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60 ; Gulbransen Co.; (ID = 665371) Radio
60 ; Gulbransen Co.; (ID = 665372) Radio
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60 ; Gulbransen Co.; (ID = 665371) Radio
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Country:  United States of America (USA)
Manufacturer / Brand:  Gulbransen Co.; Chicago
Year: 1930 ?? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 24 24 24 24 45 80
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
Tuned circuits 3 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Alternating Current supply (AC) / 110 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: 60 - Gulbransen Co.; Chicago
Notes 3-gang condenser.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

All listed radios etc. from Gulbransen Co.; Chicago
Here you find 64 models, 10 with images and 31 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.