- Country
- United States of America (USA)
- Manufacturer / Brand
- Brunswick-Balke-Collender Co.
- Year
- 1927
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 34797
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 3
- Number of Transistors
- Semiconductors
- 886A
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC) / 105-125 Volt
- Loudspeaker
- - This model requires external speaker(s).
- from Radiomuseum.org
- Model: RPA-4A - Brunswick-Balke-Collender Co.
- Shape
- Chassis only or for «building in»
- Notes
-
Ballst tube 886A.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
- 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.