McVitie Weston valve collection, Mullard valve, type 6725
- Mullard Limited
Mullard valve, type 6725, sphere-ended glass envelope with top pip, copper and black moulded 4-pin base, (RMW/J19A - McVitie Weston number), by Mullard Limited.
- Electronic Components
- Object Number:
- STC plc
- Permanent collection
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