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(!!!!) (Best Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (12.6/10.6ma and 14/11.5ma) (best sound) (McIntosh, Allnic)

(!!!!) (Best Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (12.6/10.6ma and 14/11.5ma) (best sound) (McIntosh, Allnic)

$ 149.99

1 pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 

1 tube) 12.6ma Gm=5400 and 10.6ma Gm=6500 (triode/pentode) good printing

1 tube) 14.0ma Gm=5700 and 11.5ma Gm=6800 (triode/pentode) fairly good printing

 

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

 

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