(!!!) (Best Single 1953) 6BX7GT Philco by Sylvania "D" getter halo 1953 (56/63ma)
(!!!) (Best Single 1953) 6BX7GT Raytheon by GE "D" getter halo 1953 (58/68ma)
(!!!) (Best Single 1956) 6BX7GT GE "D" getter NOS 1956 (53ma/50ma)
(!!!) (Best Single 1961) ECC82=12AU7 Miniwatt Holland NOS 1961 (9.8/9.2ma)
(!!!) (Best Single 1967) ECC82=12AU7 Philips Holland NOS 1967 (11.2/10.6ma) (same Gm)
(!!!) (Best Single) 12AX7A Sylvania NOS 1960's (Gm=2600/2400)
(!!!) (Best Single) 310A Western Electric large punch plate low hours/tests like new 1962 (6.5ma) (highest mA and Gm)
(!!!) (Best Single) 6094 Cetron NOS 1972 (Tungsol clone) (61ma) (last series made)
(!!!) (Best Single) 6922 Amperex PQ USA 1967 NOS (13.6ma/16.8ma)
(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)
(!!!) (Best Single) EL84 Brimar England NOS 1962 (58.2ma)
(!!!) (Best Single) JAN-6094 Tungsol NOS 1968 made on Bendix tooling (63ma)
(!!!) (Best Single) JAN-CEA-6094 Bendix like new 1956 (61ma) (1st series)
(!!!) (Best Single) JEA-6094 Bendix used/good 1961 (47.5ma)
(!!!) (Best Single) JEA-6094 Bendix used/good 1961 (52ma)
(!!!) (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched
(!!!) (Best Value Single) 12AX7=ECC83 FISHER HOLLAND large "O" getter halo 1960 used/good (Gm=1550/1600 and .9/1.0ma)
(!!!) (Best Value Single) 12AX7=ECC83 FISHER HOLLAND large "O" getter halo 1961 used/good (Gm=1500/1600 and .9/.9ma)
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1961 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (10.8/13.4mA) (PREMIUM 6BL8 SUB) (Tuners)
