McVitie Weston valve collection, Mullard valve, type T.7A.
- maker:
- Mullard Limited
Mullard valve, type T.7A., marked No.3, 1ft 8in overall, with supporting ring and wires, (RMW/J116 - McVitie Weston number), by Mullard Limited.
Mullard valve, type T.7A., marked No.3, 1ft 8in overall, with supporting ring and wires, (RMW/J116 - McVitie Weston number), by Mullard Limited.