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(!!!!) (Best Pair #1) 6BX7GT Sylvania triple mica

(!!!!) (Best Pair #1) 6BX7GT Sylvania triple mica "O" getter NOS 1960 era (74/66.5ma and 78.5/68.5ma) (same Gm)

$ 44.99
(!!!!) (Best Pair #2) 6BX7GT Sylvania triple mica

(!!!!) (Best Pair #2) 6BX7GT Sylvania triple mica "D" getter NOS 1950's (52.2/47ma and 48/44ma)

$ 42.99
(!!!!) (Best Pair #2) 6BX7GT Sylvania triple mica

(!!!!) (Best Pair #2) 6BX7GT Sylvania triple mica "D" getter NOS 1950's (60/55ma and 52/54ma)

$ 44.99
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