(!!!!) (Best Overall Pair) 5U4GB GE NOS 1977 (60-61/40 and 60-61/40)
$ 69.99
1 pair) 5U4GB GE NOS 1977 (EL) 1% matched
1 tube) 60/40 and 61/40
1 tube) 60/40 and 61/40
See more: vacuum tube
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 (Best Overall Pair) 5U4GB GE NOS 1977 (60-61/40 and 60-61/40) "Pin It")
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