McVitie Weston valve collection, Mullard valve, type 0.30A
- maker:
- Mullard Limited
Mullard valve, type 0.30A, marked 921, pinch marked 0/30, (RMW/J24 - McVitie Weston number), by Mullard Limited.
Mullard valve, type 0.30A, marked 921, pinch marked 0/30, (RMW/J24 - McVitie Weston number), by Mullard Limited.