(!!!!!) (Best Single) 5687 GE 5 Star NOS 1973 (37.5ma/33.5ma) (Audio Note, Modwright)
(!!!!!) (Best Value Pair) JAN-5687WA Sylvania black plates used/test like new 1967-1970 era (43.6/47ma and 46.8/44.2ma) (Highest Ma and Gm)
(!!!!) (Best RCA Single) 5687 RCA bronze plates NOS 1972 (35/36ma)
(!!!!) (Best Single 1961) 5687 GE 5 Star NOS 1961 (33ma/37ma) (Audio Note, Modwright)
(!!!) (Best Single) CK5687WA Raytheon black plates "O" getter like new 1960 (35/38ma)
(!!!) (Good Value Pair) JAN-5687WA Sylvania used/very good 1960's (35/35.6ma and 34.8/35.5ma)
(!!!) (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) JAN-5687WA Raytheon bronze plates "O" getter like new 1960 era (33.5/33ma)
(!!!) (Recommended Single) 5687 RCA bronze plates NOS 1964 (35.2/37.0ma)
(!!!) (Recommended single) 5687 RCA bronze plates NOS 1970 era (38/44.5ma)
(!!!) (slightly microphonic Single) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1968 (42.5/44.5ma)
(!!!) (slightly microphonic Single) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1970 (35/37.2ma)
(!!!) (slightly microphonic) 5687 Tungsol black plates "U" getter halo branded GE NOS 1950's (36/40ma)
(!!) (#1 5687 Tungsol used 1950's) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's (32.5/39ma)
(!!) (#1 5687 Tungsol used 1961) 5687WA Tungsol bronze plates "O" getter halo used/very good 1961 (33.4/34.8ma)
(!!) (Best Single) 5687 Tungsol rebranded CBS black plates "U" getter NOS 1950's (38/48ma)
(!!) (Best Value Single) JAN-5687WA Raytheon bronze plates used/tests like new 1969 (41.5/43.5ma) (High Ma and Gm)
(!!) (Good Value Single) 5687 Tungsol black plates "U" getter halo used/very good 1957 (30/33ma)
(!!) (Good Value Single) JRP-5687WA Raytheon bronze plates used/good early 1960's (33/31.6ma)
(!!) (Recommended Single) JAN-CRP-5687WA Raytheon black plates tests like new 1962 partiailly faded printing (33.2/35.4ma)