McVitie Weston valve collection, STC valve, type 4020A

Made:
c. 1932

STC valve, type 4020A, marked G.P.O. W32 234, No. 73, pinch marked V 727, (RMW/E161 - McVitie Weston number), by Standard Telephones and Cables Limited, c. 1932.

Details

Category:
Electronic Components
Object Number:
1972-141/907
type:
valve
credit:
STC plc