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7-A ; Gilfillan Bros.Inc.; (ID = 702627) Car Radio
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7-A ; Gilfillan Bros.Inc.; (ID = 702627) Car Radio
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Country:  United States of America (USA)
Manufacturer / Brand:  Gilfillan Bros.Inc.; Los Angeles (CA)
Year: 1935 ? Category: Car Radio, perhaps also + sound player/recorder
Valves / Tubes 7: 77 77 78 85 76 42 84
Main principle Superhet with RF-stage; ZF/IF 175 kHz
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: 7-A - Gilfillan Bros.Inc.; Los
Notes Vibrator for +B.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 6 = 1935 and before

All listed radios etc. from Gilfillan Bros.Inc.; Los Angeles (CA)
Here you find 184 models, 111 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.