Marconi BD517C microphone and general purpose amplifier module

Marconi BD517C Microphone Amplifier Module, valve, 1961.

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Marconi BD517C Microphone Amplifier Module, valve, 1961.
Science Museum Group
© The Board of Trustees of the Science Museum

Marconi BD517C Microphone Amplifier Module, valve, 1961.

The original BD517 amplifiers date from 1951 - 1955. This improved version, the BD517C, was first manufactured in 1961 and would have been used in TV production/broadcast.

The Marconi Wireless Telegraph Company merged with EMI Ltd in 1934, and the BBC adopted the Marconi-EMI system for public television broadcast in 1936.

Details

Category:
Television
Collection:
BBC Heritage Collection
Object Number:
2012-5118/32
Materials:
plastic (unidentified), metal (unknown) and electronic components
Measurements:
overall: 160 mm x 240 mm x 120 mm, 2.5 kg
type:
amplifier