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MERCURY  CONTACT RELAY, 1930's

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MERCURY CONTACT RELAY, 1930's

Switching by contacts immersed in Mercury is almost maintenance free, and can carry reasonable currents.

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A0303



2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221