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(!!!!!) (BEST VALUE PAIR #1) 6SN7GTB GE coin-base NOS 1980 same date codes (7.4/7.6ma and 7.8/7.6ma) (same Gm) (Schiit Freya, Rogue)
(!!!!!) (BEST VALUE PAIR #1) 6SN7GTB GE NOS 1963 same date codes (6.0/6.2ma and 6.0/6.3ma) (same Gm) 1% matched (Schiit Freya, Rogue)
(!!!!!) (BEST VALUE PAIR #2) 6SN7GTB GE coin-base NOS 1979 (9.2/10ma and 8.8/9.0ma) (close Gm) (Schiit Freya, Rogue)
(!!!!!) (BEST VALUE PAIR #3) 6SN7GTB GE coin-base NOS 1979 same date codes (8.4/8.2ma and 7.4/7.4ma) (Schiit Freya, Rogue)
(!!!!) (Best Overall Pair) 6146B Sylvania and Sylvania Amperex NOS 1970's same build (111ma and 116.5ma) (close Gm)
(!!!) FAA-6X4WA Sylvania NOS 1965 (55/40 and 57/40)
