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7586 Sylvania Nuvistor NOS (1 in stock)
7586 Sylvania Nuvistor NOS (75/60)
KT77 GEC brown base used/70-75% 1960's (61.5ma)
KT77 Gold Lion brown base used/very good, top getter like new, 1978-1979 (81ma) (Gm=11,900 like new)