McVitie Weston valve collection, Sylvania valve, type 6J6
Sylvania valve, type 6J6, marked JAN-CHS-6J6, (RMW/Y471B - McVitie Weston number), by Sylvania Electric Products Incorporated.
Sylvania valve, type 6J6, marked JAN-CHS-6J6, (RMW/Y471B - McVitie Weston number), by Sylvania Electric Products Incorporated.