Metropolitan-Vickers Cosmos thermionic triode valve

Made:: 1925 in England

maker:: Metropolitan-Vickers Electrical Company Limited

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Metropolitan-Vickers Cosmos thermionic triode valve DE50

Details

Category:: Radio Communication

Object Number:: Y7001.904

Materials:: glass, metal (unknown) and bakelite

Measurements:: overall: 117 mm 47 mm,

type:: thermionic valve and triode valve

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Metropolitan-Vickers Cosmos thermionic triode valve

Details

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