Random information and data that does not fit in one of the major categories.

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CLEANING TUBE TYPE EQUIPMENT

INTERMITTANT ROTARY SWITCHES

SR SERIES POWER SWITCH FAILURES

S-METER STANDARD

TRANSFORMER COLOR CODE STANDARDS

BASIC THEORY OF ELECTRON TUBES

SR SERIES BENCH TESTING HINT

12BY7A DRIVER TUBE

MATCHING SR SERIES TO LINEAR AMPS

TESTING RECEIVER GAIN

ATTENUATOR AND IMPEDANCE MATCHING

HALLICRAFTERS I.F. FREQUENCIES

S-119 LOW VOLUME HUM MOD

SR SERIES CABNET PAINT CODE

SR SERIES TUBE SUBSTITUTION

SR & HT SERIES MIC SELECTION

PERFECT MIC FOR SR SERIES

SR SERIES RECIEVER GAIN ANOMALY

VOX RELAY HT-32, HT-37, HT-44, SR-150, SR-400 AND SR-2000