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120-B

120-B ; Columbia Phonograph, (ID = 677953) Radio
 
120-B ; Columbia Phonograph, (ID = 677954) Radio
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120-B ; Columbia Phonograph, (ID = 677953) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Columbia Phonograph, American / Volta Graphophone Company; USA
alternative name
 
American Graphophone || Columbia Recording
Year: 1932 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 32 30 32 32 32 33
Main principle Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s); Screengrid 1926-1935
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries / 2 & 135 & 22,5 Volt
Loudspeaker Magnetic loudspeaker (reed) generic.
Power out
from Radiomuseum.org Model: 120-B - Columbia Phonograph, American
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 3 = 1933 and before


All listed radios etc. from Columbia Phonograph, American / Volta Graphophone Company; USA
Here you find 93 models, 58 with images and 34 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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