McVitie Weston valve collection
- maker:
- Royal Ediswan
Ediswan delay switch for power supply, type D.L.S.I., B4 base, (RMW/Y41 - McVitie Weston number), made by Royal Ediswan.
Ediswan delay switch for power supply, type D.L.S.I., B4 base, (RMW/Y41 - McVitie Weston number), made by Royal Ediswan.