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SIEMENS EXCHANGE RING GENERATOR, 1950's

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SIEMENS EXCHANGE RING GENERATOR, 1950's

Used in small telephone systems for creating enough voltage to drive telephone bells.

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A0083



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