(!!!!) (Pair) JAN-6C4WA Sylvania NOS 1975 (7.8ma and 8.6ma)
(!!!!) (Recommended GE Pair) 6FQ7 Zenith by GE NOS 1977 1-3% matched (7.0/7.6m and 6.8/7.5ma)
(!!!!) (Recommended Pair) 6FQ7 Zenith by GE NOS 1977 (6.2/8.0ma and 6.0/8.4ma)
(!!!!) (Recommended Pair) 6FQ7 Zenith by GE NOS 1977 (6.5/10.6ma and 6.7/9.2ma)
(!!!!) (Single) 6CG7 Tungsol used/good 1960 era black shield between plates (7ma/7ma)
(!!!) (3rd Best Pair) 5965 Sylvania NOS 1960's (17.4.0/16.0ma and 17.4/16.8ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (Best Overall Pair) 5965A GE "5 Star" NOS 1960's (15.5/17.0ma and 15.6/17.6ma)
(!!!) (Best Overall Pair) 6FQ7 RCA clear top NOS 1964-1966 (8.8/9.4ma and 8.2/9.4ma) (STAX, MARANTZ, CONRAD JOHNSON)
(!!!) (Best Pair #2) 5965 Sylvania NOS 1960's (16.6/18.2ma and 18.2/16.8ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (Best Pair #2) 6FQ7 RCA clear top NOS "D" getter halo 1966-1969 (7.6/8.0ma and 7.5/7.8ma) (same Gm) 1-3% matched
(!!!) (Best Pair #3) 6FQ7 RCA clear top NOS "D" getter halo 1965-1966 (7.4/7.6ma and 7.0/7.8ma) (same Gm)
(!!!) (Best Pair) 5965 Sylvania NOS 1960's (17.0/18.2ma and 17.0/16.6ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (Best Pair) 5965 Sylvania NOS 1960's (19.2/18.8ma and 19.6/18.0ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (Best Pair) 6C4WA GE JAN NOS 1971-1973 (9.2/9.4ma) 1-3% matched (Conrad Johnson)
(!!!) (Best Pair) 6CG7 Tungsol NOS black shield between plates, large "O" getter halo 1960 era (8.5/8.6ma and 8.6/8.7ma) 1-2% section balance
(!!!) (Best Pair) 6GK5=6FQ5A Matsushita Japan rebranded Raytheon NOS (12/13ma)
(!!!) (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)
