- Country
- United States of America (USA)
- Manufacturer / Brand
- Columbia Phonograph, American / Volta Graphophone Company; USA
- Year
- 1927
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 35645
-
- alternative name: American Graphophone || Columbia Recording
- Number of Tubes
- 5
- Valves / Tubes
- Main principle
- Audio-Amplification
- Power type and voltage
- Alternating Current supply (AC)
- Material
- Wooden case
- from Radiomuseum.org
- Model: Amp 900 - Columbia Phonograph, American
- 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
- Other Models
-
Here you find 103 models, 69 with images and 34 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Columbia Phonograph, American / Volta Graphophone Company; USA