(!!!!!) (Best Overall Pair) JAN-6550A GE NOS "stapled plates" 1985-1986 (139.3ma and 140.6ma) 1-2% matched (Close Gm)
(!!!!!) (BEST OVERALL QUAD) JAN-6550A GE NOS 1985-1986 (135ma, 135.6ma, 134.5ma, 135.8ma)
(!!!!!) (Best Pair #1) 211=VT-4-C GE NOS 1943 (108.2ma and 108.4ma)
(!!!!!) (Best Pair #1) JAN-6550A GE NOS "stapled plates" 1985-1986 (142ma and 143ma) 1-2% matched
(!!!!!) (Best Pair) JAN-6550A GE NOS "stapled plates" 1985-1986 (131.8ma and 132.2ma) 1-2% matched
(!!!!!) (BEST QUAD #2) JAN-6550A GE NOS 1985-1986 (138ma, 139ma, 136.6ma, 137.6ma)
(!!!!!) (BEST QUAD #3) JAN-6550A GE NOS 1985-1986 (132.5ma, 132.2ma, 133.2ma, 134.4ma) 1-2% matched (close Gm)
(!!!!!) (BEST QUAD) JAN-6550A GE NOS 1985-1986 (129ma, 129ma, 129.5ma, 130ma) 1-3% matched
(!!!!!) (BEST QUAD) JAN-6550A GE NOS 1985-1986 (130.2ma, 131ma, 131.2ma, 132.6ma) 1-3% matched
(!!!!!) (BEST VALUE QUAD) JAN-6550A GE NOS 1985-1986 (125ma, 126ma, 126.6ma, 127.5ma) (close Gm)
(!!!!!) (Best Value Single) JAN-5691 Philips by Sylvania black plates NOS 1985 (2.4/2.6ma) (Best 6SL7GT sub)
(!!!!!) (recommended pair) JAN-5691 Sylvania black plates NOS 1977 (2.8/3.1mA and 2.5/2.9mA) (Best 6SL7GT sub) (same internals as 5691 red base)
(!!!!!) (Recommended Pair) JAN-5691 Sylvania black plates NOS 1979 (1.9/1.9mA and 1.9/2.1mA) (Best 6SL7GT sub) (same internals as 5691 red base) 1-3% matched
(!!!!!) (RECOMMENDED QUAD) JAN-6550A GE NOS 1985-1986 (129ma, 130ma, 131ma, 129.5ma) (Close Gm)
(!!!!!) (RecommendedPair) JAN-5691 Philips by Sylvania black plates NOS 1984-1985 (2.0/2.2mA and 2.1/2.4mA) (Best 6SL7GT sub) (same internals as 5691 red base) 1-3% matched
(!!!!) (Best Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/2.2ma and 2.0/2.1ma)
(!!!!) (Best Pair) 0A3 GE NOS 1956-1961 (neon)
(!!!!) (BEST SINGLE) JAN-6922 Amperex USA globe logo gold pins NOS 1967 (12/15ma)
(!!!!) (NICE SINGLE) JAN-6922 Amperex USA like new 1971 (13.4/12.6ma)
(!!!!) (Recommended Pair) JAN-6189W=12AU7WA Sylvania NOS 1973-1974 (9.2/9.6ma and 9.8/8.6ma)