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

CLEANING TUBE TYPE EQUIPMENT

BASIC THEORY OF ELECTRON TUBES

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 & SX S-METER CONSIDERATIONS

SR SERIES RECIEVER GAIN ANOMALY