HALLICRAFTERS SR-150

MIC AMPLIFIER

BALANCED MODULATOR

TRANSMITTER 1650 IF

TROUBLESHOOTING AND SIGNAL LEVEL GUIDE.

This document will provide a guide to troubleshooting the SR-150

transmitter front end. It starts at the microphone jack, proceeds

through the mic amplifier chain, through the balanced modulator and

to the output of the transmitter 1650 IF amp.

This guide and the signal levels are true only when the receiver is free

of faults and aligned properly.