McVitie Weston valve collection

maker:
Royal Ediswan
Ediswan general-purpose triode, type AR, B4 base, marked 739

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Ediswan general-purpose triode, type AR, B4 base, marked 739
Science Museum Group
© The Board of Trustees of the Science Museum

Ediswan general-purpose triode, type AR, B4 base, marked 739, (RMW/B129C - McVitie Weston number), by Royal Ediswan.

Details

Category:
Electronic Components
Object Number:
1972-141/380
type:
valve
credit:
STC plc