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(!!!!) (Best Pair #1) E80CC=6085 Philips and RTC Holland gold pins NOS 1961-1972 (6.3/6.8ma and 6.1/6.9ma) 1-3% matched
(!!!!) (Best Pair #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1964-1967 1-2% matched (10.4/1.6ma and 10.2/10.4ma) (same Gm) (best sound)
(!!!!) (Best Pair #1) ECC81=12AT7 Mullard UK NOS 1968-1970 (9.4/11.2ma and 9.8/11.2ma) 1-3% matched (sweet sound)
(!!!!) (Best Pair #1) ECL82=6BM8 Mullard UK branded Mazda NOS 1970's (2.2/34ma and 2.0/33ma) 1-3% matched
(!!!!) (Best Pair #1) EF804S Telefunken Germany <> bottom gray shield NOS 1961 (3.8/3.9ma)
(!!!!) (Best Pair #1) EL34 Mullard UK branded Mullartd and Philips NOS XF4 1976-1977 (96.0ma and 94.5ma) (very close Gm matching)
(!!!!) (Best Pair #1) EL34 Mullard UK branded Mullartd and Philips NOS XF4 1976-1979 (99.5ma and 98.2ma) (close Gm matching)
(!!!!) (BEST PAIR #1) EL84 Siemens Halske Germany NOS 1977 (46.5ma and 46ma)
(!!!!) (Best Pair #1) JAN-5842WA Raytheon NOS 1984 original boxes (28ma and 30ma) 1-5% matched
(!!!!) (BEST PAIR #1) JAN-6005W GE NOS 1981 (47.8ma and 48.5ma) 1-3% matched
(!!!!) (Best Pair #2) 01A RCA Cunningham engraved base NOS 1930's (3.3ma and 3.2ma) (same Gm)
(!!!!) (Best Pair #2) 12AU7A Amperex and Philips by Mullard UK NOS ribbed plates 1974 (10.6/11.6ma and 10.4/11.2ma) (DAC, linestage)
(!!!!) (Best Pair #2) 5670W GE NOS 1986 (9.4/11ma and 9.8/11.6ma) 1-5% matched (Highest Ma and Gm)
(!!!!) (Best Pair #2) 5814A Philips JAN NOS 1985 (10.5/8.2ma and 10/8.3ma) (close Gm)
(!!!!) (Best Pair #2) 5842Q Raytheon NOS 1983 (23ma and 24ma) 1-3% matched
(!!!!) (BEST PAIR #2) 6201=12AT7WC GE "5 STAR" NOS double mica, copper grid posts, gray plates, 1972 (7.2/8.6ma and 8.6/8.2ma)
(!!!!) (Best Pair #2) 6973 RCA NOS NOS 1969 (45.5ma and 49.6ma)
(!!!!) (Best Pair #2) 6BQ5 GE NOS 1966-1980 same build (58.5ma and 60ma)
(!!!!) (Best Pair #2) 6BX7GT Sylvania triple mica "D" getter NOS 1950's (52.2/47ma and 48/44ma)
(!!!!) (Best Pair #2) 6BX7GT Sylvania triple mica "D" getter NOS 1950's (60/55ma and 52/54ma)
