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4D ; Detrola; Detroit MI (ID = 289012) Radio
4D ; Detrola; Detroit MI (ID = 426437) Radio 4D ; Detrola; Detroit MI (ID = 426440) Radio
4D ; Detrola; Detroit MI (ID = 351453) Radio 4D ; Detrola; Detroit MI (ID = 426438) Radio
4D ; Detrola; Detroit MI (ID = 426439) Radio 4D ; Detrola; Detroit MI (ID = 426441) Radio
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4D ; Detrola; Detroit MI (ID = 426437) Radio
Detrola; Detroit MI: 4D [Radio] ID = 426437 524x700
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For model 4D, Detrola; Detroit (MI)
Country:  United States of America (USA)
Manufacturer / Brand:  Detrola; Detroit (MI)
Year: 1934 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: 78 77 42 80
Main principle TRF without regeneration; 1 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Wave Bands given in the notes.
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: 4D - Detrola; Detroit MI
Material Wooden case
Shape Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
Dimensions (WHD) 260 x 310 x 160 mm / 10.2 x 12.2 x 6.3 inch
Notes Riders shows 2 bands (BC and Police?), Bunis/Slusser says BC only.
Net weight (2.2 lb = 1 kg) 4 kg / 8 lb 13 oz (8.811 lb)
External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios (7th Edition)
Circuit diagram reference Rider's Perpetual, Volume 5 = ca. 1934 and before
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965

All listed radios etc. from Detrola; Detroit (MI)
Here you find 325 models, 186 with images and 282 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.