McVitie Weston valve collection, Brimar valve, type 7D5
- Made:
- 1943
Brimar valve, type 7D5, domed envelope, graphited, pinch marked X286, (RMW/Y552B - McVitie Weston number), by British Thomson-Houston Company Limited, 1943.
Brimar valve, type 7D5, domed envelope, graphited, pinch marked X286, (RMW/Y552B - McVitie Weston number), by British Thomson-Houston Company Limited, 1943.