Marconi Osram thermionic triode valve

Made:
1927 in England
Marconi Osram thermionic triode valve

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License

Science Museum Group
© The Board of Trustees of the Science Museum

Marconi Osram thermionic triode valve and box

P425

Details

Category:
Radio Communication
Object Number:
Y7001.704
Materials:
glass, plastic (unidentified), metal (unknown) and cardboard
Measurements:
overall: 93 mm 43 mm,
type:
triode valve and thermionic valve