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(!!!!!) (Best Overall Pair) JG-5687WA GE black plates NOS 1962 (37/38ma and 35/37ma) (low noise)
(!!!!!) (Best Overall Single) CK-5687WB Raytheon black plates NOS 1960's (40.5ma/42ma) (Audio Note, Modwright, Manley) Highest mA and Gm
(!!!!!) (Best Pair #1) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 same date codes (34/35.4ma and 34.2/35ma) 1-2% matched
(!!!!!) (Best Pair #2) 5687WA and 5687WB GE black plates like new 1970's (39/38.5ma and 37/41ma) (Highest Ma and Gm)
(!!!!!) (Best Pair #2) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 same date codes (35.5/38.2ma and 35/40ma) 1-5% matched
(!!!!) (BEST GE PAIR #2) 5687WB GE NOS rebranded CK-5687WB Raytheon black plates with hint of bronze 1970's (Audio Note, Manley, Modwright, Audion) (36.8/37.4ma and 36.6/35.8ma)
(!!!!) (BEST GE PAIR #3) 5687WB GE NOS rebranded CK-5687WB Raytheon black plates 1970's (Audio Note, Manley, Modwright) (35.8/37.5ma and 34.6/36.2ma)
(!!!!) (Best Overall Single #2) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1967 (33/37ma)
(!!!!) (Best Overall Single) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 (43/41.5ma)
(!!!!) (BEST PAIR #1) CK-5687WB Raytheon black plates 1960's (Audio Note, Manley, Modwright) (33/34ma and 33/34.2ma) 1-2% matched
(!!!!) (Best Single #2) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1967 (31/35ma)
(!!!!) (Best Single #3) E182CC=7119 Mullard SQ Holland NOS large "O" getter halo 1964 (30/34ma)
(!!!!) (Best Single) JAN-5687WA Sylvania NOS 1967 (38/39ma) (Highest Ma and Gm)
(!!!!) (Best Single) JAN-5687WB GE NOS 1972 (34.6/35.6ma)
(!!!!) (Best Single) JHS-5687WA Sylvania NOS 1966 (46/48ma) (Highest Ma and Gm)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (25/27ma and 26.5/26ma)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (26.2/27ma and 25.6/28ma)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (26/27ma and 26.6/27.8ma)
(!!!!) (Good Value Pair) JAN-5687WB GE used/good 1970 era (29.5/31ma and 29.2/29.6ma)
(!!!!) (microphonic single) 5687 Tungsol ribbed black plates "U" getter NOS 1952 (42/41.5ma) (1st series made)
