- Country
- United States of America (USA)
- Manufacturer / Brand
- Columbia Phonograph, American / Volta Graphophone Company; USA
- Year
- 1931
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 35653
-
- alternative name: American Graphophone || Columbia Recording
- Number of Tubes
- 8
- Valves / Tubes
- Wave bands
- Broadcast only (MW).
- Details
- Record Player (perh.Changer)
- Power type and voltage
- Alternating Current supply (AC)
- Loudspeaker
- Permanent or electro-dynamic (moving coil), system not known yet.
- from Radiomuseum.org
- Model: 991 [new] - Columbia Phonograph, American
- Price in first year of sale
- 325.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Other Models
-
Here you find 117 models, 83 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