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5879 Sylvania branded RCA NOS 1977 (1.4ma)
(!!!!!) (SINGLE) 7581A=6L6GC GE brown base like new 1967 reboxed (76ma) (rare)
(!!!!!) (Best Pair #1) 6L6GC RCA black plate NOS 1976 same date codes (68ma and 67.2ma) (Same Gm)
(!!!) (Recommended Single) 5691 RCA Red Base branded Westinghouse black plates used/good 1960 (1.8/2.1ma)
(!) (Microphonic Single) CK-5687 Raytheon black plates "U" getter NOS 1956 (31.5/31.0ma)
(!!!) (Single) CK-5687 Raytheon black plates "O" getter like new 1960 (30/33.5ma)
(!!) (BEST PAIR) 6AN8A RCA NOS 1960's - 1970 era (16.6/13.4ma and 17ma/13.8ma)
6973 RCA gray plate used/good 1960's (33.8ma)
(!!) (Best Value Single) ECC85=6AQ8 RCA Canada NOS 1970's faded printing (12.2/13.0ma)
5AN8 RCA NOS sub for 6AN8 (76/60 and 82/60)
6973 RCA gray plate used/good 1970 era (56.5ma)
5Y4GA RCA NOS 1963 (54/40 and 57/40)
(!!!!) (Pair) 6X5GT=VT-126B RCA black plates NOS 1943 (50-52/40 and 50-53/40) (Best Sound) (Audio Note, Mapletree)
5876A RCA NOS 1960's (2 in stock)
(!!!) (Good Value Pair) JHS-5687WA Sylvania used/very good 1960's faded printing (35.4/34.2ma and 37.0/36.5ma)
(!!!) (BEST PAIR) 5726=6AL5 RCA NOS 1970 era (47-48/40 and 47-47/40)
(slightly microphonic - good value) 5687 Raytheon black plates NOS "square" getter halo 1950's (37/39ma) (strong Ma and Gm)
(!!!) (Best Pair) JRC-5751 RCA NOS black plates double mica 1962 (2.7/2.3ma and 2.7/2.9ma) (similar to Command Series)
(!!) 6X4 RCA NOS 1969 (50/40 and 51/40)
(!!!!) (Single) 5691 RCA branded GE red base black plates NOS 1960's a few vertical scratches on base (2.1ma/2.3ma)
