(!!!) (slightly microphonic) 5687 Tungsol black plates "U" getter halo branded GE NOS 1950's (36/40ma)
(!!) (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) JRP-5687WA Raytheon bronze plates used/good early 1960's (33/31.6ma)
(!) 5687 Raytheon part bronze part black plates used/tests like new 1960 (33/38ma)
(!) JAN-CRP-5687 Raytheon black plates used/very good around 1960 (33.5/37.6ma)
JRP-5687WA Raytheon black plates used/good 1965-1966 (28/31ma)
JRP-5687WA Raytheon bronze plates used/good 1960's (34.6/36.4ma)
