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