(!!!!!) (Best Overall Single) 6SC7GTY Tungsol NOS black round plates NOS 1950 era - small chip out of base (2.1ma and 2.2ma)
(!!!!!) (Best Pair) 6V6GTA Sylvania coated glass NOS 1950's (50ma and 53ma)
(!!!!!) (Single) 6V6GT Ken Rad coated glass NOS 1940's (40.5ma)
(!!!!) (Best Pair) 1L6 Sylvania NOS 1950 same date codes (20/16 and 19/16)
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1953 (1.1ma and 1.2ma)
(!!!!) (Recommended Single) VT-231=6SN7GT RCA used/very good gray coated glass copper grid posts 1940's (8.4/8.2ma) 1-2% section balance
(!!!) (Best Pair) 6SL7GT RCA NOS black plates gray coated glass 1959-1960 (2.2/2.3ma and 2.2/2.3ma)
(!!!) (BEST PAIR) 7AF7 Sylvania NOS gray round plates NOS 1950-1958 (8.5/8.7ma and 9.2/9.2ma) 1-5% matched (same Gm)
(!!!) (Recommended Single) 5881 Tungsol rebranded Sylvania 1960 era (77.5ma)
(!!) (Best Pair) 12J5GT RCA branded Zenith NOS 1944 (10.2ma and 10.2ma)
(!!) (Best Single) 7AF7 Sylvania branded Hytron NOS round black plates NOS 1952 (9.6/9.4ma) 1-3% section balance
(!!) (Good Value Single) JAN-CG-6SN7GT GE NOS 1953 (9.6/8.5ma)
(!!) (SINGLE) 5Z3G RCA NOS 1957 (10 in stock) (special price)
(!!) (Single) 6F8G Ken Rad staggered ribbed black plates like new 1940's (10/11ma)
(!!) (single) 6SL7GT RCA NOS black plates gray coated glass 1959 (2.0/1.7ma)
(!!) (slightly microphonic pair) JAN-6SL7GT=VT-229 RCA NOS and like new 1940's (2.5/2.4ma and 2.4/2.6ma) 1-3% matched
(!!) (slightly microphonic) 6SL7GT RCA NOS 1950 (2.2/2.3ma) 1-2% section balance
(!!) 6BL7GTA GE NOS "D" getter 1958 (43ma/53ma)
(!!) 6K6GT Channel Master Japan 1960's (50ma)
(!!) 6K6GT Sylvania NOS 1970 era (42.5ma)
