Siemens and Halske triode valve, c.1917

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Siemens and Halske triode valve, c.1917
Science Museum Group
© The Board of Trustees of the Science Museum

Siemens and Halske triode valve, c.1917

Details

Category:: Electronic Components

Object Number:: 1974-524

type:: valve

credit:: Hill, C.H.

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Siemens and Halske triode valve, c.1917

Details

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