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930

930 ; Columbia Phonograph, (ID = 216543) R-Player
 
930 ; Columbia Phonograph, (ID = 707046) R-Player
 
930 ; Columbia Phonograph, (ID = 707047) R-Player
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930 ; Columbia Phonograph, (ID = 216543) R-Player
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: 1930 ?? Category: Sound/Video Recorder and/or Player
Valves / Tubes 4: 27 45 45 80
Main principle Audio-Amplification
Wave bands - without
Details Record Player (perh.Changer)
Power type and voltage Alternating Current supply (AC) / 100-110; 110-120 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: 930 - Columbia Phonograph, American
Notes Push-pull af output stage.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Literature/Schematics (1) 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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