McVitie Weston valve collection, GEC Osram valve, type D

Made:
1919
maker:
GEC (Osram)

Science Museum Group
© The Board of Trustees of the Science Musuem

GEC Osram valve, type D, marked 61 RAF, pinch marked D438, (RMW/B23 - McVitie Weston number), by G.E.C. (Osram), 1919.

Details

Category:
Electronic Components
Object Number:
1972-141/267
type:
valve
credit:
STC plc