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(!!!!!) (Best Pair #1) 6L6GC RCA black plate NOS 1976 same date codes (68ma and 67.2ma) (Same Gm)
(!!!!) (Best Pair #1) 12AU7WA=6189 RT Radio Technique France NOS 1961 (9.4/9.0ma and 9.2/9.2ma) (close Gm) 1-3% matched
(!!!!) (Best Overall Pair) 12AX7A RCA gray ribbed plates NOS 1974 same date codes (best tone) (1.3/1.2ma and 1.3/1.1ma) (Fender, McIntosh, Rogue Audio
(!!!!!) (Best Overall Pair) 12AU7A RCA clear top NOS 1964-1965 good printing (10.2/12ma and 10.8/11.8) (close Gm)
(!!!!) (Best Pair #1) 6SN7GTB Sylvania chrome top NOS 1955-1956 (7.0ma/7.4ma and 7.8/7.6ma) (close Gm) (Schiit Freya, Rogue)
