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KK-7A Power supply

Country:  United States of America (USA)
Manufacturer / Brand:  RCA (RCA Victor Co. Inc.); New York (NY)
alternative name
RCA Manufacturing || Victor Talking Machine
Year: 1939 Category: Power supply/conditioner or battery or charger 
Valves / Tubes 1: 2V3G
Power type and voltage Alternating Current supply (AC) / 115 Volt
Power out
from Model: KK-7A Power supply - RCA RCA Victor Co. Inc.; New
Material Metal case
Shape Chassis only or for «building in»
Notes High voltage power supply for TV-chassis KC-4A in TV combination set TRK-9.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 10 = 1939 and before

All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)
Here you find 4928 models, 2898 with images and 4002 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.