McVitie Weston valve collection, Mullard valve, type RA
- maker:
- Mullard Limited
Mullard valve, type RA, marked RCC Polar, E174, pinch marked 216, (RMW/Y340 - McVitie Weston number), by Mullard Limited.
Mullard valve, type RA, marked RCC Polar, E174, pinch marked 216, (RMW/Y340 - McVitie Weston number), by Mullard Limited.