McVitie Weston valve collection, Osram valve, type HD22

Made:
circa 1936
maker:
Osram
Osram valve, type HD22, domed glass

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Osram valve, type HD22, domed glass
Science Museum Group
© The Board of Trustees of the Science Museum

Osram valve, type HD22, domed glass, 5-pin black moulded base with top cap, (RMW/Y21 - McVitie Weston number), by Osram, c.1936.

Details

Category:
Electronic Components
Object Number:
1972-141/1528
type:
valve
credit:
STC plc