970 DC Series
Stewart Warner Corp.; Chicago (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Stewart Warner Corp.; Chicago (IL)
- Year
- 1929 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 136217
-
- Brand: Ferrodyne
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
- Tuned circuits
- 4 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Direct Current supply (DC) / 110 Volt
- Loudspeaker
- Permanent or electro-dynamic (moving coil), system not known yet.
- Material
- Metal case
- from Radiomuseum.org
- Model: 970 DC Series - Stewart Warner Corp.; Chicago
- Shape
- Chassis only or for «building in»
- Notes
- 4-gang condenser; push-pull af output stage.
- Circuit diagram reference
- Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
- Author
- Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.
- Other Models
-
Here you find 2115 models, 396 with images and 1972 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Stewart Warner Corp.; Chicago (IL)