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(!!!) (Best Single) 6350 RCA black plates NOS "O" getter NOS 1960's (16.0/16.2ma) (Highest Ma and Gm)
(!!!) (Best Single) 6AN8 RCA branded Raytheon "D" getter gray plates NOS 1960 era (16.5/15.5ma)
(!!!) (Best Single) 6L6GC RCA black plate NOS 1968 (72.5ma)
(!!!) (Best Single) CK5687WA Raytheon black plates "O" getter like new 1960 (35/38ma)
(!!!) (Best Single) GZ32 Miniwatt by Mullard UK gray plates D getter NOS 1960 very good condition (60/40 and 60/40) 1% section balance
(!!!) (Best Value Pair) 6350 Sylvania rebranded United black ribbed plates NOS "U" getter 1957 (10.0/10.2ma and 10.5/9.5ma)
(!!!) (Best Value Single) GL-5751 GE "5 Star" black plates triple mica D getter 1955 era used/tests like new (2.3/2.4ma) (Gm like new) 1-2% section balance
(!!!) (Good Value Pair) 6350 Sylvania black ribbed plates "U" getter used/good 1957 (9.6/9.3ma and 9.5/9.8ma) 1-3% matched (same Gm)
(!!!) (Good Value Pair) 6SN7GTB RCA ADT NOS 1959 (8.4/7.7ma and 8.8/6.7ma)
(!!!) (Good Value Pair) JHS-5687WA Sylvania used/very good 1960's faded printing (35.4/34.2ma and 37.0/36.5ma)
(!!!) (Good Value Single) 6L6GC RCA black plate NOS 1965 broken center guide pin (76.2ma)
(!!!) (Good Value Single) GL-5751 GE "5 Star" black plates triple mica D getter 1954 used/good (2.1/2.3ma)
(!!!) (Recommended Black Plates) 12AU7A Westinghouse black plates 1960 era rebranded United 1981 "D" getter halo (8.4/9.8ma) (similar to RCA black plates)
(!!!) (Recommended Single) 12BH7A Raytheon black oval plates "D" getter NOS 1950's (9.0ma/8.6ma)
(!!!) (Recommended Single) 6SN7GTB Westinghouse gray plates NOS 1965 (8.6/7.4ma)
(!!!) (Recommended Single) JHS-6AN8A Sylvania NOS 1966 (13.6/16.5ma)
(!!!) (Recommended Single)6SN7GT Tungsol tests like new black coated glass and black round plates 1945 (9.2/9.0ma) (close triode balance)
(!!!) (SINGLE) 12AU7 RCA tall black plates "D" getter used/good 1950's (9.8/8.2ma)
(!!!) (SINGLE) 12BH7A Brimar UK rebranded GE short ribbed black plates 1967 (8.0/9.2ma)
(!!!) (SINGLE) 12BH7A Brimar UK rebranded GE short ribbed black plates 1968 (11/10.2ma)