McVitie Weston valve collection, valve
Valve, cylindrical glass envelope 1.3in diam x 2.8in long on std. Brit 4-pin base, detached, (RMW/P37 - McVitie Weston number), by Unknown maker.
Valve, cylindrical glass envelope 1.3in diam x 2.8in long on std. Brit 4-pin base, detached, (RMW/P37 - McVitie Weston number), by Unknown maker.