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(!!) (Best Overall Single) 7247=12DW7 GE branded RCA NOS pinched plates 1970 (1.2ma and 14.5ma) (Highest Ma and Gm)
(!!) (Best Overall Single) 7247=12DW7 GE branded RCA NOS pinched plates 1970 (1.2ma and 14.5ma) (Highest Ma and Gm)
$ 52.99
7247=12DW7 GE branded RCA NOS pinched plates 1970
12AX7 Section = 1.2ma Gm=1800
12AU7 Section = 14.5ma Gm=2400
Tested on Amplitrex
12AX7 Section NOS Good = 1-1.2ma Gm=1500-1600
12AU7 Section NOS Good = 8-10ma Gm=1800-2200
See more: vacuum tube
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 (Best Overall Single) 7247=12DW7 GE branded RCA NOS pinched plates 1970 (1.2ma and 14.5ma) (Highest Ma and Gm) "Pin It")