(!!!!) (2nd Best Single) 6AS7G Tungsol black plates NOS 1954 smaller top getter (72ma/76ma)
(!!!!) (Best Single) 6AS7G Rauland by RCA black plates NOS 1957 (80ma/81.5ma) (same Gm)
(!!!!) (Best Single) 6AS7G Tungsol black plates NOS 1954 (73ma/74ma) 1% section balance
(!!!!) (Best Single) 6AS7G Westinghouse Reliatron by RCA black plates NOS 1953 (94.5ma/97ma) (highest mA and Gm)
