McVitie Weston valve collection, Horned triode valve
Horned triode valve, standard British 4-pin base with grid pin removed, (RMW/J125 - McVitie Weston number), by Unknown maker.
Horned triode valve, standard British 4-pin base with grid pin removed, (RMW/J125 - McVitie Weston number), by Unknown maker.