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(!!!) (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched
(!!!) (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched
By Tube World
$ 79.99
1 matched pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (Triode/Pentode)
1 tube) 11.2ma Gm=4800 and 11.8ma Gm=6400 (1963)
1 tube) 11.2ma Gm=4800 and 11.5ma Gm=6800 (1961)
Good Triode section Ma and Gm = 11-13ma Gm= 4500-5000
Good Pentode section Ma and Gm = 9-11ma Gm = 6000-6500
7643=E80CF is a "SPECIAL QUALITY" low noise medium-mu triode/pentode
Specs are similar to 6BL8=ECF80
- McIntosh MR-67 tuner
See more: vacuum tube
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 (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched "Pin It")