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(!!!!) (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 1-5% matched (Best 6BL8 sub)
(!!!!) (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 1-5% matched (Best 6BL8 sub)
$ 64.99
1 matched pair) E80CF=7643 Amperex Germany PQ NOS made by Valvo Hamburg Germany original boxes 1966 (Triode/Pentode)
1 tube) 13ma Gm=4900 and 9.5ma Gm=6200
1 tube) 15ma Gm=5100 and 10.5ma Gm=6600
Good Triode section Ma and Gm = 12-13ma 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
See more: vacuum tube
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 (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 1-5% matched (Best 6BL8 sub)&Category=vacuum tube&ImageURL=http://cdn.shopify.com/s/files/1/0333/7633/products/7643p1_95c92cba-9819-4d98-bd75-80863ebda0c4.jpg?v=1600090296){kind=link}
 (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 1-5% matched (Best 6BL8 sub) "Pin It")