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(!!!!) (Recommended Single) JAN-CRC-6AS7G RCA black plates clear top like new 1951 (75ma/77ma)
(!!!) (Best Pair #1) 5998A Sylvania JAN NOS 1980 (127/134ma and 123/136ma) (5998A=7236)
(!!!) (Best Single #2) 6AS7G RCA branded GE clear top black plates like new 1950 (84/74ma)
(!!!) (Best Single #3) 5998A Sylvania JAN NOS 1980 (124/119mA)
(!!!) (Best Single) 6AS7G RCA branded GE clear top black plates like new 1950 (83.5/93.2ma)
(!!!) (Best Value Pair) 5998A Sylvania JAN NOS 1980 (111/123ma and 112/119ma) (5998A=7236) 1-3% matched
(!!!) (Best Value Single) 5998A Sylvania JAN NOS 1980 (109/136mA)
(!!!) (PAIR) 5998A Sylvania JAN NOS 1980 (118/131ma and 121/130ma) (5998A=7236) 1-3% matched
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (124/130mA)
(!!!) (Single 1948) 6AS7G RCA branded GE clear top black plates used/strong 1948 (118/87ma) (oldest single)
(!!!) (Single) 5998A Sylvania JAN NOS 1980 (141/122mA) (close Gm)
(!!!) (Single) 6AS7G RCA branded GE black plates used/good 1953 (114/75ma)
(!!!) (Single) 6AS7G RCA branded GE clear top black plates used/good 1950 (64/65ma)
(!!) (Best Value) 6AS7G RCA branded GE black plates used/tests like new 1954, base rattle, slight glass tilt, small stain on glass (108ma/122ma) (highest mA and Gm)
(!!) (Single) 6AS7G RCA branded GE black plates used/good 1952 (51ma/58.5ma)
(!!) 6AS7G Russian branded National NOS 1990's (50ma/86ma)
(!!) 6AS7G Russian branded National NOS 1990's (51ma/77ma)
(!) (Best Single) 6AS7GA GE NOS 1962 (138ma and 144ma)
(READ REVIEW) 5998A Sylvania JAN NOS 1980 (121/118.5ma and 124/112ma) (5998A=7236)
6AS7GA GE black plates NOS 1963 (107ma and 84ma)
