(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (28ma and 28.8ma) (same Gm) 1-3% matched
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (28ma and 28ma) 1-3% matched
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's branded National 1962 (25.8ma and 26.4ma) 1-3% matched (same Gm)
(!!!!!) (BEST PAIR) 12AU7=ECC82 Telefunken Germany smooth plates NOS 1961-1965 1-5% matched (10.5/12.0ma and 12.2/10.2ma)
(!!!!!) (Best Pair) 5670W GE NOS 1986 (8.4/9.4ma and 8.6/9.2ma) 1-3% matched
(!!!!!) (Best Pair) 5814A Philips JAN USA by Sylvania NOS 1985 (10/11ma and 9.5/10.5ma) 1-3% matched (same Gm)
(!!!!!) (BEST PAIR) 5U4G TUNGSOL NOS 1955 (57-59/40 and 55-58/40) (rare)
(!!!!!) (Best Pair) 5U4GB CBS NOS 1950's double "D" getters (59-59/40 and 58-60/40)
(!!!!!) (Best Pair) 6189W Sylvania NOS 1981 (9/10.2ma and 10/9ma) 1-3% matched (same Gm)
(!!!!!) (Best Pair) 6DJ8=ECC88 Philips Miniwatt Holland "o" getter halo NOS 1963-1964 (19.6/18.0ma and 17.0/20.0ma)
(!!!!!) (Best Pair) 6DJ8=ECC88 Philips Miniwatt Holland "o" getter halo NOS 1963-1964 (20.2/19.2ma and 22.2/20.0ma)
(!!!!!) (Best Pair) 6SN7GTB GE NOS 1971-1975 (8.0/8.0ma and 7.8/8.2ma) (Schiit Freya, Rogue) 1-3% matched
(!!!!!) (Best Pair) ECC803S=12AX7 Telefunken Ulm Germany <> bottom NOS 1961 (1.2/1.3ma and 1.2/1.4ma) 1-2% matched (Nagra, Lamm, VTL, Aesthetix, Diva)
(!!!!!) (BEST PAIR) JAN-6005W GE NOS 1980-1982 (56.5ma and 56.6ma)
(!!!!!) (Best Pair) JAN-6550A GE NOS "stapled plates" 1985-1986 (131.8ma and 132.2ma) 1-2% matched
(!!!!!) (Best Pair) JG-5751WA GE black plate triple mica U getter like new 1958 (2.3/2.3ma and 2.4/2.3ma)
(!!!!!) (Best Pair) JG-5751WA GE gray plates triple mica U getter like new 1955 (2.3/2.1ma and 2.2/2.1ma)
(!!!!!) (BEST PAIR) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (17.8/17.6ma and 18.0/18.8ma) (highest mA and Gm)
(!!!!!) (Best Quad #1) 6L6G MULLARD UK NOS 1955-1959 (67, 67, 67, 70ma)
(!!!!!) (Best Quad #2) 6L6G MULLARD UK NOS 1955 same date codes (63.6, 64, 64.6, 65.5ma) (closely matched Gm)
