McVitie Weston valve collection, Mullard valve, type VT (Exptl.)
- maker:
- Mullard Limited
Mullard valve, type VT (Exptl.), marked 3691T, (RMW/G13 - McVitie Weston number), by Mullard Limited.
Mullard valve, type VT (Exptl.), marked 3691T, (RMW/G13 - McVitie Weston number), by Mullard Limited.