McVitie Weston valve collection, Mullard valve, type D.F.A.9

Made:
1928
maker:
Mullard Limited

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Mullard valve, type D.F.A.9, glass envelope marked K278, (RMW/D63 - McVitie Weston number), by Mullard Limited, 1928.

Details

Category:
Electronic Components
Object Number:
1972-141/649
type:
valve
credit:
STC plc