(!) (Pair) 12B4A GE NOS 1960's (37ma and 38.5ma)
$ 21.99
1 platinum pair) 12B4A GE NOS 1960's same build
1 tube) 37ma Gm=7000 HP GE
1 tube) 38.5ma Gm=7250 Admiral GE
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See more: vacuum tube
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 (Pair) 12B4A GE NOS 1960's (37ma and 38.5ma) "Pin It")
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