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(!!!!!) (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.6/11.4ma and 11.8/10.6ma) (same Gm) (best sound)
(!!!!!) (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.6/11.4ma and 11.8/10.6ma) (same Gm) (best sound)
$ 129.99
1 pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 faded printing
1 tube) 11.6ma Gm=5100 and 11.4ma Gm=6600 (triode/pentode)
1 tube) 11.8ma Gm=5100 and 10.6ma Gm=6600 (triode/pentode)
Matched on Amplitrex
Good Triode Ma/Gm=11-14ma Gm=4500-5000
Good Pentode Ma/Gm=8-10ma Gm=5500-6000
Recommended for
- McIntosh MR67, MR71 FM Stereo tuner
- Telefunken radio
- Graaf GM 100 amplifier
- HH Scott 350 Tuner 1961-2
See more: vacuum tube
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 (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.6/11.4ma and 11.8/10.6ma) (same Gm) (best sound)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_355a4311-047f-4f9a-95b7-c9f87cea515e.jpg?v=1762934669){kind=link}
 (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.6/11.4ma and 11.8/10.6ma) (same Gm) (best sound) "Pin It")