BBC OBA/9 Outside Broadcast Amplifier

Made:
1952
maker:
British Broadcasting Corporation
BBC OBA/9 Outside Broadcast Amplifier

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BBC OBA/9 Outside Broadcast Amplifier
Science Museum Group
© The Board of Trustees of the Science Museum

BBC OBA/9 outside broadcast microphone amplifier, 1952, used by the BBC.

This unit (using EF37A valves) gives up to 90db gain and also has a line-up oscillator and a peak programme meter. The OBA/9 equipment was intended to replace the OBA/8 amplifier and its associated apparatus which the BBC had been using since shortly before WWII. The main advantages of the new equipment was that both size and weight had been reduced by nearly 50%. The OBA/9 units were still being used well into the late 1980s.

Details

Category:
Television
Collection:
BBC Heritage Collection
Object Number:
2012-5118/15
Materials:
aluminium alloy, electronic components and plastic (unidentified)
type:
amplifier
taxonomy:
  • furnishing and equipment
  • tools & equipment