Triotron thermionic triode valve

Made:: 1935 in Austria

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

Schrack-Triotron thermionic triode valve

SD4

Details

Category:: Radio Communication

Object Number:: Y7001.806

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

Measurements:: overall: 105 mm 46 mm,

type:: thermionic valve and triode valve

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Triotron thermionic triode valve

Details

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