McVitie Weston valve collection
- Made:
- United States and Canada
Mazda output triode valve, type AC/P, B5 base, pinch marked ACP/* 104, (RMW/F33 - McVitie Weston number), by British Thomson-Houston Company Limited.
Mazda output triode valve, type AC/P, B5 base, pinch marked ACP/* 104, (RMW/F33 - McVitie Weston number), by British Thomson-Houston Company Limited.