Marconi Osram thermionic triode valve

Made:
1925 in England
Marconi Osram thermionic triode valve

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Science Museum Group
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Marconi thermionic triode valve

V.T. No. 3

Details

Category:
Radio Communication
Object Number:
Y7001.809
Materials:
metal (unknown) and glass
Measurements:
overall: 101 mm 49 mm,
type:
triode valve and thermionic valve