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Coronado 31-BT (31-B)

Coronado 31-BT ; Gamble-Skogmo, Inc.; (ID = 363455) Radio
Coronado 31-BT ; Gamble-Skogmo, Inc.; (ID = 363457) Radio
Coronado 31-BT ; Gamble-Skogmo, Inc.; (ID = 1600136) Radio
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Coronado 31-BT ; Gamble-Skogmo, Inc.; (ID = 1600136) Radio
Gamble-Skogmo, Inc.;: Coronado 31-BT [Radio] ID = 1600136 933x1225
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For model Coronado 31-BT (31-B), Gamble-Skogmo, Inc.; Minneapolis, MN:
Image courtesy of Mark V. Stein for use only. Cathedral and Tombstone Radios.
Country:  United States of America (USA)
Manufacturer / Brand:  Gamble-Skogmo, Inc.; Minneapolis, MN
Year: 1936 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 1C6 34 30 34 30 19
Main principle Superheterodyne (common); ZF/IF 456 kHz
Wave bands Broadcast plus 2 Short Wave bands.
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
Loudspeaker Magnetic loudspeaker (reed) generic.
Power out
from Model: Coronado 31-BT - Gamble-Skogmo, Inc.;
Material Wooden case
Shape Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

Stein "Cathedral & Tombstone Radios" lists 2 bands for this model.

External source of data Ernst Erb
Source of data Machine Age to Jet Age II
Circuit diagram reference Rider's Perpetual, Volume 7 = 1936 and before
Mentioned in Cathedral & Tombstone Radios (page 78.)

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.