McVitie Weston valve collection, Westinghouse Radiotron valve, type VU71
Westinghouse Radiotron valve, type VU71, marked MADE IN CANADA 10E/11529, (RMW/Y449A - McVitie Weston number), by Westinghouse Cooper Hewitt Co..
Westinghouse Radiotron valve, type VU71, marked MADE IN CANADA 10E/11529, (RMW/Y449A - McVitie Weston number), by Westinghouse Cooper Hewitt Co..