(!!!!!) (Best Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (best sound)
$ 119.99
1 pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971
1 tube) 12.0ma Gm=5200 and 9.0ma Gm=6300 (triode/pentode)
1 tube) 11.2ma Gm=5000 and 10.3ma Gm=6500 (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