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(!!!!) (Best Single #1) 12AX7 RCA black plates branded Westinghouse "U" getter NOS 1950's (1.1/1.4ma and Gm=1700/1800) (strong mA and Gm)
(!!!!) (Best Single) EF86 Philips Holland NOS 1970 (4.0ma) (Highest mA and Gm)
(!!!!) (Best Single) JAN-CHS-6SL7WGT Sylvania brown base round black plates "D" getter NOS 1959 (2.6/2.6ma) 1% section balance (Highest mA and Gm)
(!!!!) (Best Value 1955) CV378=GZ37 Mullard UK "D" getter NOS 1955 (56/40 and 56/40)
(!!!!) (PAIR) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960's (2.0/2.2ma and 1.8/2.2ma) (rare)
(!!!!) (READ REVIEW) GB-5931 Sylvania brown base gold brand 1960's (60/40 and 65/40)
(!!!!) (Single 1958) 5751 Sylvania black plates triple mica D getter halo 1958 used/good (2.7/2.3ma)
(!!!!) (Single) 12AY7 GE branded Raytheon black box plates "D" getter 1953 era in white box (3.3/3.1ma) (Same Gm)
(!!!!) (Single) 5751 GE NOS gray plates NOS 1981 (2.6/2.9ma) (Same Gm)
(!!!!) (Single) EF86 Philips Miniwatt Holland NOS 1963 (2.9ma)
(!!!) (BEST PAIR #1) 6463 GE NOS 1965 (16.4/16.5ma and 16.8/17.8ma) (same pinout as 6350)
(!!!) (BEST PAIR #1) GZ32 Miniwatt Dario France NOS 1955 (62-64/40 and 62-64/40) (small rattle inside each base)
(!!!) (Best Pair #2) 6463 GE NOS 1965 (15.0/16.4ma and 15.6/15.8ma) (same pinout as 6350)
(!!!) (BEST PAIR #2) GZ32 Miniwatt Dario France NOS 1956 (63-63/40 and 62-62/40) (small rattle inside each base)
(!!!) (Best Pair #3) 407A Western Electric NOS "O" getter 1972-1983 (40-40/26 and 42-43/26)
(!!!) (BEST PAIR #3) 6463 GE NOS 1965 (14.5/12.8ma and 13.5/13.7ma)
(!!!) (BEST SINGLE #3) GZ32 Miniwatt Dario France NOS 1955 partially faded printing (62/40 and 62/40) small rattle inside base
(!!!) (Best SIngle 1950's) 12AT7 Brimar UK black plates "O" getter halo NOS late 1950's (11.6/12.8ma)
(!!!) (Best Single) 12AT7 Brimar UK branded Knight by Mullard black plates "O" getter NOS 1966 (9.2/10.2ma)
(!!!) (Best Single) 12AZ7 Tungsol black plates "D" getter halo NOS 1955 (12ma/14ma)
