PR NOS Vintage Hitachi 12SN7GT Preamp Driver Tubes, Boxes Black Plates, 1960s, JAPAN, Ex Sound 1960s

Pr NEW NOS Vintage Hitachi 12SN7GT preamp driver tubes, incomparable vintage Japanese design, craftsmanship, attention to detail, sound quality and performance. They were made in the 1960s, Black Plates, brand new in boxes. Both sides of both tubes test New/Balanced, testing over 1000 on my B&K Mutual Conductance tube tester, where 640 is minimum good. The shipping cost includes safe packing, insurance, prompt shipping and tracking number. Buy with confidence, see my feedback. Good listening, SonnY :)