Modulator and sub-modulator unit from Daventry short-wave transmitter

Made:
1932 in United Kingdom

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Modulator and sub-modulator unit from modulation transformer taken from the original short-wave transmitter at Daventry, made by Standard Telephones and Cables Limited for the British Broadcasting Corporation, 1932.

These units were taken from the first short-wave radio transmitter to be installed at Daventry in 1932. Radio transmissions had been made from Daventry since 1925, but the shortwave receivers were installed specifically for broadcasting radio programmes to the Empire via the Empire Service (later the BBC World Service). Four two-hour programmes were provided daily, broadcasting initially only in English to Australia and New Zealand, India, East and Southern Africa, West Africa and Canada. On the first day of the Empire Service, Sir John Reith, the first Director General of the BBC, gave the Empire Service’s opening address. His speech included a warning about the quality of the new service: "Don't expect too much in the early days; for some time we shall transmit comparatively simple programmes, to give the best chance of intelligible reception.”

Details

Category:
Radio Communication
Object Number:
1970-44
Materials:
electronic components, glass, metal (unknown) and plastic (unidentified)
type:
rf modulator
taxonomy:
  • component - object
credit:
Donated by the British Broadcasting Corporation.