McVitie Weston valve collection, Mullard valve, type X50
- Mullard Limited
Mullard valve, type X50, marked W3247 and serial No.1, glass envelope cracked, horn electrode nuts missing, (RMW/J131 - McVitie Weston number), by Mullard Limited.
- Electronic Components
- Object Number:
- STC plc
- Permanent collection
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