(!!!) (Best Single) 5751 GE 5 Star NOS 1975 (2.4/2.4ma) 1% section balance
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom used/good 1971 (6.4ma and 9.3ma)
12AU7A Sylvania NOS 1970's (10.6/9.2ma)
12AU7A Sylvania NOS 1960 era (11.6/10ma)
(!!) (Good Value Single) 12BH7A GE Daystrom gray oval plates low hours like new 1960's (9.2/9.0ma) (Same Gm)
