- Country
- United States of America (USA)
- Manufacturer / Brand
- Steinite Radio Co., Warwick Mfg.Co.; Atchinson
- Year
- 1930
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 59951
-
- Brand: Marvel
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- TRF without regeneration; 1 AF stage(s); Screengrid 1926-1935
- Tuned circuits
- 3 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 110 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: 425 Ch= 21 - Steinite Radio Co., Warwick
- Shape
- Tablemodel without push buttons, Mantel/Midget/Compact up to 14
- Notes
- One dial (primary tuning control knob) . Push-pull audio amplifier.
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Circuit diagram reference
- Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)
- Mentioned in
- The Radio Collector's Directory and Price Guide 1921 - 1965 (Rider's 2-4, 2-5)
- Other Models
-
Here you find 90 models, 26 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Steinite Radio Co., Warwick Mfg.Co.; Atchinson