(!!!) (Best Pair) 6AC7 RCA 1942-1945 used/test like new (13/14ma)
(!!!) (Best Pair) 6AG7 RCA NOS 1950-1951 (31.5ma and 32.0ma)
(!!!) (Best Pair) 6AH6WA GE NOS 1980's (10.5/10.3ma)
(!!!) (Best Pair) 6AH6WA GE NOS 1980's (10.6/11ma)
(!!!) (Best Pair) 6BM8=ECL82 Philips Holland made in Belgium NOS 1969 (1.8ma/31ma and 1.9/30ma) 1-2% matched
(!!!) (Best Pair) 6C4WA GE JAN NOS 1971-1973 (9.2/9.4ma) 1-3% matched (Conrad Johnson)
(!!!) (BEST PAIR) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (16.4/15.6ma and 14.7/14.6ma) (High Gm all 4 sections)
(!!!) (Best Pair) 6GK5=6FQ5A Matsushita Japan rebranded Raytheon NOS (12/13ma)
(!!!) (Best Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (12.0ma and 12.8ma)
(!!!) (Best Pair) 6SK7 GE NOS 1969 (9.0ma and 8.8ma)
(!!!) (Best Pair) 6SL7GT RCA NOS black plates gray coated glass 1959-1960 (2.2/2.3ma and 2.2/2.3ma)
(!!!) (Best Pair) 713A Western Electric by Tungsol NOS 1942-1943 (7.1ma and 7.0ma) (713A=717A with black base)
(!!!) (Best Pair) 864=VT-24 Hytron USA NOS 1940's (3.1ma and 3.1ma)
(!!!) (Best Pair) 864=VT-24 Hytron USA NOS 1940's (3.2ma and 3.2ma)
(!!!) (Best Pair) 864=VT-24 Hytron USA NOS 1940's (3.4ma and 3.4ma)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.8/1.9ma and 1.8/2.0ma)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.9/2.1ma and 2.1/2.1ma)
(!!!) (Best Pair) EF86 Telefunken Germany <> bottom NOS gray shield 1972 1% matched (3.2ma and 3.2ma) (Neumann, Lawson, Soundelux, Manley)
(!!!) (Best Pair) JAN-6384 Tungsol used/test like new 1967-1972 (68.5ma and 66ma)
(!!!) (BEST PAIR) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (13.4/14.5ma and 13.4/14.6ma) 1-2% matched