12DW7 Sylvania NOS 1960's (1.4/8.7ma)
By Tube World
$ 47.99
12DW7 Sylvania NOS 1960's
12AX7 Section = 1.4ma Gm=1900
12AU7 Section = 8.7ma Gm=2000
Tested on Amplitrex
12AX7 Section Good = 1-1.2ma Gm=1600-1800
12AU7 Section Good = 8-10ma Gm=1800-2200
See more: vacuum tube
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