McVitie Weston valve collection, Mullard valve, type (PM)1HF
- Made:
- 1931
- maker:
- Mullard Limited
Mullard valve, type (PM)1HF, pinch marked A, serial No. D.248, (RMW/Y248 - McVitie Weston number), by Mullard Limited, 1931.
Mullard valve, type (PM)1HF, pinch marked A, serial No. D.248, (RMW/Y248 - McVitie Weston number), by Mullard Limited, 1931.