(!!!!) (2nd Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.8ma and 6.9ma) (Same Gm)
(!!!!) (3rd Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.5ma and 6.5ma) 1% matched
(!!!!) (Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (7.1ma and 7.1ma) 1-2% matched
(!!!!) (Recommended Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.3ma and 6.3ma) 1% matched
(!!!) (Recommended Single) EF94=6AU6 IEC Mullard England NOS 1963 (5.5ma)
(!!!) (Recommended Single) EF94=6AU6 Mullard England NOS 1963 (6.5ma)
(!!!) (Recommended Single) EF94=6AU6 Tungsol used/tests like new 1957 (10ma)
6DH3
