Voltage readings for receive card 1A3.

TM-11-5805-356-34-1 Terminal Telegraph TH-22/TG and Filter Assembly Electrical F-316/U Manual
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TM 11-5805-356-34-1

(9) Voltage readings for receive card 1A3.

(a) Terminate line terminals with 600-

ohm load.

(b) Operate switches as follows:

Switch

ON-OFF----------------ON

NORM-REC-SEND___NORM

4W-2W-TEL - - - - - - - - - - - - - . 4 W

MODE ONE-MODE TWO MODE ONE

NOTE

The following chart lists two voltages

for each transistor element. The top

voltage is measured with the controls

set as specified. The bottom voltage for

transistors Q1 through Q14 and Q16 is

obtained with the controls set as speci-

fied, the SEND jacks left disconnected,

and jumper wires connected between

line terminals E3 and E5, and between

b. Resistance Data. Resistance data for chassis

E4 and E6. The bottom voltage for

mounted components are provided by figure 3-1

transistors Q15 and Q17 through Q21 is

for those components mounted directly to the

obtained with 4W-2W-TEL switch op-

chassis, and by figure 3-2 for thoee components

erated to 2W and the RING switch op-

mounted on terminal board 1TB1.

erated.

c. Dc Resistance of Transformer and Inductor

Windings. The following chart lists the ohmic

resistance of transformer and inductor windings.

The chart provides the conditions imposed for

the measurement.