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678 IssueA

678 ; Gamble-Skogmo, Inc.; (ID = 53906) Car Radio
678 ; Gamble-Skogmo, Inc.; (ID = 371489) Car Radio
678 ; Gamble-Skogmo, Inc.; (ID = 371490) Car Radio
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678 ; Gamble-Skogmo, Inc.; (ID = 53906) Car Radio
Select picture or schematic to display from thumbnails on the right and click for download.
Country:  United States of America (USA)
Manufacturer / Brand:  Gamble-Skogmo, Inc.; Minneapolis, MN
Year: 1939 Category: Car Radio, perhaps also + sound player/recorder
Valves / Tubes 6: 6K7 6A8 6SK7 6Q7 6J5 6N7
Main principle Superhet with RF-stage; ZF/IF 465 kHz
Wave bands Broadcast only (MW).
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 6.3 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
Power out
from Model: 678 [IssueA] - Gamble-Skogmo, Inc.;
Notes Sync. vibrator for +B.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 11 = ca. 1940 and before

All listed radios etc. from Gamble-Skogmo, Inc.; Minneapolis, MN
Here you find 651 models, 289 with images and 594 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.