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12; Zenith Radio Corp.; (ID = 218782) Radio
12; Zenith Radio Corp.; (ID = 218215) Radio 12; Zenith Radio Corp.; (ID = 218216) Radio
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12; Zenith Radio Corp.; (ID = 218215) Radio
Zenith Radio Corp.;: 12 [Radio] ID = 218215 414x286
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For model 12, Zenith Radio Corp.; Chicago, IL:
Model 12 (Switch to the right of the dial is not original)
Country:  United States of America (USA)
Manufacturer / Brand:  Zenith Radio Corp.; Chicago, IL
alternative name
Chicago Radio Lab
Year: 1927 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: UX201A UX201A UX201A UX201A UX112A UX171A
Main principle TRF without regeneration
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Storage and/or dry batteries
Loudspeaker - For headphones or amp.
Power out
from Model: 12 - Zenith Radio Corp.; Chicago,
Material Wooden case
Shape Tablemodel, slant panel.
Notes same chassis in model #11 and #14
External source of data Ernst Erb
Source of data The Radio Collector's Directory and Price Guide 1921 - 1965
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in Collector's Guide to Antique Radios 4. Edition

All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4264 models, 3890 with images and 3381 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.