'Colossus' valve heater transformer, 1940-1950.

'Colossus' valve heater transformer, 1940-1950.
4 0 c m
actual image size: 27cm x 32cm


Valve heater transformer, reputedly from the Colossus computer. Colossus is regarded by many as the world's first electronic computer. It was developed in Britain in great secrecy during the Second World War, but soon after the war all the Colossus machines were deliberately destroyed. This otherwise unremarkable transformer is reputed to be a rare surviving component from a Colossus.

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© Science Museum / Science & Society Picture Library

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