De Forest triode type 427, 1927

Made:
1927
De Forest triode type 427, 1927

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De Forest triode type 427, 1927
Science Museum Group
© The Board of Trustees of the Science Museum

De Forest triode type 427, 1927

Details

Category:
Electronic Components
Object Number:
1976-232
type:
triode
credit:
Ferrowatt Electrical Museum