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(!!!!) (Best Single) 6AS7G RCA gray plates NOS 1961 (85ma/123ma)
(!!!!) (Recommended Single) JAN-CRC-6AS7G RCA black plates NOS 1953 reboxed (65ma/85ma)
(!!!) (Best Overall Single) 5998A Sylvania JAN NOS 1980 (123.6/122.4mA) 1-2% section balance
(!!!) (Best Pair #2) 5998A Sylvania JAN NOS 1980 (127/134ma and 123/136ma) (5998A=7236)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (124/126ma and 126/122ma) (5998A=7236)
(!!!) (Best Single #3) 5998A Sylvania JAN NOS 1980 (124/119mA)
(!!!) (Best Single) 5998A Sylvania JAN NOS 1980 (127/135mA) (close Gm)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (112/119mA)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (124/130mA)
(!!!) (Single) 5998A Sylvania JAN NOS 1980 (121/130mA)
(!!) 6AS7G Russian branded National NOS 1990's (50ma/86ma)
(!!) 6AS7G Russian branded National NOS 1990's (51ma/77ma)
(!!) 6AS7G Russian branded National NOS 1990's (62ma/65ma)
(!) (Best Single) 6AS7GA GE NOS 1962 (138ma and 144ma)
6AS7GA GE black plates NOS 1963 (107ma and 84ma)
6AS7GA GE NOS 1970 era (77ma and 82ma)
6AS7GA GE NOS 1979 (105ma and 126ma)
6AS7GA Sylvania branded RCA NOS 1983 (100ma and 125ma)
6AS7GA Sylvania metal base NOS 1960's (77/87ma)
JAN-6AS7G RCA gray plates used/good 1960 (82ma/62ma)
