7247=12DW7 EICO MULLARD UK used/good 1962 (0.7/9.2ma)
$ 34.99
7247=12DW7 EICO MULLARD UK used/good 1962
12AX7 Section = 0.7ma Gm=1350
12AU7 Section = 9.2ma Gm=1900
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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