12DW7 Sylvania branded Tungsol NOS 1960's (1.3/9.2ma)
$ 47.99
12DW7 Sylvania branded tungsol NOS 1960's very good printing
12AX7 Section = 1.3ma Gm=1800
12AU7 Section = 9.2ma Gm=2000
Tested on Amplitrex
12AX7 Section Good = 1-1.2ma Gm=1600-1800
12AU7 Section Good = 8-10ma Gm=1800-2200
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