- Country
- United States of America (USA)
- Manufacturer / Brand
- Columbia Phonograph, American / Volta Graphophone Company; USA
- Year
- 1932 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 35643
-
- alternative name: American Graphophone || Columbia Recording
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- 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).
- Power type and voltage
- Storage and/or dry batteries / 2 & 135 & 22,5 Volt
- Loudspeaker
- Magnetic loudspeaker (reed) generic.
- 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
- 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