McVitie Weston valve collection, Mullard valve, type P.M.6
- maker:
- Mullard Limited
Mullard valve, type P.M.6, etched M206, marked Dud, (RMW/D53 - McVitie Weston number), by Mullard Limited.
Mullard valve, type P.M.6, etched M206, marked Dud, (RMW/D53 - McVitie Weston number), by Mullard Limited.