McVitie Weston valve collection, Mullard valve, type 2D13C
- maker:
- Mullard Limited
Mullard valve, type 2D13C, marked dummy, (RMW/A31 - McVitie Weston number), by Mullard Limited.
Mullard valve, type 2D13C, marked dummy, (RMW/A31 - McVitie Weston number), by Mullard Limited.