(!!!) (Best Holland Single) ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957 (14ma/11ma)
$ 44.99
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
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