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(!!!!) (Best GE Single #1) 6U8A GE NOS 1980 (18.4/10.6ma)
6K11=6Q11 GE NOS 1971 (86/60, 89/60, 85/60) (triple triode)
(!!!) (Single) 12AU7=ECC82 Telefunken Germany <> bottom ribbed plates like new 1959 (9.6ma/11.8ma)
(!!!!) (Best GE Single #2) 6U8A GE NOS "U" getter 1961 (17/9ma)
(!!!!) (BEST GE PAIR #2) 5687WB GE NOS rebranded CK-5687WB Raytheon black plates with hint of bronze 1970's (Audio Note, Manley, Modwright, Audion) (36.8/37.4ma and 36.6/35.8ma)
(!!!) (Best Raytheon Pair #3) CK-5687WB Raytheon black plates NOS 1970's (Audio Note, Manley, Modwright) (35/37ma and 35.5/38ma) 1-3% matched (Highest Gm) (Manley, Modwright, Audio Note)
6SC7 GE NOS 1970 era (1.6/1.7ma) 1-2% section balance
(!!) (Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.5/6.5ma and 6.8/6.7ma) 1-3% matched
ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.2/6.9ma)
5718 GE NOS 1970's branded United 1984 (4 in stock)
(!!!) (Best Value Single) 12AX7 Baldwin Sylvania "D" getter used/tests like new 1959 (2.1/2.0ma) (Highest mA and Gm) 1-2% section balance
(!!!) (Best Pair) 12BA6 Westinghouse NOS 1960 era (9.8ma / 10.4ma)
12BA6 Westinghouse NOS 1951 (10.4ma)
(!!!!!) (Best Single 1953) GL-6072 GE 5 star triple mica black plates "D" getter halo 1953 like new (2.3/2.2ma) (V1 guitar amp, mics, Audio Note) 1-2% section balance
(!!!) (Best Value) 12AU7=ECC82 Daystrom Mullard UK ribbed plates like new 1963 (9.0/10.2ma) (162 series) (smooth presentattion)
(!!!!) (Best Overall Single) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1970 good printing (11.6ma and 11.5ma) (same Gm) 1-2% section balance
(!!!!) (Best Single #2) 6SN7GTB RCA NOS 1957-1958 (8.8/9.6ma)
(!!!) (Best Pair #2) ECL82=6BM8 Mullard UK branded Mazda NOS 1970's (2.0/36ma and 2.0/35ma) 1-2% matched
(!!!) (Best Pair #3) ECL82=6BM8 Mullard UK branded Mazda NOS 1970's (2.2/34ma and 2.0/33ma) 1-3% matched
(!!!!) (Best Single) JAN-CHS-6SL7WGT Sylvania brown base round black plates "D" getter NOS 1959 (2.6/2.6ma) 1% section balance (Highest mA and Gm)
