Marconiphone thermionic triode valve

Made:: 1942 in England

maker:: Marconiphone Company Limited

Marconiphone thermionic triode valve
Science Museum Group
© The Board of Trustees of the Science Musuem

MHL4

Details

Category:: Radio Communication

Object Number:: Y7001.808

Materials:: glass, metal (unknown) and plastic (unidentified)

Measurements:: overall: 109 mm 42 mm,

type:: thermionic valve and triode valve

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Marconiphone thermionic triode valve

Details

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