Marconiphone thermionic triode valve

Made:
1942 in England
maker:
Marconiphone Company Limited
Marconiphone thermionic triode valve

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Marconiphone thermionic triode valve

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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