McVitie Weston valve collection, Ediswan valve, type NR4C

Made:
1925

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

Ediswan valve, type NR4C, (RMW/B45 - McVitie Weston number), by Royal Ediswan, 1925.

Details

Category:
Electronic Components
Object Number:
1972-141/287
type:
valve
credit:
STC plc