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Amp 900

Country:  United States of America (USA)
Manufacturer / Brand:  Columbia Phonograph, American / Volta Graphophone Company; USA
alternative name
 
American Graphophone || Columbia Recording
Year: 1927 Category: Audio Amplifier or -mixer
Valves / Tubes 5:
Main principle Audio-Amplification
Details
Power type and voltage Alternating Current supply (AC)
Loudspeaker
Power out
from Radiomuseum.org Model: Amp 900 - Columbia Phonograph, American
Material Wooden case
Shape Console, Lowboy (legs < 50 %).
Price in first year of sale 475.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932


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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