(!!!!!) (Best Overall Single) 6SC7GTY Tungsol NOS black round plates NOS 1950 era - small chip out of base (2.1ma and 2.2ma)
(!!!) (Good Value Pair) 6SC7 GE metal can NOS 1977 (1.6/1.9ma and 1.6/1.9ma) 1% matched
(!!!) (Recommended Pair) 6SC7 GE metal can NOS 1969-1977 (1.7/1.9ma and 1.6/1.8ma) (same Gm)
(!!!) (Recommended Pair) 6SC7 GE metal can NOS 1977 (1.7/1.7ma and 1.7/1.8ma) 1-2% matched
(!!!) (Recommended Pair) 6SC7 GE NOS 1977 (1.7/2.1ma and 1.8/2.1ma) 1-3% matched
(!!) 12AT7 Knight by Mullard NOS 1966 (8.8/9.4ma)
26 Knight by Sylvania ST-14 used/like new 1940's (6.4ma)
6SC7 RCA NOS 1959 (1.8/1.7ma)
6SC7 RCA NOS 1959 (2.3/2.0ma)
6SC7=VT-105 Ken Rad used/good 1946 (1.8/1.9ma)
6SC7=VT-105 RCA used/good 1940's (1.4/1.5ma)
6SC7=VT-105 RCA used/good 1940's (1.6/1.7ma)
