7247=12DW7 GE branded RCA used/good 1960's (0.8/9.3ma)
$ 29.99
7247=12DW7 GE branded RCA used/good 1960's
12AX7 Section = 0.8ma Gm=1400
12AU7 Section = 9.3ma Gm=2000
good used single
Tested on Amplitrex
12AX7 Section Good = 1-1.2ma Gm=1600-1800
12AU7 Section Good = 8-10ma Gm=1800-2200
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