BBC D/2 Amplifier

Made:
1931
maker:
British Broadcasting Corporation

BBC D/2 amplifier, 1931. The "First 'D' Amplifier installed in Broadcasting House, 1931", later used at BBC Bristol (number J2132). Full BBC Number: D/2/10. 3 valves are present, 2 valves are missing. Damage to volume control dial scale.

It is a 3-stage rack mounted amplifier with an "echo" output, used to raise the level of transmissions incoming by land-line, such as Simultaneous Broadcast and Outside Broadcast transmissions. The Broadcasting House control room contained a large number of low frequency amplifiers which served to amplify the various transmissions originating in or passing through. These can be divided into four principal types known respectively as A, B, C, and D amplifiers.

Details

Category:
Television
Object Number:
2012-5118/116
Materials:
electronic components and steel (metal)
type:
amplifier
taxonomy:
  • furnishing and equipment
  • tools & equipment
credit:
The BBC Collection