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(!!!!) (GE Pair) 6BQ7A GE NOS "O" getter halo 1973-1980 (10.5/9.7ma and 11.4/9.4ma) (Schiit, DNA, Modwright)
(!!!!) (GE Pair) 6BQ7A GE NOS "O" getter halo 1976 (7/10ma and 7/9ma) (Schiit, DNA, Modwright)
(!!!!) (Best Pair #2) EF86 ADZAM made by Valvo Germany NOS 1970 (3.1ma and 2.9ma) 1-5% matched
(!) 12AU7A Sylvania NOS 1960 (10/10.1ma) 1-2% section balance
(!) (SINGLE) JAN-CRP-5755=420A Raytheon clear top NOS 1965 (1.3/1.5ma)
(!!!!) (Recommended Single) E188CC=7308 Telefunken <> bottom gold pins used/good 1969 era (13.2ma/14.8ma) (rare)
(!) (SINGLE) CK-5755=420A Raytheon clear top NOS 1960's (1.4/1.3ma)
245A Western Electric used/65% 1930's
(!!!) (Best Value PAIR) 6GH8A Lindal Hitachi Japan NOS 1970's (10/11.6ma and 11.5/10.5ma)
(!!!) (Best Value PAIR) 6GH8A Lindal Hitachi Japan NOS 1970's (10.8/13.8ma and 10.8/13.8ma) 1-3% matched
(!!!) (Best Pair #3) ECC81=12AT7 Mullard UK branded Philips NOS 1970-1973 (9.6/8.4ma and 9.0/9.4ma) (Jolida, Fender)
(!!!!!) (Best Pair #2) ECF80=6BL8 Telefunken Germany <> bottom NOS 1960-1963 (13.6/7.5ma and 12.4/8ma) (best sound)
(!!!!!) (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (13/9.0ma and 12.8/8.8ma) (1-2% matched) (best sound)
(!!!!!) (Best Overall Single #1) ECF80=6BL8 Telefunken Germany NOS 1971 (14.0/11.5ma) (Highest mA and Gm)
6463 GE NOS 1965 (12.0/12.6ma)
(!!!!!) (Best Pair #1) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 same date codes (34/35.4ma and 34.2/35ma) 1-2% matched
(!!!!!) (Best Pair #2) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 same date codes (35.5/38.2ma and 35/40ma) 1-5% matched
6K11=6Q11 GE NOS 1960's (93/60, 92/60, 93/60) (triple triode)
(!!!!) (Best Overall Pair) EC92=6AB4 Telefunken Germany <> bottom NOS 1965 same date codes (9.2/9.5ma) (mic)
(!!!!) (Best Value Single) 5670W GE JAN NOS 1986 (8/10.4ma)
