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(!!!!!) (Best Sylvania Pair) 6L6GC Sylvania TALL BOTTLE NOS 1970's (79ma and 80ma) 1-3% matched
(!!!!) (Best Overall Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.5/5.2ma and 63/63.5ma) 1-3% matched
(!!!!) (Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.5/5.2ma and 52/56ma)
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (4.9/4.6ma and 42/43ma)
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1971 (5.3/5.4ma and 58/55ma)
(!!!!) (Recommended Pair) 6L6GC Sylvania NOS 1960's - 1970 (63ma and 65ma)
(!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1971 (4.9/5.2ma and 59/56ma)
(!!) (Best Single #2) 6EW7 Sylvania BIG BOTTLE NOS 1960's (5.3/46ma) (highest Ma and Gm)
(!!) (Best Single) 6EW7 Sylvania BIG BOTTLE NOS 1960's (7.8/56ma) (highest Ma and Gm)
(!!) 6EW7 GE PHILCO BIG BOTTLE black plates NOS 1964 (4.8/62ma)
(!!) 6EW7 Sylvania BIG BOTTLE branded GE NOS 1960's (3.5/36.5ma)
(!) (#2 6EW7 Single Tube) 6EW7 GE Japan BIG BOTTLE NOS 1960's (5.0/37ma)
6EW7 Daystrom by RCA BIG BOTTLE used/70-80% 1960's (4.5/32ma)
6EW7 RCA BIG BOTTLE black plates NOS 1961 era (5.4/42ma)
6EW7 RCA BIG BOTTLE NOS 1960's (5.6/36ma)
6L6GC Sylvania clear top NOS 1960's copper grid posts (68ma)
