- Great Britain (UK)
- Manufacturer / Brand
- Unknown - CUSTOM BUILT: GB
- Sound/Video Recorder and/or Player
- Radiomuseum.org ID
- Main principle
- Wave bands
- - without
- Special Tape or Cassette-Format
- Power type and voltage
- Alternating Current supply (AC)
- - For headphones or amp.
- from Radiomuseum.org
- Model: Blattnerphone - Unknown - CUSTOM BUILT: GB
A recorder/player that followed the wire recorder and preceded the magnetic tape recorder . It was built by its inventor Ludwig Blattner and was based on a design by German inventor Dr. Kurt Stille, The BBC evaluated a machine in 1930 and found it suitable for recording voice but not music so in January 1931 the BBC acquired one, and later, three more. The machines were built in Germany and in the UK.
The recorder used a tape made with the same material as razor blades, 3mm (later 6 mm) wide and 0.08 mm thick, running at 5 feet per second.
A full spool had a weight of 21 lbs and a length of more than a mile of tape and could record just twenty minutes.
The Marconi Company bought the Blattnerphone rights in March 1933. The BBC replaced all but one of the Blattnerphones with Marconi-Stille machines during 1935.
The remaining machine was used in September 1939 to record Prime Minister Neville Chamberlain's speech declaring war on Germany.
Seeing an image of this device the dimensions can be approximately:
- Height: 4,9 ft
- Widht: 4,3 ft
- Depht: 1,6 ft
- Mentioned in
- BBC Year Book 1932 covering Nov 1 1930 - October 31 1931
- Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.
- Other Models
Here you find 111 models, 99 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Unknown - CUSTOM BUILT: GB