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The Metropolitan 224D Vibro-Power

The Metropolitan 224D Vibro-Power ; United American (ID = 772965) Radio
 
The Metropolitan 224D Vibro-Power ; United American (ID = 772966) Radio
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The Metropolitan 224D Vibro-Power ; United American (ID = 772965) Radio
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Country:  United States of America (USA)
Manufacturer / Brand:  United American Bosch (Magneto Corporation); Springfield (MA)
alternative name
 
American Bosch Magneto
Brand
Essex
Year: 1932 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 239 237 239 239 239 71A 52 52
Conflicting model year with tube data.
The model date contradicts tube dates. [ 52 (1933)]
Main principle Superhet with RF-stage; ZF/IF 175 kHz
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Direct Current supply (DC) / 105-125 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: The Metropolitan 224D Vibro-Power - United American Bosch Magneto
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 9 = 1938 and before
Literature/Schematics (1) Riders 2-14, 9-1
Literature/Schematics (3) -- Original prospect or advert (Radio-Retailing, September 1932)


All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)
Here you find 412 models, 158 with images and 269 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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