(!!!!!) (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (best sound)
$ 129.99
1 pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971
1 tube) 11.5ma Gm=5000 and 9.6ma Gm=6000 (triode/pentode)
1 tube) 12.2ma Gm=5200 and 9.5ma Gm=6100 (triode/pentode)
Matched on Amplitrex
Good Triode Ma/Gm=12-14ma 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 (best sound) "Pin It")