(!!!!) (Best Pair) 6EA7 RCA black plates NOS 1964 (2.4/40.4ma and 2.4/36ma)
(!!!!) (Best Pair) 6FQ7 GE NOS 1960's (7.5/8.0ma and 7.0/7.2ma) (Close Gm) 1-5% matched
(!!!!) (Best Pair) 6FQ7 GE NOS 1970's rebranded Westinghouse 1985 (7.0/7.2ma and 7.2/7.4ma) (same Gm) (1-3% matched)
(!!!!) (Best Pair) 6FQ7 Zenith by GE NOS 1977 (7.2/8.0ma and 7.0/7.8ma)
(!!!!) (Best Pair) 6SN7GTA GE "U" getter halo - side getter - copper grid posts NOS 1951-1952 (10.4/12.2ma and 10.6/10.8ma)
(!!!!) (Best Pair) 6SN7GTB GE NOS 1962-1964 (7.0/7.2ma and 7.6/7.3ma) (smooth) (Schiit Freya, Rogue)
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1950 (1.0ma and 1.0ma) 1-2% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1950-1953 (1.0ma and 1.0ma) 1% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1953 (1.0ma and 1.0ma) 1% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1953 (1.1ma and 1.2ma) (Highest mA) **
(!!!!) (Best Pair) 7N7 Sylvania branded RCA 1960 era (10.4/10ma and 10.6/9.8ma) (High Gm) 1-3% matched (strong pair)
(!!!!) (Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 test like new faded printing (2.5/2.2ma and 2.4/2.8ma)
(!!!!) (Best Pair) JAN-12AT7WC Sylvania black plates NOS 1975-1980 (10/8.6ma and 10.2/9.2ma)
(!!!!) (Best Quad) 6L6GT=6n3C Russian NOS 1982 in white boxes (68.5/69/69.5/70.5ma)
(!!!!) (Best Quad) 6L6GT=6n3C Russian NOS 1982 in white boxes (72/72/72/73ma)
(!!!!) (Best Quad) 6L6GT=6n3C Russian NOS 1982 in white boxes (73.5/74/74.5/74.5ma)
(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1960's - 1970's (100, 101.6, 103, 102ma)
(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1970's (95.5, 96, 98, 99.6ma)
(!!!!) (Best RCA Pair) 5V4GA RCA gray plates NOS 1968-1972 (58-58/40 and 59-59/40)
(!!!!) (BEST RCA PAIR) 6EU7 RCA NOS 1965 (52-57/32 and 51-55/32)
