Marconi Osram thermionic triode valve

Made:: 1925 in England

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

Marconi Osram thermionic triode valve DE5B

Details

Category:: Radio Communication

Object Number:: Y7001.903

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

Measurements:: overall: 111 mm 54 mm,

type:: triode valve and thermionic valve

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Marconi Osram thermionic triode valve

Details

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