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1 Pair) 12JB6A GE NOS 1970 era
1 tube) 70ma Gm=7700
1 tube) 75ma Gm=7500
 (Best Pair) 12JB6A GE NOS 1970 era (70ma and 77ma) "Pin It")
 (Best Pair) 12JB6A GE NOS 1970 era (70ma and 77ma)&Category=&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_ac3bfb92-e845-4f3c-ab77-cdba7210c5db.jpg?v=1716266088){kind=link}