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(!!!) (Best Pair #2) 6463 GE NOS 1965 (15.0/16.4ma and 15.6/15.8ma) (same pinout as 6350)
(!!!) (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 around 1955 (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)
(!!!) (Best Value Pair) 6SL7WGT Sylvania brown base round black plates "D" getter halo 1950's (1.8/1.6ma and 1.5/1.4ma)
(!!!) (Best Value Pair) EL84 Telefunken Germany <> bottom used/strong 1956-1966 (47.6ma and 44.8ma) (same Gm)
(!!!) (Good Value Single) 12AX7 GE tall narrow ribbed plates used/good "D" getter 1952 (Gm=1300/1600) (oldest 12AX7)
(!!!) (Good Value) JG-5814A GE triple mica "U" getter halo like new 1955 in white box (8.8/9.6ma)
(!!!) (Recommended Pair) 407A Western Electric NOS "D" getter 1962-1970 (36-39/26 and 34-38/26)
(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1978 (35-43/26 and 37-43/26)
(!!!) (Recommended Single) JTL-6X4W Tungsol NOS 1955 curved "D" getter (49/40 and 52/40)
(!!!) (Recommended Single) JTL-6X4WA Tungsol NOS 1965 tests like new (64/40 and 66/40) (Highest testing single)
(!!!) (Set of 74) 6X4 US Brands NOS original boxes 1950-1980 era (set of 74)
(!!!) (SINGLE) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960's (2.2/2.6ma)
(!!!) (Single) 6J5G Sylvania engraved base black oval plate used/very good 1930's (8.0ma)
(!!!) 6SL7WGT Sylvania brown base round black plates like new 1955 no printing (2.6/2.8ma)
(!!) (Best Pair #2) 407A Western Electric D getter NOS 1966-1968 (40-40/26 and 42-43/26) 1-5% section balance
