McVitie Weston valve collection, Dario valve, type P( )3
Dario valve, type P( )3, red moulded and knurled 5-pin base, (RMW/G19 - McVitie Weston number), by Societe Francaise Radioelectrique.
Dario valve, type P( )3, red moulded and knurled 5-pin base, (RMW/G19 - McVitie Weston number), by Societe Francaise Radioelectrique.