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(!) (Best Single) 12AT6 Sylvania NOS 1960 era (87/60)
(!) (Best Single) 12AV7 Sylvania NOS 1960's (19.6/19.2ma)
(!) (Best Single) 12SF5GT National Union NOS 1950 (2.1ma Gm=1600)
(!) (Best Single) 37 GE ribbed plate NOS 1943 (8.0ma)
(!) (Best Single) 6111 France NOS 1962 (7.0/7.4ma) (close triode balance)
(!) (BEST SINGLE) 6BA6 Brimar England NOS 1960's (10.8ma)
(!) (Best Single) 6BR8A RCA NOS 1959 (16.6/10.8ma)
(!) (Best Single) 6GK5=6FQ5A RCA NOS 1960's (13.6ma)
(!) (Best Single) 6GK5=6FQ5A Sylvania branded Raytheon NOS (15.2ma)
(!) (BEST SINGLE) 6JB6 Sylvania branded RCA NOS 1970's (81ma)
(!) (BEST SINGLE) 6JB6A RCA NOS 1970 era (100ma)
(!) (Best Single) 6JT8 GE branded RCA NOS (2.1/26.4ma)
(!) (Best Single) 6JT8 GE NOS (1.1/27.2ma)
(!) (Best Single) 6JT8 GE NOS (1.5/23ma)
(!) (Best Single) 6JT8 GE NOS (2.1/27ma)
(!) (Best Single) JAN-6AH6WA Sylvania NOS 1968 (11ma)
(!) (Best Single) JAN-6AH6WA Sylvania NOS 1969 (13ma) (Highest mA and Gm)
(!) (Best Value) 7025A=12AX7A China branded International Yugo NOS 1990's (1.0/0.9ma and Gm=1700/1600)
(!) (Good Value Pair) 6SF5 RCA used/good 1948 Pair (0.8ma and 0.8ma)
(!) (Pair) 12AU6 RCA NOS 1973 (10.6ma and 10.0ma)
