McVitie Weston valve collection, Dario Resistron valve
Dario Resistron valve, pinch marked 229c, (RMW/E44 - McVitie Weston number), by Societe Francaise Radioelectrique.
Dario Resistron valve, pinch marked 229c, (RMW/E44 - McVitie Weston number), by Societe Francaise Radioelectrique.