McVitie Weston valve collection

Made:
circa 1933 in Canada and United States
maker:
Osram
Osram Catkin tetrode valve, type MS4B, B5 base

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Osram Catkin tetrode valve, type MS4B, B5 base
Science Museum Group
© The Board of Trustees of the Science Museum

Osram Catkin tetrode valve, type MS4B, B5 base, no screening can, with top terminal, marked dummy, (RMW/G64 - McVitie Weston number), by Osram, c. 1933.

Details

Category:
Electronic Components
Object Number:
1972-141/1072
type:
valve
credit:
STC plc