(!!!!!) (Good Value Single) 45 Sylvania branded RCA NOS 1952 stains on glass (47ma)
(!!!!!) (Recommended Pair) 336A Western Electric NOS 1956 (39ma and 42ma) (matched on Amplitrex)
(!!!!!) (Recommended Pair) 45 RCA and Cunningham used/good (29ma and 33ma) 1-3% matched
(!!!!!) (Recommended Pair) 5881 GE Canada NOS 1966-1967 (65.2ma and 68.5ma) (same build as Tungsol)
(!!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1955 and 1968 (91ma and 96ma) (these are some of the best sounding 6B4G ever made)
(!!!!!) (Recommended Pair) 6V6GT Mullard UK gray plate NOS 1960 era (41.5ma and 42.8ma)
(!!!!!) (Recommended Pair) 6V6GT Mullard UK NOS 1960 era (44ma and 46.2ma)
(!!!!!) (Recommended Single) KT88 GEC UK used/tests like new 1960's (137.6ma, Gm=10,800)
(!!!!!) (Recommended XF2 Pair) EL34 Mullard UK XF2 single halo "O" NOS 1970-1973 (85ma and 90.5ma)
(!!!!!) (Single) 6V6GT Ken Rad coated glass NOS 1940's (40.5ma)
(!!!!) (2nd Best Single) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.1/36.5ma)
(!!!!) (Best 6094 Quad) JAN-CEA-6094 Bendix gold pins NOS 1957 (55/57/57/58ma)
(!!!!) (Best 6V6GTA Single) 6V6GTA RCA NOS 1971 (45.6ma)
(!!!!) (Best Overall Pair) 6550 Tungsol gray plates NOS 1975 (139ma and 140.5ma)
(!!!!) (Best Overall Pair) 6L6G RCA black plate coated glass used/test like new 1944 (69.5ma and 71.2ma) (close Gm)
(!!!!) (Best Overall Pair) 6L6G=VT-115A RCA black plate coated glass NOS mid-1940's (81ma and 82.8ma) (rare) (same Gm)
(!!!!) (BEST OVERALL Pair) 8068 GE NOS 1983 (46ma and 46ma)
(!!!!) (Best Overall Pair) EL34 Mullard branded Philips NOS XF4 1979 (85ma and 85.5ma)
(!!!!) (Best Overall Pair) JAN-6528A Raytheon NOS 1978 (132/138ma and 143/144ma)
(!!!!) (Best Overall Single) 50 RCA Cunningham engraved base NOS ST-19 around 1940 (61.5ma) (strong Ma and Gm)