BBC D/11 General Purpose Amplifier

Made:
circa 1943 in Londonderry
maker:
British Broadcasting Corporation
BBC D/11 General Purpose Amplifier

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

BBC D/11 General Purpose Amplifier
Science Museum Group
© The Board of Trustees of the Science Museum

BBC D/11 amplifier, c.1943. The D/11 amplifier was produced on a large scale as a high-grade general-purpose amplifier. This particular unit came from BBC Londonderry. The full BBC number on it is D/11/656. This is a rack-mount unit, and has a very rusty face plate.

The four types of amplifier used in the radio broadcast chain were referred to by the BBC as A, B, C, and D amplifiers. The first 'D' amplifiers, with a gain of about 45dB, were often used to amplify incoming Post Office lines.

Details

Category:
Television
Collection:
BBC Heritage Collection
Object Number:
2012-5118/118
Materials:
steel (metal) and electronic components
Measurements:
overall: 120 mm x 565 mm x 220 mm, 6.5 kg
type:
amplifier