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7S28 Ch= 5704

7S28 Ch= 5704; Zenith Radio Corp.; (ID = 20953) Radio
7S28 Ch= 5704; Zenith Radio Corp.; (ID = 2370614) Radio 7S28 Ch= 5704; Zenith Radio Corp.; (ID = 148397) Radio
7S28 Ch= 5704; Zenith Radio Corp.; (ID = 148396) Radio 7S28 Ch= 5704; Zenith Radio Corp.; (ID = 148395) Radio
7S28 Ch= 5704; Zenith Radio Corp.; (ID = 148398) Radio 7S28 Ch= 5704; Zenith Radio Corp.; (ID = 148399) Radio
7S28 Ch= 5704; Zenith Radio Corp.; (ID = 148400) Radio 7S28 Ch= 5704; Zenith Radio Corp.; (ID = 1507328) Radio
7S28 Ch= 5704; Zenith Radio Corp.; (ID = 2568441) Radio 7S28 Ch= 5704; Zenith Radio Corp.; (ID = 2568454) Radio
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7S28 Ch= 5704; Zenith Radio Corp.; (ID = 2370614) Radio
Zenith Radio Corp.;: 7S28 Ch= 5704 [Radio] ID = 2370614 665x758
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For model 7S28 Ch= 5704, Zenith Radio Corp.; Chicago, IL:
Copy from Ebay seller jbjohnj.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Zenith Radio Corp.; Chicago, IL
alternative name
 
Chicago Radio Lab
Year: 1936 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: 6K7 6A8 6K7 6H6 6K7 6F6 5Y3
Main principle Superhet with RF-stage; ZF/IF 456 kHz
Wave bands Broadcast plus more than 2 Short Wave bands.
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: 7S28 Ch= 5704 - Zenith Radio Corp.; Chicago,
Material Wooden case
Shape Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
Dimensions (WHD) 16.3 x 22 x 13 inch / 414 x 559 x 330 mm
Notes

The cabinet from model 7S28 is similar with models 7S28A, 7A28A and 7S28(Y) ebony.

Price in first year of sale 75.00 $
External source of data E. Erb 3-907007-36-0
Source of data Collector's Guide to Antique Radios 4. Edition
Circuit diagram reference Rider's Perpetual, Volume 7 = 1936 and before
Mentioned in Machine Age to Jet Age II (page 317.)
Literature/Schematics (1) Cathedral & Tombstone Radios (page 279.)


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.




  
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