McVitie Weston valve collection, valve
Valve, cylindrical glass envelope 0.6in diam x 2in long with two axial wire anodes emerging to separate connectors, evacuating pip at one end, (RMW/P42 - McVitie Weston number), by Unknown maker.
Valve, cylindrical glass envelope 0.6in diam x 2in long with two axial wire anodes emerging to separate connectors, evacuating pip at one end, (RMW/P42 - McVitie Weston number), by Unknown maker.