu of all other u:arranties expressed or iml,lied
and no representative or I,erson is allthorized to assllme for liS allY
other liability in connection witl. tl.e sale of our radio products:'
092-016679
Figure 1.
Hal/icrafters' Model SX - 117.
SECTION I
GENERAL DESCRIPTION
The Model SX-117 is a triple--conversion, superheterodyne-type communications receiver having
the following features:
• Excellent spurious and image rejection.
• Selectable sidebands.
• Operation on most fr equ encies from 85 KC to
30 MC (see paragraph 5-7).
• A VFO which can be used as a crystal- locked
oscillator for fixed-channel operation (see
paragraph 5-8).
•
Selectivity variable in thr ee steps, 500 CPS,
2.5 KC, and 5 KC.
•
Amplified fast -attack, slow-release AVC for
SSB/ CW; fast-attack, fast-release for AM.
• Product detector for SSB/ CW; envelope detector for AM.
• A high order of mechanical and electrical
stability.
• IF-type noise limiter.
• An easy-to- r ead dial.
• 100-KC Crystal Calibrator.
• A constant tuning rate on all bands.
•
Audio inv erse feedback.
•
Approximate 1-KC marks on tuning knob skirt.
•
Variable T-Notch rejection filter.
• A transmitter-type VFO.
• Backlash-fr ee combination pinch and g ear
drive.
•
Crystal-controlled first and third conversion
oscillators.
•
Less than 1/ 2 microvolt sensitivity on SSB/ CWo
• Gr eatly r educed weight through us e of aluminum for c hassis, panel, cabin et, brackets, etc .
• New smaller size.
-/ -
SECTION II
TECHNICAL SPECIFICATIONS
Basic Frequency Coverage
*WWV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.5 MC to 10.0 MC
80-Meter Band. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
3.5 MC to 4.0 MC
40-Meter Band
7.0 MC to 7.5 MC
20-Meter Band
14.0 MC to 14.5 MC
15-Meter Band
21.0 MC to 21.5 MC
*10-Meter Band
28.0 MC to 28.5 MC
10-Meter Band
28.5 MC to 29.0 MC
*10-Meter Band
29.0 MC to 29.5 MC
*10-Meter Band
29.5 MC to 30.0 MC
*Crystals not supplied.
Note - See paragraph 5-7 for additional information.
IF Frequencies: . . . . . . . . . . .
6.5 MC to 6.0 MC (Variable), 1650 KC, and 50.75 KC.
Reception: . . • . . . . . . . . . . . .
AM, CW, and Single Sideband (SSB).
Sensitivity - AM: . . . . . . . • . . .
3 MC to 30 MC
Less than 1 microvolt for 10-DB signal-to-noise ratio
(30% modulation).
Sensitivity - SSB/CW: . . . • . . .
3 MC to 30 MC
Less than 1/2 microvolt.
Sensitivity (with HA-10):
85 KC to 3 MC
5 to 10 microvolts.
Selectivity:
Variable in three steps providing 0.5 KC, 2.5 KC, and 5 KC
at 6 DB down.
Stability: . . . . . . • . . . . . . . . .
Better than 300 CPS after warmup.
Calibration Accuracy: . . . . . . .
Better than 2 KC between adjacent 100-KC calibration
points after indexing.
IF Rejection: . . . . . . . . . . . . .
More than 50 DB.
In-Band Tweets: . . . . . . . . . . .
Less than 1/2 microvolt equivalent (within amateur bands).
Audio Power Output: . . . . . . . .
3/4 watt with less than 10% distortion.
AVC Figure of Merit:
More than 80 DB.
Power Source: . . . . . . . . . . . .
105 volts to 125 volts, 50/60
Power Consumption: . . • . . . . .
70 watts.
Number of Tubes: . . . . . • . . . .
14
Audio Output Impedance:
3.2 ohms and 500 ohms; rear-mounted screw terminals.
Headphone Output: . . • . . . . . . .
50 ohms to 2000 ohms; panel-mounted jack accepts
standard 1/4-inch plug.
Antenna Input Impedance:
(High Frequency)
50 ohms to 70 ohms unbalanced; rear-mounted RCA-type
phono jack accepts RCA-type phono plug.
cycles~
(one not supplied), plus four silicon diodes.
NOTE: Chassis punched to accept Amphenol Type SO-239 coaxial receptacle; for use
from 3.0 MC to 30 MC.
-2-
Low Frequency Input:
High impedance to first mixer grid; for use with externaltuned circuit from 85 KC to 3.0 MC. RCA-type phono
jack accepts RCA-type phono plug.
Remote Standby Control:
Rear-mounted screw terminals.
Demensions:
7-3/4 inches high, 15 inches wide, and 14-3/4 inches deep.
Net Weight:
18-1/2 pounds.
Shipping Weight:
21 pounds (approximately).
PRODUCT
DETECTOR
BEAT
FREQUENcY
OSCILLATOR
{BFO!
CATHODE
CATHODE
FOLLOWER
FOLLOWER
VARIABLE
CRYSTAL
FREQUENCY
OSCILLATOR
OSCILLATOR
tVfO)
(OPTIONAL)
L ________ -1I
FIRST
AUDIO
AMPLIFIER
AUDIO
OUTPUT
092-015642
Figure 2.
Block Diagram of the Receiver.
TUBES AND FUNCTIONS
6DC6
RF Amplifier
6EA8
Third Mixer, SSB-Switching Crystal
Oscillator
6EA8
First Mixer, Cathode Follower
6BA6
50.75-KC IF Amplifier
12AT7
Amateur-Band Crystal Oscillator
6BE6
Product Detector, BFO
Auxiliary Crystal Oscillator
6BN8
AM Detector, AVe Amplifier, AVC
Rectifier
6BA6
6-MC to 6.5-MC IF Amplifier
6GW8
First Audio Amplifier, Audio Output
6BE6
Second Mixer
6AU6
100-KC Crystal-Calibrator
Oscillator
6EA8
VFO, Cathode Follower
Two each Silicon Noise- Limiter Diodes.
6DC6
1650-KC IF Amplifier
Two each Silicon Power-Supply Diodes.
*6EA8
*Not Supplied
-3-
SECTION III
INSTALLATION
3-1.
UNPACKING .
3-3.
After unpacking the receiver, examine it
for damage which may have occurred in transit.
Should any sign of damage be apparent, file a claim
immediately with the carrier stating the extent of
damage. Carefully check all shipping labels and
tags for instructions before removing or destroying them.
The Model SX-117 uses an input circuit designed for an unbalanced 50-ohm to 70-ohm input.
Any of the popular dipole or beam antennas using
50-ohm to 70-ohm coaxial transmission line will
suffice. It should be remembered, however, that
these antennas will give optimum results over a
limited frequency range only. Generally speaking,
the same rules that apply to transmitting antennas
will hold true for receiving antennas. For further
information on this subject, refer to the "Radio
Amateur's Handbook" or the " A. R. R. L. Antenna
Book," both published by the American Radio Relay League, West Hartford, Connecticut, U.S.A.
IMPORTANT
To remove top cover, turn screws
approximately one quarter turn
counterclockwis e.
Do not attempt to remove screws.
3-2.
ANTENNAS .
IMPORTANT
Some form of lightning protection
should be provided which will comply
with local-code requirements.
LOCATION.
The receiver may be placed in any location
that will permit free air circulation through the
ventilation holes and openings in the cabinet.
Avoid excessively warm locations such as those
near radiators and heating vents. Also avoid direct
blasts of air from circulating fans, etc. Do not
place speakers or any other objects on the cabinet
cover in a manner that will impair natural ventilation.
3-4.
GROUNDS .
All station equipment should be bonded together with heavy copper wire or braid and connected to a cold -water pipe or earth ground. An
external chassis ground terminal is provided on
the rear of the Model SX-117 for this purpose.
o
•••• wr.·
VFO
OUTPUT
FUSE
FI
I AMP
CRYSTAL
LF ANTENNA
OSCILL ATOR
OUTPUT
•~e·•
ANTENNA
CHASSIS
GROUND
092-016680
Figure 3.
View Showing Rear Chassis Connections .
-4-
3-5.
The Hallicrafters Model R47 Speaker is
particularly suited for voice and CW use. Model
R48A Speaker, with its two-position VOICE- FIDELITY switch will give excellent results for all
modes of operation. The leads of either speaker
are to be connected to the terminals marked 3.2
and G.
POWER SOURCE.
The SX-117 is designed to operate from a
105-volt to 125-volt, 50/60-cycle, AC power
source. Power consumption is 70 watts.
NOTE
3-7.
If in doubt about your power source,
HEADPHONES.
The headphone jack marked PHONES is located on the front panel and is wired so that the
3.2-ohm speaker output is automatically disabled
when the headphones are inserted. The headphone
impedance is not critical, and any headphones
ranging in impedance from 50 ohms to 2000 ohms
will provide satisfactory performance.
contact your local power company
prior to inserting the power cord into
any power outlet. Plugging the power
cord into the wrong source can cause
extensive damage to the unit.
3-6. SPEAKER.
It should be noted that, although insertion of
the headphone plug into the front panel jack will
silence the 3.2-ohm speaker output, the 500-ohm
output will remain in operation at all times.
A terminal strip, marked G, 3.2, and 500, is
provided at the rear of the receiver for connecting
an external speaker or line (see figure 3). Any permanent-magnet type speaker with a 3. 2-ohm voice
coil can be used by connecting the two leads from
the speaker voice coil to the terminals marked
3.2 and G. If it is desired to use a speaker with
a voice-coil impedance other than 3.2 ohms, a
matching transformer should be employed to insure optimum performance. The transformer
should be mounted on or near the speaker, should
have a 500-ohm primary impedance, and should
have a secondary impedance to match that of the
speaker voice coil. Connect the primary of the
matching transformer to the terminals marked
500 and G and the secondary to the speaker voice
coil terminals.
3-8.
REMOTE RECEIVE-STAN DB Y
SWITCHING.
The receiver may be disabled from a remote location by removing the jumper between the
terminals marked STANDBY and G on the rear of
the chassis and then connecting a SPST switch or
relay between these terminals. The switch or relay contacts should be so wired as to close in Receive and open in Transmit.
The receiver may also be disabled in Transmit by turning the RF GAIN control to 0 (fully
counterclockwise).
SPEAKER
~V.cy
3.2fi
r-
NOTE: DOTTED LINES INSIDE BOXES
DENOTES INTERNAL WIRING
CONTROL
OUTLET
~
03
50s o
02Q 70
RECEIVER
OUTPUT
ANT.
INPUT
500
~tND'POST l
0
3.2
':Jl.- -
HT33B,HT4I, OR
TYPICAL LINEAR AMPL.
TO GRID
FINAL
T""'-'T---'--- RETURN
BIAS -........"
SUPPLY
'
OPERATING
BIAS
R F "" RG58IL ""
RESISTOR
OUT ~
~ I,
~
HT 32B - HT37
SXIOI- SXIII - SXI15
GND-,
'*' '*'
T
T
NC~_~----,
NO - - 0 - _~_ _ _ _I :
I I
R~ .r---'
NC4---~
NO---o-:-:'
GND POST-*-
~r:;~~~-.r:4
W'
~FOUTPUT
NC
~NO
STANDBY
BIAS
RESISTOR
ANTENNA
\,7
~
GND @
.....,...;.PO..;,.S;;...T-t-_ _ _ _ _ _.......
RG8/U
ADJUST FOR
~~~~
LEVEL
*
I
~,-::-i==~it:OK~~=L=-==~====-=J~I===========+~====~--------~--------~R~G5~8~/~U____~J ~~~
l
rb :----,:I
I
STAND-BY]
1
TERMINAL
,
TO
CHASSIS
GND
@
I
I
:
CHANGE OVER
RELAY
I
3.2!l
I
SPEAKER4 J
TERMINAL
p~~~L -_ _ _ _ _ _ _ _...
SX-117
~,:, ANTENNA
:
iANTENNA
'INPUT
- - - - - - - - - - - - - - - - - - - -NOTE: ALL CHASSIS SHOULD
* NOTE: USE
OF 10K POT FOR
MONITERING LEVEL OPTIONAL
(NOT SUPPLIED l.
BE BONDED TOGETHER
AND TO EARTH OR
WATER PIPE GROUND.
TO
117VAC
092-014605
Figure 4.
Typical Station Setup.
-5-
R.f. GAIN
4
5
HGAIN
,',0:'
"ot'
,
:,0:'
10
10
XTAL SELECTOR
1
NOTCH fREO.
·"~·o·'
ha//;craliers
.
MODEL SX-117
TUNING
•
•
53
BANOSELECTOR
20
21
fUNCTION
AM
14
USB
5.0 1.5 0.5
· ""6·:'0"'(:) 0
':':u: (j19:9·~L~WWO
"::0:"
PHONES
54
SELECTIVITY
CAL RESET
BfO
092-015915
Figure 5.
Front Panel View of Receiver.
SECTION IV
FUNCTIONS OF OPERATING CONTROLS
4-1.
It should be noted that several bandswitch
positions are identified by a red dot. When the
switch is rotated to one ofthese positions, the red
dial scale should be used.
RF GAIN CONTROL.
The RF GAIN control varies the gain of the
RF amplifier and the 50. 75-KC IF amplifier. Maximum sensitivity is obtained with the control set
at 10 (fully clockwise). In this position, the tubes
being controlled are operating at maximum gain
with minimum cathode bias. As the control is rotated counterclockwise, the cathode bias is increased with a resultant decrease in gain.
In the LF position, the bandswitch disconnects the internal-tuned circuits and connects
the first mixer grid to the LF INPUT jack on the
rear panel.
4-3.
The normal setting of the RF GAIN control
will vary with conditions. When searching for weak
signals, the control should be well advanced. When
copying strong signals under crowded or noisy
conditions, it may be found desirable to reduce
the RF GAIN control setting.
The PRESELECTOR control provides precise tuning of the antenna and mixer coils to give
maximum gain and optimum signal-to-noise ratio.
It also allows coverage of the entire 3.0-MC to
30-MC range (see paragraph 5-7).
It should be remembered that the S-Meter
calibration will be correct only with the RF GAIN
control fully advanced to 10.
NOTE
Care should be exercised when setting
the PRESELECTOR control on the 40meter (7.0 MC) or WWV bands. It is
possible to tune the PRESELECTOR
control to the 6.5-MC to 6.0-MC first
IF frequency. The correct setting for
the 40-meter band is indicated by the
block marked 40. The correct setting
for WWV (9.5 MC to 10 Me) will be between 8 and 9 on the PRESELECTOR
logging scale.
AVC is automatically controlled by the RF
GAIN control so that it is not necessary to disable the AVC circuitry for any mode of reception.
4-2.
PRESElECTOR.
BAND SElECTOR CONTROL.
The BAND SELECTOR control operates the
bandswitch to place the proper crystal and coils
into the circuit to cover the desired frequency
range.
-6-
· Under certain conditions where excessive
noise or interference is encountered, it may be
found desirable to slightly detune the PRESELECTOR control for optimum reception.
KC OFF RESONANCE
10
8
6
4
iI ;,
6
4-4.
AF (AUDIO) GAIN CONTROL.
2
4
6
8
10
\\
,
\
I 1!
I:
30
I
I;
i
\ I
SELECTIVITY SWITCH.
1\
CW
0.5 KC or 2.5 KC
SSB
2.5 KC
AM
2.5 KC or 5.0 KC
~
I
~ 40
1\ \
\
,
',
1\
I
I
!i
III
a
II
1\ \
;
\
.5
KC
I
\ 1\
I
1
80
;
f
!
I
J
I
\\
KC
!
FUNCTION SWITCH.
\ 1\
2.5
5
KC
60
\
I
I
!
Function
I
I
;!
w
I-
The FUNCTION switch is afour-positionrotary switch performing the following functions:
I
I
;
z
o
The recommended positions for the various
modes of operation are as follows:
Position
-
~
;
J
The SELECTIVITY switch is used to vary
the IF bandwidth to suit receiving conditions.
Three degrees of selectivity are available, ranging from 500 CPS for CW reception under
crowded-band conditions to 5 kilocycles for maximum fidelity on voice or music-modulated signals
where conditions permit. The three positions are
marked on the front panel and indicate the 50.75KC IF bandwidth at the 6-DB points. See figure
6 for typical IF selectivity curves.
4-6.
+0
j I
The AF GAIN control adjusts the audio output level at the speaker terminals and PHONES
jack. Clockwise rotation increases the signal
voltage applied to the grid of the audio amplifier, thus increasing the audio output.
4-5.
2
(
\\
\
I
I
"
\
I
o
\
\
\
092-016760
Figure 6. IF Selectivity Curves.
OFF. . •. disconnects the 117-volt, 60cycle, AC power.
c. Selects fast-attack,
release AVC.
AM . . . . . a. Connects the 117-volt, 60cycle, AC power.
slow-
d. Connects the 1700-KC sideband-switching crystal.
b. Disables the BFa.
c. Connects audio to the envelope detector.
LSB . . .. a. Connects audio to the product detector.
d. Selects fast-attack, fast-release AVC.
b. Energizes the BFa.
e. Connects the 1700- KC sideband-switching crystal.
c. S e I e c t s fast-attack, slowrelease AVC.
USB . . . . . a. Connects audio to the product
detector.
d. Connects 1600- KC sidebandswitching crystal.
b. Energizes the BFa.
-7-
are produced: the carrier frequency at 50 KC,
the lower sideband at 51 KC, and the upper
sideband at 49 KC. By referring to figure 7D,
it can be seen that the lower sideband falls
within the IF passband and the upper sideband is
rejected. When the FUNCTION switch is placed
in USB position, the carrier frequency remains at
50 KC but the sidebands are reversed in the heterodyning process. The upper sideband will now be
51 KC and falls within the IF passband, while the
lower sideband will appear at 49 KC and be
rejected.
To illustrate how selectable-sideband reception is accomplished, a numerical example is
given. Consider an incoming signal at 7000 KC,
modulated 1 KC. Since modulation of a carrier
causes the generation of sideband frequencies
numerically equal to the carrier frequency plus
or minus the modulation frequency, the incoming
signal consists of ,the carrier at 7000 KC, a
lower sideband at 6999 KC, and an upper sideband at 7001 KC. See figure 7A.
The incoming signal is first heterodyned
with the output of the first conversion oscillator
in the first mixer. The first conversion oscillator
operates at a frequency higher than the incoming
signal by an amount equal to the first IF frequency of 6.500 MC (variable IF). As a result of
this, three new lower frequencies are produced
in the output of the first mixer: the carrier at
6.500 MC, the lower sideband at 6.501MC, and
the upper sideband at 6.499 MC. These signals
are amplified by the 6.500-MC to 6.000-MC IF
stage and then heterodyned with the output of
the VFO (4.85 MC to 4.35 MC) in the second
mixer. Three new lower frequencies are again
produced in the output of this mixer stage: a
center frequency of 1650 KC, a lower sideband
of 1651 KC, and an upper sideband of 1649 KC.
These signals are amplified by the 1650-KC IF
amplifier and fed to the third mixer, where they
are heterodyned with the output of either the
1600-KC (lower sideband) or the 1700-KC (upper
sideband) crystal-controlled third conversion oscillator. When the FUNCTION switch is placed
in the LSB position, three new lower frequencies
4-7.
NOTCH FREQ (FREQUENCY) CONTROL.
The NOTCH FREQcontrol varies the notch
frequency within the 50.75-KC IF passband and is
very useful in attenuating an undesirable heterodyne. Since the notch width is quite narrow, it is
essentially a single-frequency device and cannot
attenuate more than one heterodyne if the heterodynes are separated in frequency by more than
500 CPS.
The NOTCH FREQ control is very effective
when using exalted carrier reception (AM with
BFO on). The notch control is adjusted to approximately 50 KC so that the incoming signal carrier
is removed. This will remove the low-frequency
heterodyne which may be heard if the receiver is
not tuned to exactly zero beat with the incoming
signal. The AM signal under these conditions will
tune similar to double-sideband suppressed carrier and may be received in the USB (uppersideband) or the LSB (lower-sideband) position.
S,4NC TRAP
INCOMING SIGNAL
OUTPUT OF I ST MIXER
OUTPUT OF 2ND MIXER
NOTE:
LSB-LOWER SIDEBAND
USB-UPPER SIDEBAND
NOT TO SCALE. ILLUSTRATION ONLY
3RD CONV, OSCILLATOR
FREQ,= 1600KC
3RD CONV, OSCILLATOR
FREO,=1700KC
OUTPUT OF 3RD MIXER
092-01581S
Figure 7.
Selectable-Sideband Response Curves.
-8-
---.t
58
3KC CURVE
If -KC
54
t-- NOTCH
50
LSB. The beat note should not change frequency.
fREQUENCY RANGE
46
42
If it does, adjust the BFO control until the beat
note frequency remains the same in the USB or
LSB position. The control should always be at
this point.
r-~
WITHOUT NOTCH - - :
'
6r-------------~_,~---J~----~--~
4-9.
TUNING CONTROL.
20
The TUNING control is used to vary the frequency of the VFO to allow reception of the desired signal. It also rotates the dial past a stationary pointer to indicate the frequency in kilocycles.
::E
~
~
~
::E
""
>=
C>
co
c
c
.............
0
..,
~
:z
..,
40
It should be noted that two scales appear on
the dial: 0 to 500 KC and 500 KC to 1000 KC. If
the band being tuned starts at the even megacycle,
(e.g., 7.0), the frequency is read on the 0 to 500KC scale; ifthe band starts on 0.5 megacycle (e.g.,
3.5), the frequency is read on the 500-KC to 1000KC scale.
CD
co
60r----7----------+-------~----~--~
If the BAND SELECTOR is set opposite ared
dot, the red dial scale should be used to indicate
the correct frequency.
The skirt on the TUNING knob is divided
into 15 segments. Each division will represent
approximately one kilocycle of frequency change.
80~----------------------------~--~
092-203878
Figure 8.
IF Selectivity with Notch.
The notch calibration is quite accurate and
may be used as a guide in determining where the
NOTCH FREQ control should be set to attenuate
an interfering signal, provided the BFO frequency is set as described under BFO operation.
For example, if the heterodyne is approximately
1000 CPS, the null point would be near 51 KC. If
the heterodyne is 2000 CPS, the null point would
be near 52 KC, etc.
4-8.
4-10.
CAL RESET CONTROL.
The CAL RESET control operates a variable
trimmer to allow the VFO calibration to be set
exactly to frequency at any check point.
If the dial calibration does not agree with the
frequency of a known signal, such as a crystal
calibrator, the CAL RESET control should be
adjusted as necessary to correct the calibration
error.
BFa CONTR OL.
The BFO control is a front-panel adjustment which allows the beat frequency oscillator
to be set at exactly 50 KC.
4-11.
OFF-NL-CAL SWITCH.
NOTE
The OFF-NL-CAL control is a three-position rotary switch performing the following functions:
The BFO control should not be used
for tuning purposes as the BFO frequency must be maintained if optimum
performance is to be obtained.
The correct setting will be near the point
where the knob and panel marks coincide. The
exact point may be found by placing the FUNCTION
switch in USB, the SELECTIVITY control at 5.0
KC, and tuning in a CW signal or crystal calibrator
to near zero beat. Switch the FUNCTION control to
-9-
1.
OFF - In this position, both the noise
limiter and 100-KC crystal calibrator
circuits are disabled.
2.
NL - In this position, the noise limiter
is placed in operation (see paragraph
5-6).
3.
not supplied) and the receiver will
operate on the ranges indicated by the
BAND SELECTOR knob.
CAL - In this position, the 100-KC
crystal calibrator is placed in operation to provide marker signals at
every 100-KC point on the dial.
2.
1 AND 2 - Positions 1 and 2 of the
XT AL SELECTOR switch will disable
the 12AT7 fir st crystal oscillator,
apply voltage to the 6EA8 auxiliary oscillator, and select crystals inserted
in auxiliary crystal sockets 1 or 2.
Use only type CR-18/U crystals whose
frequencies fall between 6.5 MC and
20.00 MC (inclusive) in these sockets
(see paragraph 5-7).
3.
3 AND 4 - Positions 3 and 4 also disable the 12AT7 first crystal oscillator, apply plate voltage to the 6EA8
auxiliary oscillator, and select crystals inserted in auxiliary crystal
sockets 3 and 4. Use only type CR23/U crystals whose frequencies fall
between 20.5 MC and 34.0 MC (inclusive) in these sockets (see paragraph
5-7).
NOTE
The 100-KC crystal calibrator should
not be left in the ON position after
dial calibration is completed. Under
certain conditions it can cause spurious responses to be developed.
4-12.
XTAL SElECTOR SWITCH.
The XTAL SELECTOR switch is a fiveposition rotary switch performing the following
functions:
1.
NORMAL - In the NORMAL position,
plate voltage is removed from the
auxiliary crystal oscillator (6EA8
SECTION V
OPERATION
5 -1.
XTAL CAL
SINGLE-SIDEBAND RECEPTION.
Set the front panel controls as outlined
below.
OFF
NL (Noise Limiter). Use as noise conditions dictate.
RF GAIN. . . . . • .. Usually at 10 (maybe
reduced as noise and
QRM dictate).
TUNING . . . . . . .. As desired.
Slowly adjust the TUNING control until the
voice modulation sounds natural. Peak the PRESELECTOR for maximum S-Meter indication and
adjust the AUDIO GAIN control as desired. If an
undesirable heterodyne appears, ad jus t the
NOTCH control for maximum attenuation.
NOTE
S-Meter reading will be correct only
with the RF GAIN control set at 10.
BAND SELECTOR•. To desired band.
AUDIO GAIN . . • .. Approximately 2.
It should be remembered that an SSB signal
will convey intelligence only when the correct
sideband position has been selected on the FUNCTION switch. If the signal does not tune in properly, change the FUNCTION switch to the other
SSB position and retune.
SELECTIVITY . . . . 2.5 KC.
FUNCTION . . . . .. Usually LSB for 80
and 40 meters and
USB for 20, 15and10
meters.
BFO . . . . . . . . . .. Center or 0 position
(do not use BFO control for tuning purposes).
The RF GAIN control should normally be
set at 10 (maximum sensitivity). Under adverse
conditions, it may be found advantageous to reduc e
the RF GAIN to improve reception. It should be
remembered that, as the RF GAIN is reduced, the
AVC will be reduced. Also, correct S-Meter
readings will be indicated only with the RF GAIN
at 10.
NOTCH . . . . . . . . . OFF
PRESELECTOR . .. Peaked for maximum
signal.
-10-
5-2.
This type of distortion can be reduced considerably by utilizing the selectable-sideband
feature of the Model SX-117 receiver operating in
an exalted carrier mode (i. e., the transmitted carrier is positioned out of the receiver's IF passband along with one sideband, producing a suppressed carrier single-sideband signal). The carrier is subsequently reinserted by the receiver's
BFO and the signal is detected in the same manner
as a single-sideband signal.
CW RECEPTION.
Set all controls as described under singlesideband reception except for the SELECTIVITY
and noise limiter controls.
The SELECTIVITY control will usually be
in the 0.5 KC position for CWo
The NL (noise limiter) can be used to advantage at all times in CW reception and will be
very effective in reducing impulse noise, key
clicks, etc.
All controls should be set as described under single-sideband reception. Place the FUNCTION switch in the SSB position that gives best
reception. In addition, the NOTCH control should
be adjusted to the carrier frequency (approximately 50 KC) to null out the incoming signal
carrier.
The NOTCH control should be used as
necessary to attenuate interfering signals and
heterodynes.
If noise conditions warrant, the noise limiter
should be used.
The RF GAIN control should be adjusted
as conditions dictate for best reception.
5-5.
NOTE
The S-Meter provides a visual means of
determining whether or not the receiver is
properly tuned, as well as providing an indication
of the signal strength. The S-Meter is calibrated
in S-units to 9 and in decibels to 70 DB above S9.
The meter calibration will be correct only when
the RF GAIN control is set at 10 (fully clockwise).
Do not use the BFO control for tuning
purposes.
5-3.
AM RECEPTION.
Set all controls as described under singlesideband reception except for the FUNCTION control. The FUNCTION control should be placed in
the AM position.
S9 represents a 50-microvolt signal at the
antenna input. Each S-unit represents approximately 6 DB change in signal strength.
The SELECTIVITY control maybeplacedin
the 5.0-KC position for improved fidelity where
band conditions permit.
For accurate readings, the meter zero
should be checked periodically. To adjust the
electrical zero on the meter, turn the RF GAIN
control to 0 (fully counterclockwise). Rotate the
Meter Zero control as necessary so that the meter
pointer is aligned with the last calibration mark on
the left side of the meter scale.
The RF GAIN control will normally be set
at 10 for AM reception except on extremely strong
local signals.
If the NL (noise limiter) is used on AM,
distortion can be reduced by reducing the RF
GAIN control setting to the lowest practical
level.
IMPORTANT
To remove top cover, turn screws
a p pro x i mat ely one quarter turn
counterclockwise.
Do not attempt to remove screws.
The NOTCH control should be used as necessary for removing undesirable heterodynes.
5-4.
USE AND ADJUSTMENT OF S-METER.
The Meter Zero control may be found directly under the rear of the meter housing.
EXALTED CARRIER AM RECEPTION.
CAUTION
In short-wave reception, it frequently happens that transmission conditions are different
for waves of slightly different frequencies. As a
result, in the case of voice modulated transmissions, AM particularly, which involve sideband
frequencies differing slightly from the carrier
frequency, the carrier and sideband components
may not be received in the same relative amplitudes and phases that were present at the transmitter. This effect, known as selective fading,
causes severe distortion of the signal.
Do not disturb the adjustment of the
Notch Depth or Factory Gain controls.
5-6.
USE OF NOISE LIMITER (NL).
The noise limiter is an IF-type limiter and
is very effective in reducing impulse-type noise
particularily on SSB and CWo It will be found useful on AM as well. Recommended use is as folows:
-11-
5-7.
For CW Operation:
The noise limiter should be on at all
times for elimination of impulse noise
and key clicks.
For SSB Operation:
Use the noise limiter as noise conditions dictate.
GENERAL COVERAGE OPERATION.
The Model SX-117 Receiver may be used
on most frequencies from 85 KC to 30.0 MC by
inserting the correct heterodyne crystals into
the auxiliary oscillator sockets. The frequencies,
whose use is not recommended, are 1600 KC,
1650 KC, 1700 KC and the 5.5-MC to 7.0-MC
range.
In the low frequency range (i. e., 85 KC to
3.0 MC), an external-tuned circuit (Model HA-I0)
should be connected between the antenna and the
LF INPUT jack (see figure 19).
For AM Operation:
NOTE
Use the noise limiter as noise conditions dictate. It will be noticed that
the noise limiter will introduce considerable distortion on a fully modulated AM Signal. Distortion may be
reduced by decreasing the RF GAIN
control setting.
In primary service areas of highpower broadcast stations, good results can be obtained by connecting
an antenna directly to the LF INPUT
jack.
The following chart contains the information needed to cover the 85-KC to 30-MC range:
Signal
Frequency
Crystal
Frequency
Crystal
Type
Crystal
Selector
& Socket
85 KC to 500 KC
6.5 MC
CR-18/U
1 or 2
500 KC to 1.0 MC
7.0 MC
CR-18/U
1 or 2
1.0 MC to 1.5 MC
7.5 MC
CR-18/U
1 or 2
1.5 MC to 2.0 MC
8.0 MC
CR-18/U
1 or 2
2.0 MC to 2.5 MC
8.5 MC
CR-18/U
1 or 2
2.5 MC to 3.0 Me
9.0 MC
CR-18/U
1 or 2
3.0 MC to 3.5 MC
9.5 MC
CR-18/U
1 or 2
3.5 MC to 4.0 MC
--
--
Normal
4.0 MC to 4.5 MC
10.5 MC
CR-18/U
1 or 2
4.5 MC to 5.0 MC
11.0 MC
CR-18/U
5.0 MC to 5.5 MC
11.5 MC
7.0 MC to 7.5 MC
Preselector
Calibration
Dial
Scale
Band
Selector
Black
LF
Red
LF
Black
LF
Red
LF
Black
LF
Red
LF
Black
3.5
Red
3.5
7
Black
3.5
1 or 2
2
Red
7.0
CR-18/U
1 or 2
3
Black
7.0
--
--
Normal
@:2]
Black
7.0
7.5 MC to 8.0 MC
14.0 MC
CR-18/U
1 or 2
7
Red
7.0
8.0 MC to 8.5 MC
14.5 MC
CR-18/U
1 or 2
7-1/2
Black
7.0
8.5 MC to 9.0 MC
15.0 MC
CR-18/U
1 or 2
8
Red
7.0
9.0 MC to 9.5 MC
15.5 MC
CR-18/U
1 or 2
8-1/2
Black
7.0
9.5 MC to 10 MC
--
--
Normal
9
Red
7.0
10 MC to 10.5 MC
16.5 MC
CR-18/U
1 or 2
9-1/2
Black
7.0
10.5 MC to 11 MC
17.0 MC
CR-18/U
1 or 2
4-1/2
Red
14
11 MC to 11.5 MC
17.5 MC
CR-18/U
1 or 2
5
Black
14
11.5 MC to 12 MC
18.0 MC
CR-18/U
1 or 2
5-1/2
Red
14
12 MC to 12.5 MC
18.5 MC
CR-18/U
1 or 2
6
Black
14
-12-
Use
Model
HA-I0
1
§]
Crystal
Selector
& Socket
Dial
Scale
Band
Selector
6-1/2
Red
14
1 or 2
7
Black
14
CR-18/U
1 or 2
7
Red
14
--
--
Normal
~
Black
14
14.5 MC to 15 MC
21.0 MC
CR-23/U
3 or 4
7-1/2
Red
14
15 MC to 15.5 MC
21.5 MC
CR-23/U
e or 4
7-1/2
Black
14
15.5 MC to 16 MC
22.0 MC
CR-23/U
3 or 4
8
Red
14
16 MC to 16.5 MC
22.5 MC
CR-23/U
3 or 4
8
Black
14
16.5 MC to 17 MC
23.0 MC
CR-23/U
3 or 4
8-1/2
Red
14
17M C to 17.5 M C
23.5 MC
CR-23/U
3 or 4
8-1/2
Black
14
17.5 M C to 18 M C
24.0 MC
CR-23/U
3 or 4
9
Red
14
18 MC to 18.5 MC
24.5 MC
CR-23/U
3 or 4
7
Black
21
18.5 MC to 19 MC
25.0 MC
CR-23/U
3 or 4
7
Red
21
19 MC to 19.5 MC
25.5 MC
CR-23/U
3 or 4
7-1/2
Black
21
19.5 MC to 20 MC
26.0 MC
CR-23/U
3 or 4
7-1/2
Red
21
20 MC to 20.5 MC
26.5 MC
CR-23/U
3 or 4
8
Black
21
20.5 MC to 21 MC
27.0 MC
CR-23/U
3 or 4
8
Red
21
21 MC to 21.5 MC
--
--
Normal
~
Black
21
21.5 MC to 22 MC
28.0 MC
CR-23/U
3 or 4
8-1/2
Red
21
22 MC to 22.5 MC
28.5 MC
CR-23/U
3 or 4
8-1/2
Black
21
22.5 MC to 23 MC
29.0 MC
CR-23/U
3 or 4
9
Red
21
23 MC to 23.5 MC
29.5 MC
CR-23/U
3 or 4
9
Black
21
23.5 MC to 24 MC
30.0 MC
CR-23/U
3 or 4
9-1/2
Red
21
24 MC to 24.5 MC
30.5 MC
CR-23/U
3 or 4
9-1/2
Black
21
24.5 MC to 25 MC
31.0 MC
CR-23/U
3 or 4
7-1/2
Red
28.0
25 MC to 25.5 MC
31.5 MC
CR-23/U
3 or 4
8
Black
28.0
25.5 MC to 26 MC
32.0 MC
CR-23/U
3 or 4
8
Red
28.0
26 MC to 26.5 MC
32.5 MC
CR-23/U
3 or 4
8-1/2
Black
28.0
26.5 MC to 27 MC
33.0 MC
CR-23/U
3 or 4
8-1/2
Red
28.0
27 MC to 27.5 MC
33.5 MC
CR-23/U
3 or 4
9
Black
28.0
27.5 MC to 28 MC
34.0 MC
CR-23/U
3 or 4
9
Red
28.0
28 MC to 28.5 MC
--
--
Normal
[!Q]
Black
28.0
28.5 MC to 29 MC
--
--
Normal
[Q]
Red
28.5
29 MC to 29.5 MC
--
--
Normal
[Q]
Black
29.0
29.5 MC to 30 MC
--
--
Normal
[!Q]
Red
29.5
Signal
Frequency
Crystal
Frequency
Crystal
Type
12.5 MC to 13 MC
19.0 MC
CR-18/U
1 or 2
13 MC to 13.5 MC
19.5 MC
CR-18/U
13.5 MC to 14 MC
20.0 MC
14 MC to 14.5 MC
Preselector
Calibration
- f - - - - - - -1---
-13-
3.
Crystals for General Coverage Operation
should be ordered through an authorized Hallicrafters Dealer, allowing reasonable time for
delivery. Because of the large quantity of crystal
required to satisfy varied user requirements,
neither The Hallicrafters Company nor its
dealers will normally stock crystals for general
coverage service.
is 20 MC or less, specify type CR18/U and insert in auxiliary oscillator
crystal socket 1 or 2.
4.
NOTE
Those crystals which are shipped with
the Model SX-117 Receiver and the additional 10-meter and WWV crystals
are available at The Hallicrafters
Company. See the Service Repair
Parts List for part numbers of these
crystals.
The VFO (variable frequency oscillator)
may be used as a crystal-controlled oscillator
for fixed-frequency operation.
2.
Add 6.15 megacycles (IF frequency) to
the desired signal frequency. This will
determine the heterodyning crystal
frequency.
The PRESELECTOR calibration and
BAND SELECTOR setting may be determined from the general-coverage
chart (paragraph 5-7).
6.
The VFO dial should be set at approximately 375. Slight frequency warping
may be achieved by moving the dial
slightly from this point.
Example 2 - The desired signal frequency is
18.4 MC; the heterodyning crystal frequency is
18.4 MC + 6.15 MC = 24.55MC. From the general
coverage chart, it can be determined that, for a
signal frequency of 18.4 MC, the PRESELECTOR
should be set at 7 and the BAND SELECTOR at
21. The correct crystal would be a 24.55-MC
type CR-23/U crystal inserted in either crystal
socket 3 or 4.
This may be accomplished as follows:
Insert a 4.5-MCtypeCR-18/Ucrystal
in the VFO crystal socket, SOL
5.
Example 1 - The desired signal frequency is
12.950 MC; the heterodyning crystal frequency is
12.950 MC + 6.15 MC =19.100 MC. From the general-coverage chart, it can be determined that,
for a signal frequency of 12.950 MC, the PRESELECTOR should be set at 6 1/2 and the BAND
SELECTOR should be at 14. The correct crystal
would be a 19.100-MC type CR-18/U crystal inserted in either crystal socket 1 or 2.
USE· OF VFO AS CRYSTAL-LOCKED
OSCILLATOR.
1.
If the heterodyning crystal frequency
is more than 20 MC, specify type
CR-23/U and insert in auxiliary oscillator crystal socket 3 or 4.
Substitution of crystal types other than
specified should be avoided. Proper operation
and frequency correlation is dependentonprecise
characteristics of the CR-18/U and CR-23/U
types as listed.
5-8.
If the heterodyning crystal frequency
SECTION VI
ALIGNMENT
6-1.
GENERAL.
Alignment should not be attempted until all
other possible causes of faulty operation have been
exhausted.
Vacuum tube voltmeter (VTVM).
3.
Output meter (or AC scale of VTVM).
If a VTVM is used, connect it to terminals 500 and
G and terminate the output with a 500-ohm, 2-watt,
dummy load.
NOTE
4.
Do not make any adjustments unless
the operation of this receiver is fully
understood and adequate test equipment is available.
6-2.
2.
9.5-MC and 18-MC type CR-18/U cry-
stals.
5.
Alignment tool, such as GENERAL
CEMENT #8606, and a small screwdriver.
6-3.
TEST EQUIPMENT REQUIRED.
INITIAL CONTROL SETTINGS.
BAND SELECTOR. As indicated in chart.
1.
Signal generator with 50-KC to 30-MC
coverage, a calibrated output level meter, and a
50-ohm termination.
AUDIO AND RF..
GAIN
-14-
10 (maximum).
L7
L2
L10B VI
V2
LIIB L13B L12B
L6 L5 L10A 6DC6 6EAS TIO Ll4 LilA L13A L12A CII7
T6
ANTENNA
V9
6BA6
T5
MIXER
:n
,J..,2'e--T_-'c1-,
'+'
V2A
112 6EAS
VI
6 DC6
R F AMPLIFER
C I ; O l L1A
620
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OSCILLATOR
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CR4
Figure 20.
Schematic Diagram, Moclel SX-117 Receiver.
-
VI3
4
1
+---"""'R"7"'8------'
R77
12K
fr-4--+-~
6.3VAC
0-----,
FIRST
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CI5C
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2.2
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ALL CAPACITORS ARE IN UF
4J
4
51
C 1178
R89
33
2W
80
250Y
• CII7C
80
250V
R91
350
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REC
STBY
SERVICE REPAIR PARTS LIST
MODEL SX-117
Schematic
Symbol
Description
Hallicrafters
Part Number
Schematic
Symbol
CAPACITORS
CI
C2
C3
C4,11
C5,7,8,9,
12,13,17,
18,19,24,
25,26,27,
29,30,31,
44,54,124
C6,10
6201111 F, 5%, 300V, Plastic
Mica
751111 F, 5%, 300V, Plastic
Mica
Variable, PRESELECTOR
470 I1I1F, 5%, 300V, Plastic
Mica
O,OII1F, +80%, -20%, 500V,
Ceramic Disc
481-162621
C83
481-162750
C88
048-000534
481-162471
C89
047-100224
C98
CI07
481-162161
CI12
047-100242
C113,114
CI17A,B,
&C
C11B
CI19
048-000533
481-132150
C21,62,
65,87,95,
103,105
C22
C23
C28,72,91,
115,116,
120,122,123
C32,33
C34
C35,36,52,
57,75,80,
81,86,92,
96,97
C38
C39
C40
C41,42
C43
r45
C4B
C48
C49
C51
C53,61
C55,102,
104
C58
C59
C66,67,76,
77
C68,78
C69,84,85
C70,71
C79,93,94
561111 F, 5%, 300V, Plastic
Mica
1001111 F, 5%, 300V, Plastic
Mica
481-162560
681111F, 5%, 300V, Plastic
481-162680
Mica
471111 F, 5%, 300V, Plastic
Mica
0,111 F, +80%, -20%, 50V,
r:eramic Disc
471111 F, 10%, 500V, N2200,
Ceramic Tubular
1501111 F, 5%, 300V, Plastic
Mica
O,OOII1F, 20%, 500V,
Ceramic Disc
481-162101
481-152470
04'7-001146
479-026470
481-162151
047-100503
RI,47
R2,77
R3,12,22,
45,46,52,62
R4,10,13,
17,23,61
R5,8,58,92
R6,14,24,50
72,73,83
R7,33
R9
R11 ,20
RI5,85,87
R16,53
RI8 ,30,38,
42,56,63
RI9
R21
Variable, Trimmer, CAL
RESET
12 1111 F, 10%, N750, Ceramic
Tubular
51 1111 F, 2%, 300V, Plastic
Mica
10001111 F, 2%, 300V, Plastic
Mica
241111 F, 2%, 300V, Plastic
Mica
18 I1I1F, 2%, 300V, Plastic
Mica
5,611I1F, 2%, 300V, Plastic
Mica
30 I1I1F, 2%, 300V, Plastic
Mica
7,5 ill1F, 2%, 300V, Plastic
Mica
221111 F, 2%, 300V, Plastic
Mica
4.7 1111 F, 5%, 300V, Plastic
Mica
22 /lI1F, 5%, 300V, Plastic
Mica
201111 F, 5%, 300V, Plastic
Mica
1201111 F, 5%, 300V, Plastic
Mica
390/111 F, 5%, 300V, Plastic
Mica
3.3 !J./J. F, 10%, Gimmick
2201111 F, 5%, 300V, Plastic
Mica
75001111 F, 5%, 500V, Silver
Mica
0,002 II F, SOOV, Ceramic
Disc
Schematic
Symbols
044-000565
R25
491-006120-95
R26,27
R28
R29,68,ilO
R31,39,48,
64,65,74
R32,35,37,
40
R34,43
R36,41,49,
51,81,82
R44,70
R54
R55
481-151510
481-261102
481-151240
481-131180
481-131056
481-151300
481-162391
R57
R59
R60
R66
R67,76
R69
R71
R75
R78
R79
R80
R84,86
R88
047-200403-05
481-162221
R89
R91
481-131075
481-151220
481-132047
481-152220
481-152200
481-162121
2000 J.111 F, 5%, 300V, Plastic
Mica
1000/1/1 F, 5%, 300V, Plastic
Mica
25 ,/1 F, 25 V, Electrolytic
0,4711 F, 10%, 200V, Paper
Tubular
4700 11ll F, 5%, 400V, Paper
Tubular
0,01 it F, 5%, 400V, Paper
Tubular
0,005I1F, GMV, 500V,
Ceramic Disc
0,01 )l F, 1400V, Ceramic
Disc
60 11 F, 250V; 2 x 80 11 F,
250V, Electrolytic
2.2 /-L{.1 F, 10%, Gimmick
0,111 F, 10%, 400V, Paper
Tubular
*
Schematic
Symbols
Description
Hallicrafters
Part Number
SWITCHES
481-262202
LIA&B
L2,7
Coil, 6-MC Trap
Coil, Shunt (Antenna and
Mixer)
050-000877
051-003496
SI
481-262102
L3,8
Coil, 15-Meter Series
(Antenna and MIxer)
051-003494
S2
S3
L4,9
Coil, 20-Meter Series
(Antenna and Mixer)
Coil, Antenna
Coil, Mixer
Coil, Oscillator (10-1 and
and 80 Meters)
Coil, Oscillator (10-2 and
and 40 Meters)
Coil, Oscillator (10-3 and
and 15 Meters)
Coil, Oscillator (10-4 and
and 20 Meters)
Coil, Oscillator (WWV)
Coil, RF Choke (22 UH)
Coil, VFO
Coil, RF Choke (I MH)
Coil, Peaking
Coil, RF Choke (0,7 MH)
Coil, RF Choke (2.5 MH)
Coil, T-NOTCH (Bridge)
Coil, BFO
Coil, Warping (Crystal
Oscillator)
Transformer, Variable IF
(6,0 MC to 6.5 MC)
Transformer, IF (1650 KC)
Transformer, IF (50.75 KC)
Transformer, Output
Transformer, Power
051-003495
045-000883
046-001302-04
046-001312-03
L5
L6
LlOA&B
046-0013Ib-03
L11A&B
047-100168
LI2A&B
047-001309
LI3A&B
045-000884
047-200403-04
046-001329-04
Ll4
L15
Ll6
Ll7
Ll8
LI9,25,26
L20
L21
L22
L23,24
451-252474
451-252181
451-252223
1500 ohms
451-252152
100 ohms
lOOK ohms
451-252101
451-252104
1000 ohms
330K ohms
150 ohms
470 ohms
22K ohms, 1 watt
1 megohm
451-252102
451-252334
451-252151
451-252471
451-352223
451-252105
Variable, 2 megohms, 30%,
1/4 watt, Factory Gain
Variable, 400 ohms, 2 watts,
Meter Zero
Variable, 10K ohms, 20%,
I watt, RF GAIN
270 ohms
47 ohms
10K ohms
220K ohms
025-001957
VI
025-002121
V2
451-252271
451-252470
451-252103
451-252224
1200 ohms
451-252122
47K ohms
4700 ohms
451-252473
451-252472
TI,2
T3',4
T5,6,7,8
T9
TI0
451-252332
451-252393
451-252274
451-252394
451-252684
451-252153
451-252683
451-252106
451-252123
451-352121
451-352470
451-252221
025-002119
451-652330
453-062351
All RESISTORS are carbon type, 1/2 watt, 10%
unless otherwise st"i.ed.
S4
S5
051-003488
051-003491
051-003490
051-003489
053-000659
051-003509
053-000580
051-003497
05' 000530
053-000335
051-202270
054-000059
051-003500
YI
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
YIO&l1
YI2,13,
14,15
050-000869
050-000788
050-200735
055-000449
052-000989
V3
V4
V6
V7
V8
V9
VIO
V11
VI2
VI3
VI4
CRI,2
CR3,4
Electron Tube, type 6DC6;
RF Amplifier
Electron Tube, type 6EA8;
Fir st Mixer, Cathode
Follower
Electron Tube, type 12AT7;
Amateur-Band Crystal
Oscillator
Electron Tube, type 6BA6;
6-MC to 6.5-MC IF
Amplifier
Electron Tube, type 6BE6;
Second Mixer
Electron Tube, type 6EAB;
VFO, Cathode Follower
Electron Tube, type 6DC6;
1650-KC IF Amplifier
Electron Tube, type 6EA8;
Third Mixer, SSB-Switching
Crystal Oscillator
Electron Tube, type 6BA6;
50, 75-KC IF Amplifier
Electron Tube, type 6BNB;
AM Detector, AVC
Amplifier, AVe Rectifier
Electron Tube, type 6BE6;
Product Detector, BFO
Electron Tube, type 6GW8;
First Audio Amplifier,
Audio Output
Electron Tube, type 6EAB;
Auxiliary Crystal Oscillator, Cathode Follower
(Not Supplied)
Electron Tube, type 6AU6;
See Repair Parts List for
100-KC Crystal Calibrator
Diode, Type HD 6225
Diode, Rectifier, Silicon
Rotary, Wafer J BAND
SELECTOR
Rotary, Wafer, NL- CAL
Rotary J Wafer J CRYSTAL
SELECTOR
Rotary, Wafer,
SELECTIVITY
Rotary, Wafer, FUNCTION
(Inc, ON/OFF)
060-002523
060-002528
060-002525
060-002511
060-002510
CRYSTALS
10-4 Meter Band, 36,000 MC
10-3 Meter Band, 35,500 MC
10-2 Meter Band, 35,000 MC
10-1 Meter Band, 34,500 MC
15-Meter Band, 27,500 MC
20-Meter Band, 20,500 MC
40-Meter Band, 13,500 MC
80-Meter Band, 10.000 MC
WWV, 16,000 MC
1600 KC and 1700 KC,
Matched Pair
General Coverage Crystals
(Not Supplied)
019-002886
019-002885
019-002884
019-002883
019-002882
019-002881
019-002880
019-002879
019-002965
019-002961
----------
CONNECTORS AND SOCKETS
JI
J2
J3
J4
V5
451-252331
451-252822
025-201716
051-003498
051-003499
051-003487
ELECTRON TUBES AND DIODE,q
025-002120
470-422752
047-100395
Part Number
COILS AND TRANSFORMERS
470K ohms
180 ohms
22K ohms
330 ohms
8200 ohms
Variable, 5000 ohms, 20%,
1/4 watt, NOTCH DEPTH
3300 ohms
39K ohms
270K ohms
390K ohms
680K ohms
15K ohms
68K ohms
10 megohms
12K ohms
120 ohms, I watt
47 ohms, 1 watt
220 ohms
Variable, 500K ohms, 20%,
1/8 watt, AF GAIN
33 ohms, 2 watts
350 ohms, 10 watts,
Wire Wound
Hallicrafters
Descripti()Jl
481-132100
RESISTORS'
Mica
C20
10 /ljll", 5%, 300V, Plastic
Mica
CI08,110
CI4,37,
47,50,56,
60,63,64,
73,74,82,
90,99,100,
101,106,121,125
CI5
Variable, TUNING
CI6
151111 F, 5%, 300V, Plastic
Part Number
CAPACITORS (CONT)
CI09,111
1601111 F, 5%, 300Y, Plastic
Mica
0,02 11 F, +80%, -20%, 500V,
Ceramic Disc
Hallicraiters
Description
J5
J6
SOl
Connector, LF Antenna
Connector, Antenna
Connector, lOO-KC
Crystal, 5-pin
Connector, Crystal
Oscillator Output
Connector, VFO Output
Connector, PHONES
Socket, VFO Crystal
036-100041
036-100041
006-100186
036-100041
036-100041
036-100002
006-100320
090-901328
090-901350
MISC E LLAl'IEOUS
090-900034
090-901112
090-901124
FI
090-901350
090-901328
090-901350
090-901112
090-001465
DSI
090-901124
090-001502
090-901350
---------019-002354
027-000306
XVl,4,5,
7,9,11
XV2,3,6,8,
10,12,13
Bracket, Meter
Clip, Coil Mounting
Clip, Spring
Core, Coil (Ll9,25)
Foot, Mounting
Front Panel
Fuse, 1 Ampere, 3AG,
Slow-Blow Type
Fuse Holder
Iron Core (L2,5,6,7)
Knob, PRESELECTOR
Knob, CAL RESET, OFFNL-CAL, and BFO
Knob, TUNING
Knob, RF GAIN, XTAL
SELECTOR, BAND
SELECTOR, FUNCTION,
AF GAIN, NOTCH FREQ,
and SELECTIVITY
Lamp, Pilot Light, No, 47
Line Cord
Lock, Line Cord
Plug, Phono (J~I
Shield, Pilot I,ighT
Socket, Crystal (YlO&l1)
Socket, Pilot Light
Socket, Tube, 7-pin
miniature
Socket, Tube, 9-pin
miniature
Switch Wafer, Antenna
Switch Wafer, Mixer
Terminal Board, Antenna
(5 Connection)
Window, Dial
067-010598
076-000986
076-100682
077-002158
016-201072
068-001309
039-100438
006-100451
077-100260
015-001752-01
015-001758
015-001759
015-001760
039-100004
087-100078
076-000397
010-100221
069-001758
006-200873
086-000626
006-001048
006-000913
062-000203
062-000204
088-002442
022-000696
094.903123C
1168
Printed in U.S.A.
Source Exif Data:
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