Description
(!!!) (Best Mullard Single) ECF80=6BL8 IEC Mullard UK NOS 1966 (16ma/12ma) (Highest mA and Gm)
ECF80=6BL8 IEC Mullard UK NOS 1966
Triode = 16ma Gm=6000
Pentode = 12ma Gm=6900
Tested on Amplitrex
Good Triode Ma/Gm=12-14ma Gm=4500-5000
Good Pentode Ma/Gm=8-10ma Gm=5500-6000
– Klein + Hummel Telewatt Stereo-N.o.v.a VS-70 1962
– Scott 222B
– Scott 299B/C
– Scott 350B
– Graaf
– McIntosh