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(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)

(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)

$ 37.99

E80CF=7643 Valvo Germany branded International NOS 1963 (Triode/Pentode) 

1 tube) 10.8ma Gm=4600 and 13.4ma Gm=6300 

 

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

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