The BBC at Bush House

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Berlin line

The daily frequency test on the line to the transmitter in Berlin - this was at the height of the Cold War and Berlin was still an isolated city. The jackfields were for setting up special situations; most switching was done by a roomful of uniselectors (like a telephone exchange) adjacent to the Control Room. Taken in 1965.

Click here to see details of the Automatic Switching Unit from the 1968 edition of the operating manual ('BU1').

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Roger Wilmut. This site is not associated with the BBC