- Country
- United States of America (USA)
- Manufacturer / Brand
- Montgomery Ward & Co. (Wards, Airline); Chicago, IL
- Year
- 1932 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 47739
-
- Brand: Airline or Air-Line
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 8
- Main principle
- TRF without regeneration; 2 AF stage(s)
- Tuned circuits
- 4 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 117 - 25Hz Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: 2957X - Montgomery Ward & Co. Wards,
- Notes
- 25Hz model of 2957. Push-pull audio amplifier.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 3 = 1933 and before
- Mentioned in
- Rider's 3-16
- Other Models
-
Here you find 2288 models, 1453 with images and 1786 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Montgomery Ward & Co. (Wards, Airline); Chicago, IL