(!!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.8/6.1ma and 58/62ma)
(!!!!) (Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.5/5.2ma and 52/56ma)
(!!!!) (Best Value Single) 12AX7 Hitachi Japan branded ITT NOS 1963 (1.0/1.7ma and Gm=1500/1950)
(!!!!) (Read Review) 12AX7A=ECC83 Matsushita Japan NOS rebranded Raytheon NOS 1970 era (Gm=1800/1800 and 1.5/1.3ma) (similar to Mullard)
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (4.9/4.6ma and 42/43ma)
(!!!!) (Recommended Pair) 6LQ6=6JE6C Sylvania NOS 1970 era (76ma and 77ma)
(!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1971 (4.9/5.2ma and 59/56ma)
(!!!) (Best Overall Pair) EL36 Haltron Japan clear top NOS 1960's (94ma and 93.5ma)
(!!!) (Best Pair #3) 6GU7 RCA NOS 1970-1971 (10/13ma and 11/12ma)
(!!!) (BEST PAIR) 6DJ8 Matshushita JAPAN branded RCA NOS 1975 (19/18ma and 17/20ma)
(!!!) (Best Pair) 6GK5=6FQ5A Matsushita Japan rebranded Raytheon NOS (12/13ma)
(!!!) (Best Value Pair) 12AX7A=ECC83 Raytheon by HITACHI JAPAN NOS 1960's (1.5/1.4ma and 1.6/1.4ma) (High mA and Gm) 1-3 % matched
(!!!) (Best Value Pair) 6DJ8 Matshushita JAPAN branded RCA NOS 1975 (15/17.8ma and 16.4/18.2ma)
(!!!) (BEST VALUE PAIR) EL84 Raytheon JAPAN NOS 1960's (45ma and 48.5ma)
(!!!) (Best Value) 6681=12AX7 Hitachi Japan branded Amperex NOS 1970's (Gm=1400/1400 and 0.8/0.7ma)
(!!!) (Good Value Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (8ma and 8ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (8.2ma and 8.3ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Toshiba Japan rebranded Raytheon NOS (8.7ma and 9.7ma)
(!!) (#1 6HM5 Japan Pair) 6HA5=6HM5 Hitachi Japan branded RCA NOS 1970's (14.5ma and 15ma) (Highest Ma and Gm)
(!!) (#2 6HM5 Japan Pair) 6HA5=6HM5 Hitachi Japan branded RCA NOS 1970's (12ma and 13ma)
