Wireless valve

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Wireless valve, Osram V
Science Museum Group
© The Board of Trustees of the Science Museum

Wireless valve, Osram V.24, 1919, wirebound grid turns, small spring at end of filament, ( filament broken)

Details

Category:: Electronic Components

Object Number:: 1934-481

type:: valve

credit:: Largen, C.E.

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Wireless valve

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