(!!!!) (Recommended Pair) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (1.0/1.2ma and 1.0/1.1ma) 1-5% matched (highest mA and Gm)
(READ REVIEW) JAN-7308 Amperex USA gold pins NOS 1977 (15.8/14.5ma and 15.2/15.4ma)
