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(!!) (Best Pair #1) JHS-6AU6WB Sylvania NOS 1963-1968 (7.2ma and 7.2ma) (Sony C800G)
(!!) (Best Pair #2) JHS-6AU6WB Sylvania NOS 1964-1968 (6.4ma and 6.6ma)
(!!) (Best Pair) 6AU6A GE NOS 1977 (6.3ma and 6.3ma) (Sony C800G)
(!!) (Best Pair) 6AU6A GE NOS 1977 (6.4ma and 6.4ma) (Sony C800G)
(!!) (Best Pair) JHS-6AU6WB Sylvania NOS 1967-1968 (6.3ma and 6.6ma)
(!) (2nd Best Pair) JHS-6AU6WB Sylvania NOS 1963-1964 (6.0ma and 6.5ma)
6AU6 and 6AU6A Mixed Brands (USA / Canada / Japan) used/test good (10 tubes for $39.99)
6AU6A GE NOS 1977 (6.7ma) (Sony)
6AU6WB Sylvania NOS 1968 (6.4ma)
6AU6WB=6136 Sylvania branded Westinghouse NOS 1974 (7.2ma)
6AU6WC Sylvania NOS 1970-1980 (0 in stock)
6AU6WC=6136 GE NOS 1978-1979 (7.7ma)