(!!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1955 and 1968 (91ma and 96ma) (these are some of the best sounding 6B4G ever made)
(!!!!) (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) 6L6GT=6n3C Russian NOS 1982 in white boxes (92/92/92.2/92.5ma)
(!!!!) (BEST RUSSIAN PAIR) 6L6GC=6n3CE Russian NOS 1990 coin/wafer base original boxes (61.5ma and 63ma) (Leben, Fender)
(!!!!) (Best Value Pair) 6B4G Raytheon NOS 1940's separate plates, 1 branded Philco (90ma and 91.5ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (100ma and 109ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (82ma and 83ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (86ma and 92ma)
(!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1958-1967 (79ma and 85ma) (one of the best sounding 6B4G ever made)
(!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1963-1969 (86ma and 88ma) (these are some of the best sounding 6B4G ever made)
(!!!!) (Recommended Pair) 6L6GT Russian branded Raytheon NOS 1970's in white boxes (69ma and 69.5ma)
(!!!!) (Recommended Pair) 6L6GT=6n3C Russian NOS 1982 in white boxes (74.6ma and 75.0ma)
(!!!!) (Recommended Pair) 6L6GT=6n3C Russian NOS 1982 in white boxes (76.2ma and 77ma)
(!!!!) (Single) 6L6GC=6n3CE Russian NOS 1990 coin/wafer base (75.6ma)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded Amperex NOS 1982 (14.0/15.2ma and 16.0/16.4ma)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded United and International NOS 1977-1980 (14.0/15.2ma and 16.0/16.4ma) (Highest ma and Gm)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded United and International NOS 1977-1980 (15.4/15.8ma and 14.4/16.0ma) (Highest ma and Gm)
(!!!) 6B4G Tungsol NOS 1940's (81ma)
