McVitie Weston valve collection, Hivac valve, type DDT/220
- Made:
- circa 1935 in London
- maker:
- Hivac Limited
Hivac valve, type DDT/220, copper metallizing, (RMW/Y329 - McVitie Weston number), made by Hivac Limited, aka the High Vacuum Valve Company, London, c. 1935.
Details
- Category:
- Electronic Components
- Object Number:
- 1972-141/1861
- type:
- radio valve
- credit:
- STC plc