McVitie Weston valve collection, X.16 valve
X.16 valve, cylindrical glass envelope 1.4in diam x 2in long, on std. Brit 4-pin base with screw top cap, (RMW/P59 - McVitie Weston number), by Unknown maker.
X.16 valve, cylindrical glass envelope 1.4in diam x 2in long, on std. Brit 4-pin base with screw top cap, (RMW/P59 - McVitie Weston number), by Unknown maker.