(!!!) (Best Single #2) 7247=12DW7 Mullard UK rebranded RCA NOS 1969 (1.2ma and 9.2ma) (Copy)
$ 69.99
7247=12DW7 Mullard UK rebranded RCA NOS 1969
12AX7 Section = 1.2ma Gm=1700 (very good)
12AU7 Section = 9.2ma Gm=2000 (very good)
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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