More SR-150 rigs were produced than any other SR series rigs. There were 7 production runs from 1960 – 1965. Documentation on production run 4 authorizes the purchase of parts and build of 250 units.

SR-150 REPAIR AND RESTORE MANUAL

SR-150 VFO QUICK ALIGNMENT

SR-150 6MHz IF ALT ALIGNMENT

MIC AUDIO FEEDTHROUGH IN RX

LOW POWER IN CW AND TUNE 

PRESELECTOR FLYING

RECEIVER STRONG SIGNAL DISTORTION

TRANSMITTER AUDIO FAULT ISOLATION

MODIFICATIONS AND ERRATA SHEET

PERFORMANCE SPECIFICATION

AGC/GAIN/SENS/FIGURE OF MERIT

ZERO SIGNAL AGC THRESHOLD

PA BIAS ADJUST

THE INFAMOUS C100