- Country
- United States of America (USA)
- Manufacturer / Brand
- Operadio Corp.; St. Charles (IL)
- Year
- 1948 ?
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 232026
-
- alternative name: Operadio Mfg,
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 8
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC) / 110-120 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Metal case
- from Radiomuseum.org
- Model: 1A70-A - Operadio Corp.; St. Charles IL
- Shape
- Tablemodel, low profile (big size).
- Notes
-
AC Operated Audio Booster Amplifier with Power Supply
- Mentioned in
- Photofact Folder, Howard W. SAMS (Set 47 Folder 16)
- Author
- Model page created by Friedrich Weber † 12.09.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 66 models, 43 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Operadio Corp.; St. Charles (IL)