Collection

Phillips "4 electrode" bright emitter valve

Phillips 4 electrode' bright emitter valve for use with low and

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Phillips 4 electrode' bright emitter valve for use with low and
Science Museum Group
© The Board of Trustees of the Science Museum

Phillips "4 electrode" bright emitter valve for use with low and no high tension wireless circuits

Details

Category:
Electronic Components
Object Number:
1945-35
type:
valve
credit:
March, F.J.

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