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(!!) (Best Pair) 6A7G Marconi Radiotron Canada NOS 1950 era
(!!) (BEST PAIR) 6AE5GT Tungsol branded Delco NOS 1940's (8.5ma and 8.0ma)
(!!) (Best Pair) 6AF4 RCA NOS 1970's (23.5ma and 23.8ma)
(!!) (Best Pair) 6AG7 RCA NOS 1960's (27ma and 27.5ma)
(!!) (Best Pair) 6BA7 Raytheon NOS large "D" getter mid-1950's (66/40 and 66/40)
(!!) (BEST PAIR) 6CS7 GE Canada black plates NOS 1964-1970 (20/11ma and 20.6/10ma)
(!!) (Best Pair) 6CW4 Sylvania NOS 1960's (120/60 and 120/60)
(!!) (BEST PAIR) 6EU7 GE NOS 1970-1978 (46-47/32 and 47-47/32) 1-2% matched
(!!) (Best Pair) 6GJ7=ECF801 Dumont Japan NOS 1970's (80-81/60 and 80-81/60) 1-2% matched
(!!) (Best Pair) 6GJ7=ECF801 GE USA NOS 1960's - 1970's (82-86/60 and 82-85/60)
(!!) (Best Pair) 6GK5=6FQ5A Hitachi Japan rebranded Raytheon and GE NOS 1970 era (9.6/10ma)
(!!) (Best Pair) 6J6A Tungsol NOS "D" getter 1961 (9.4/10.5ma and 9.0/11.4ma)
(!!) (Best Pair) 6SH7 GE metal can NOS 1976 (11.5ma and 11.6ma) **
(!!) (BEST PRICE) 12AU6 US Brands NOS (10 tubes for $29.99)
(!!) (BEST PRICE) 6SR7 US Brands metal can NOS (4 tubes for $14.99)
(!!) (Best Quad #2) 6SH7 GE metal can NOS 1976 (8.6, 9, 9, 9mA)
(!!) (Best Single #2) 6111 France NOS 1962 (8.0/7.0ma)
(!!) (Best Single #2) 6EW7 Sylvania BIG BOTTLE NOS 1960's (5.3/46ma) (highest Ma and Gm)
(!!) (Best Single #2) EC86 Telefunken Germany <> bottom 1961 (10.3ma)
(!!) (Best Single #3) 6EW7 Sylvania BIG BOTTLE NOS 1960's (3.8/49ma)