(!!!!) (SINGLE) 12AU7A GE NOS 1972 copper grid posts (10.6/9.8ma) (warm and smooth)
(!!!!) (SINGLE) 12AU7A GE NOS 1976 copper grid posts (9.4/8.8ma)
(!!!) (2nd Best Single) 5965A GE "5 Star" NOS 1964 (19.2/14.6ma)
(!!!) (Best Pair #2) 5965 Sylvania NOS 1960's (16.6/18.2ma and 18.2/16.8ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (Best pair #3) 12AU7A GE NOS 1958-1965 (10/10.6 and 10/11.6ma) (close Gm)
(!!!) (Best Pair) 5965 Sylvania NOS 1960's (19.2/18.8ma and 19.6/18.0ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (Best Pair) 5965=12AV7 Westinghouse NOS 1960 (16/18ma and 16.8/19ma)
(!!!) (Best Pair) 6FQ7 GE NOS 1970's (9.8/8.8ma and 8.5/9.6ma) (close Gm)
(!!!) (Best Pair) 6FQ7 RCA clear top NOS "D" getter halo 1966-1969 (7.2/8.2ma and 8.0/7.8ma) (close Gm)
(!!!) (BEST PRICE) 12AU7A GE used/good 1969 - 1980 (4 for $29.99)
(!!!) (BEST PRICE) 12AU7A GE used/good 1971 - 1978 (4 for $29.99)
(!!!) (Best Single 1960) 5751 RCA black plates triple mica "D" getter low hours/tests like new 1960 (2.8ma/3.1ma)
(!!!) (Best Single) 12AU7A RCA clear top NOS 1973 (10.8/11ma) (same Gm) 1-2% section balance
(!!!) (Best Single) 5965A GE "5 Star" NOS 1964 (13.8/15ma)
(!!!) (Best Single) JAN-6C4WA GE NOS 1967-1968 (11.8ma)
(!!!) (Good Value Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (8ma and 8ma)
(!!!) (Good Value Single) 5751 RCA black plates triple mica "D" getter low hours/tests like new 1950's (2.4ma/2.5ma)
(!!!) (Recommended Pair) 12AU7A GE NOS 1965-1975 (8.8/8.8ma and 9.2/8.8ma) (Same Gm) (smooth and warm)
(!!!) (Recommended Pair) 6C4WA GE JAN and JG NOS 1965-1967 (8.4/8.8ma) 1-3% matched
(!!!) (Recommended Pair) 6C4WA GE JAN NOS 1971-1973 (8.8/9.0ma) 1-2% matched
