(!!!!!) (2nd Best Overall Pair) 6C10 GE rebranded RCA NOS 1960's 1-2% matched (Ampeg / Fender) (1.2ma/1.4ma/1.4ma) and (1.1ma/1.4ma/1.4ma) (2nd Best Pair in the World)
(!!!!!) (Best 5 Star Pair) 6021 GE 5 Star Rated NOS "D" getter halo 1957 in GE 5 Star Boxes (1-3% matched) (6.6/7.3ma and 6.8/7.0ma) (Highest Ma and Gm)
(!!!!!) (Best 5-Star Pair) 5687 GE "5-Star" NOS 1969 (29.5/32ma and 30.5/31ma) 1-3% matched
(!!!!!) (Best 6BZ7 Pair) 6BZ7 GE gray plates NOS 1964-1967 same build (10.8/11.4ma and 11.2/11.8ma) (Best 6BQ7A substitute)
(!!!!!) (Best 6DJ8 Pair) 6DJ8=ECC88 Philips Holland NOS 1975 (14.5/15.8ma and (14.2/16.0ma)
(!!!!!) (Best 6DJ8 Pair) 6DJ8=ECC88 Philips Holland NOS 1975 (17.0/18.5ma and (18.0/19.5ma) (Highest ma and Gm)
(!!!!!) (Best 6DJ8 Quad) ECC88=6DJ8 Philips Holland A Frame 1975 NOS in white boxes (matched quad)
(!!!!!) (Best Black Plate Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1800/1800) (1.4/1.4ma) 1% section balance
(!!!!!) (Best CV4004 Single) CV4004=12AX7 Brimar England NOS 1960's (Gm=1700/1800) (1.3/1.4ma)
(!!!!!) (BEST EL5 QUAD) EL5 Tungsram UK NOS 1947-1949 same build (79ma, 79.5ma, 81ma, 82ma)
(!!!!!) (Best GE Pair) 6550A GE NOS "stapled plates" 1980-1982 (150ma and 152.5ma)
(!!!!!) (Best GE Pair) 6BK7B GE gray plates NOS "U" getter 1960's (7.5/9.3ma and 7.6/8.9ma) (Best 6N1P and 6BQ7A sub)
(!!!!!) (BEST GE QUAD) 6SN7GTB GE rebranded Raytheon NOS 1970 era (closely matched)
(!!!!!) (Best GE Single) JAN-12AX7WA GE NOS 1967-1968 (Gm=1700/1800 and 1.5ma/1.6ma) (Highest Ma and Gm)
(!!!!!) (BEST GEC PAIR) 6V6G Haltron by GEC UK NOS coated glass NOS 1950's original boxes (46.5ma and 46.5ma) 1% matched
(!!!!!) (BEST HOLLAND PAIR) E88CC=6922 Philips SQ Holland 1968 (13.4/14.6ma and 13.3/15.4ma) (3D MIDS) 1-3% matched
(!!!!!) (Best Holland Single) 12AU7 Amperex Bugle Boy Holland NOS 1966 (10.2/10.7ma)
(!!!!!) (Best JAN Pair) JAN-6550A GE NOS "stapled plates" 1984-1985 (123ma and 124ma)
(!!!!!) (Best Long Plates Pair) ECC82=12AU7 Valvo Hamburg Germany NOS with 17MM "long gray ribbed plates" and "O" getter 1958 (9.0/10.3ma and 9.6/10.4ma) (1-3% matched) (low noise)
(!!!!!) (Best Long Plates Single) ECC82=12AU7 Valvo Hamburg Germany NOS with 17MM "long gray ribbed plates" and "O" getter 1958 (8.8/10.0ma)
