Siemens and Halske audio-frequency oscillator

Made:: 1937

maker:: Siemens & Halske AG

Siemens and Halske audio-frequency oscillator, Ref VII D 4/19b, c. 1937

Details

Category:: Radio Communication

Object Number:: 1985-830

type:: oscillator

credit:: Woodham, E.A.

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Siemens and Halske audio-frequency oscillator

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