McVitie Weston valve collection, Mullard valve, type PM6D
- maker:
- Mullard Limited
Mullard valve, type PM6D, glass envelope loose, (RMW/D54 - McVitie Weston number), by Mullard Limited.
Mullard valve, type PM6D, glass envelope loose, (RMW/D54 - McVitie Weston number), by Mullard Limited.