(!!!!!) (Best Pair 1960) 5814A GE "5 STAR" triple mica "O" getter halo 1960 (10.4/10.6ma and 10.6/10.8ma) (best 12AU7 SUB) 1-2% matched
(!!!!!) (Best Pair) 5751 Tungsol tall gray ribbed plates "U" getter NOS 1960 era (2.4/2.4ma and 2.3/2.1ma)
(!!!!!) (Good Value Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1950's (9.6/9.8ma and 9.2/9.8ma) (Emille Labs Cha'am)
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" gray plates triple mica "O" getter 1959 like new (2.5/2.4ma)
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" gray plates triple mica "O" getter 1960 like new (2.2/2.1ma) (same Gm)
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" NOS gray plates triple mica "U" getter 1956 (2.1/2.2ma)
(!!!!!) (Recommended Pair) 12BH7A GE NOS gray oval plates large "U" getter 1957-1960 (10/12ma and 10.2/14.2ma) (McIntosh, Quicksilver, Art Audio)
(!!!!!) (Recommended Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1955-1957 (10.5/10.9ma and 10.0/10.7ma) 1-3% matched
(!!!!) (Best Single 1957) JG-5751WA GE NOS black plates triple mica U getter halo 1957 (2.3/2.7ma) (High mA and Gm)
(!!!!) (Best Single) 12BH7 GE NOS gray oval plates "U" getter 1953 (13.8/14.2) (Quicksilver, Wells, Doshi, McIntosh)
(!!!!) (Good Value Pair) 12BH7A GE NOS gray oval plates "o" getter halo 1961-1965 (7.2/6.6ma and 8.4/6.8ma)
(!!!) (Best 5-Star) 5814A=12AU7 GE Electronic Secretary "5 STAR" triple mica NOS 1960 (10.8/10.4ma) (Same Gm)
(!!!) (BEST PAIR) 6463 GE NOS 1965 (16.4/16.5ma and 16.8/17.8ma) (same pinout as 6350)
(!!!) (BEST PAIR) 6463 GE NOS 1966 (16.8/21ma and 17.6/21.5ma) (Highest mA and Gm)
(!!!) (Best Single 1954) 5814A=12AU7 GE "5 Star" triple mica NOS 1954 (10.2/10.8ma)
(!!!) (Best Single 1958) JTL-5687 Tungsol black plates "U" getter like new 1958 (37.5/41.5ma)
(!!!) (Best Single 1960) 5814A=12AU7 GE "5 STAR" triple mica NOS 1960 (10.0/10.4ma) 1-3% section balance
(!!!) (Best Single) 5751 GE 5 Star NOS 1974 (2.9/2.8ma) 1-2% section balance
(!!!) (BEST SINGLE) 5751 GE 5 Star triple mica NOS 1958-1959 (2.3/2.4ma)
(!!!) (Good Value Pair) 6350 Sylvania black ribbed plates "U" getter used/good 1957 (9.0/9.2ma and 9.2/10ma) 1-3% matched
