(!!!) (Best Holland Single) ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957 (14ma/11ma) Title: ECF80=6BL8

ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957

Triode = 14ma Gm=5000

Pentode = 11ma Gm=6100

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