(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma)
By Tube World
$ 8.99
1 pair) JAN-CHS-6BQ6GTB=6CU6 Sylvania NOS 1960's
1 tube) 48.5ma Gm=5300
1 tube) 48.6ma Gm=5500
Good Good = 50ma
Good Gm = 5200+
See more: vacuum tube
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 (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/6_23aa4cbc-e3e0-43b4-9539-d1330d7fe84d.jpg?v=1697762226){kind=link}
 (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma) "Pin It")