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722; Zenith Radio Corp.; (ID = 342065) Radio
722; Zenith Radio Corp.; (ID = 567743) Radio 722; Zenith Radio Corp.; (ID = 156187) Radio
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722; Zenith Radio Corp.; (ID = 567743) Radio
Zenith Radio Corp.;: 722 [Radio] ID = 567743 472x510
Select picture or schematic to display from thumbnails on the right and click for download.
For model 722, Zenith Radio Corp.; Chicago, IL:
Zenith_722_Ebay seller dat-scwewy-wabbit!. Picture shows model 72. Model 722 use the same cabinet.
Country:  United States of America (USA)
Manufacturer / Brand:  Zenith Radio Corp.; Chicago, IL
alternative name
Chicago Radio Lab
Year: 1930/1931 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: 24 24 24 27 27 27 45 45 80
Main principle TRF without regeneration; Screengrid 1926-1935
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: 722 - Zenith Radio Corp.; Chicago,
Material Wooden case
Shape Console, Lowboy (legs < 50 %).
Notes for 25cycle mains;
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in Zenith Radio The Early Years 1919-1935

All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4275 models, 3894 with images and 3389 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.