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648 ; Gamble-Skogmo, Inc.; (ID = 370737) Radio
648 ; Gamble-Skogmo, Inc.; (ID = 370738) Radio
648 ; Gamble-Skogmo, Inc.; (ID = 2602254) Radio 648 ; Gamble-Skogmo, Inc.; (ID = 2602255) Radio
648 ; Gamble-Skogmo, Inc.; (ID = 2602256) Radio
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648 ; Gamble-Skogmo, Inc.; (ID = 2602254) Radio
Gamble-Skogmo, Inc.;: 648 [Radio] ID = 2602254 1400x927
Select picture or schematic to display from thumbnails on the right and click for download.
For model 648, Gamble-Skogmo, Inc.; Minneapolis, MN:
This cabinet Illustrates how NOT to pick up a 1930's open back radio by lifting it one handed in the top middle. The weight of the chassis might cause it to break.
Country:  United States of America (USA)
Manufacturer / Brand:  Gamble-Skogmo, Inc.; Minneapolis, MN
Year: 1938 ?? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 6A7 6D6 75 76 6AC5G 80
Main principle Superheterodyne (common); ZF/IF 455 kHz
Wave bands Broadcast only (MW).
Power type and voltage Alternating Current supply (AC) / 119 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: 648 - Gamble-Skogmo, Inc.;
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 9 = 1938 and before

All listed radios etc. from Gamble-Skogmo, Inc.; Minneapolis, MN
Here you find 658 models, 290 with images and 600 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.