(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (54ma and 54.5ma)
By Tube World
$ 10.99
1 pair) JAN-CHS-6BQ6GTB=6CU6 Sylvania NOS 1960's
1 tube) 54.0ma Gm=5800
1 tube) 54.5ma Gm=5800
Good Good = 50ma
Good Gm = 5200+
See more: vacuum tube
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 (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (54ma and 54.5ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/6_020fa9e2-6e56-42f6-85df-81432ee1561b.jpg?v=1697762202){kind=link}
 (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (54ma and 54.5ma) "Pin It")