TX 70A

TX-10B TX-10B

TX-LM2 TX-LM2

TX-1A TX-1A

User Manual: TX-70A

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TX™ SERIES
TX-10B Bridging Input Transformer
• Used to add transformer
isolation to any line-level RDL
product input
• Frequency response: 20 Hz to
20 kHz (+/- 0.5 dB)
• THD: , 0.05% (1 kHz)
• 10 kΩ input bridges any audio
line
• Balanced input and output
TX-1A Adjustable Line Transformer
• Provides transformer isolation
between balanced and
unbalanced line inputs
• Level trimpot adjusts output 4 to
24 dB below
• Input level may be 10 kΩ
bridging or 600 Ω terminated
• Frequency response: 20 Hz to
20 kHz (+/- 0.5 dB)
• THD+N: < 0.05 % (1 kHz)
SPECIFICATIONS:
Width: 1.20 in. 3.00 cm
Length: 3.00 in. 7.60 cm
Height: 1.40 in. 3.60 cm
TX-LM2 Line Matching Transformer
• Matches balanced 600 Ω
phone or other line into mic or
line input
• Dual outputs: Unbalanced line
level or balanced mic level
• Frequency response: 20 Hz to
20 kHz (+/- 0.5 dB)
• THD: < 0.05% (1 kHz)
TX-70A 100/70/25 Volt Input Interface
• Matches a 100, 70 or 25 volt
speaker line to any unbalanced
line-level audio input
• Trimpot adjusts output level for
various input voltage/power
levels
• Frequency Response: 20 Hz to
20 kHz (+/- 0.5 dB)
• THD: < 0.05% (1 kHz)
RDL • 659 N. 6th St. • Prescott, AZ., USA 86301 • (928) 443-9391 • FAX (928) 443-9392 • www.rdlnet.com
TX™ SERIES
EN55103-1 E1-E5; EN55103-2 E1-E4
Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
891-0068H
Installation/Operation
ADJUST LEVEL
INPUT FROM
BALANCED LINE
OUTPUT TO
ELECTRONIC-BALANCED
EQUIPMENT INPUT
CONNECT IF REQUIRED
CONNECT IF REQUIRED
EQUIPMENT INPUT
UNBALANCED
OUTPUT TO
BALANCED LINE
INPUT FROM
(BRIDGING)
INPUT FROM
BALANCED LINE
OUTPUT TO
UNBALANCED
EQUIPMENT INPUT
CONNECT IF REQUIRED
(600 OHM LINE)
(600 OHM LINE)
BALANCED LINE
INPUT FROM
CONNECT IF REQUIRED
CONNECT IF NEEDED TO REDUCE HUM
FROM LONG LINE
OUTPUT TO
LINE-LEVEL UNBALANCED
EQUIPMENT INPUT
FROM LONG LINE
CONNECT IF NEEDED TO REDUCE HUM
CONNECT IF REQUIRED
INPUT FROM
BALANCED LINE
(600 OHM LINE)
CONNECT EITHER MIC OR LINE OUTPUT, NOT BOTH
NOTE THAT INPUT CENTERTAP IS NOT INTERNALLY CONNECTED TO GROUND
CONNECT IF REQUIRED
EQUIPMENT INPUT
MIC-LEVEL BALANCED
OUTPUT TO
CONSTANT VOLTAGE LINE
OUTPUT TO
UNBALANCED
EQUIPMENT INPUT
ADJUST LEVEL
SET TO 25V, 70V, OR
FULLY COUNTER-CLOCKWISE
FOR 100 V SYSTEM
TRIM LEVEL AS NEEDED
TX-10B TX-1A
TX-LM2TX-70A
ADJUSTABLE LINE TRANSFORMERBRIDGING INPUT TRANSFORMER
25/70/100 VOLT INTERFACE LINE MATCHING TRANSFORMER
OHM
600
+
+
-
+
-
+
CT
-
+
+
-
+
CT
-
+
+
OHM
600
+
+
-

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