30-Watt Portable Battery/Mains Amplifier BM40
BSR (Monarch); Great Britain
- Country
- Great Britain (UK)
- Manufacturer / Brand
- BSR (Monarch); Great Britain
- Year
- 1950 ?
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 357655
-
- Brand: Birmingham Sound Reproducers
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Line / Storage batteries (perhaps also batteries)
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 30 W (unknown quality)
- Material
- Metal case
- from Radiomuseum.org
- Model: 30-Watt Portable Battery/Mains Amplifier BM40 - BSR Monarch; Great Britain
- Shape
- Tablemodel, with any shape - general.
- Notes
-
A 30 Watt amplifier with these characteristics:
- Designed for both A.C Mains and 12 Volt battery operation.
- Provision for independent electronic mixing of two microphones and one gramophone channel.
- Built-in vibrator.
- Special tone control circuit, with independent bass boost and cut, and treble boost and cut.
- Mentioned in
- Wireless World (The), London (WW, 79) (May 1950 page 44.)
- Author
- Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.
- Other Models
-
Here you find 95 models, 86 with images and 19 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from BSR (Monarch); Great Britain