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(!!!!) (Best Quad #2) 6L6GT Russian branded Raytheon NOS 1970's in white boxes (68/67.5/69/70ma)
(!!!!) (Best Quad) 6L6GT=6n3C Russian NOS 1982 in white boxes (64.5/65.6/65/66.5ma)
(!!!!) (Best Quad) 6L6GT=6n3C Russian NOS 1982 in white boxes (66.2/67.2/67.0/68.2ma)
(!!!!) (Best Quad) 6L6GT=6n3C Russian NOS 1982 in white boxes (70/70.5/71.6/72.0)
(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1970's (95.5, 96, 98, 99.6ma)
(!!!!) (Best Siemens Pair) EL84 Siemens Halske Germany used/test like new 1971 (48.2ma and 48.5ma) (High Gm)
(!!!!) (Best Single #1) 5881 Tungsol branded CBS NOS 1961 (88ma)
(!!!!) (Best Single #2) 6146B GE NOS 1981 (107ma)
(!!!!) (Best Single #3) 6146B GE NOS 1979 (98ma)
(!!!!) (Best Single #3) 7581A GE NOS 1979 (76ma)
(!!!!) (Best Single) 6146B GE NOS 1980 (121ma)
(!!!!) (Best Single) 6550 Tungsol branded RCA NOS vented plate NOS 1965 (130ma) (Recommended for Audio Research Ref power supply)
(!!!!) (Best Single) 6L6GC RCA black plate NOS 1962 (88ma)
(!!!!) (Best Single) 6V6GTA RCA NOS 1969 (47.8ma)
(!!!!) (Best Single) 6V6GTA Sylvania NOS 1960 era (42ma)
(!!!!) (Best Single) 8068 GE NOS 1983 slightly tilted glass (47.5ma)
(!!!!) (Best Single) CX-345 Cunningham Balloon used/tests like new 1930 era (41ma)
(!!!!) (Best Single) JAN-5998 Tungsol NOS black plates NOS 1966 same build as 421A Western Electric (87ma/73ma)
(!!!!) (Best Tungsol Single) 6V6GT Tungsol gray plate/coated glass NOS 1945 era - some surface oxidation on metal can (45.5ma)
(!!!!) (Best Value Like New Pair) 6550C Winged C SED Russain low hours/test like new 2011 faded printing (132ma and 136ma) (strong Gm) **
