- Country
- United States of America (USA)
- Manufacturer / Brand
- Brunswick-Balke-Collender Co.
- Year
- 1931
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 34731
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 11
- Main principle
- Superhet with RF-stage; ZF/IF 175 kHz
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Alternating Current supply (AC) / 105-115; 115-125 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 25 - Brunswick-Balke-Collender Co.
- Shape
- Console, Highboy (legs > 50 %).
- Notes
- Riders schematic only displays 9 tubes, but there is the Shortwave Converter(100) which employs two 24. The tube complement stated in Radio Collectors Guide 1921-1932 is not correct (quoting 5 x type 54)!
- Price in first year of sale
- 225.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Circuit diagram reference
- Rider's Perpetual, Volume 3 = 1933 and before
- Literature/Schematics (1)
- Rider's Perpetual, Volume 2 = 1932 and before (2-12 for SW-Converter 100)
- Other Models
-
Here you find 101 models, 33 with images and 67 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Brunswick-Balke-Collender Co.