E80CF=7643 Valvo Germany branded Philips 1970 (11.4/9.0ma)
$ 37.99
E80CF=7643 Valvo Germany branded Philips 1970 (Triode/Pentode)
triode) 11.4ma Gm=4500
pentode) 9.0ma Gm=5900
Good Triode section Ma and Gm = 10-13ma Gm= 4500-5000
Good Pentode section Ma and Gm = 9-11ma Gm = 6000-6500
(The E80CF is a "SPECIAL QUALITY" medium-mu triode/pentode. Specs are similar to 6BL8=ECF80)
- McIntosh MR-67 tuner
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