(!!!) (Best Mullard Pair) EZ80=6V4 Mullard La Radiotechnique Chartres plant France NOS "O" getter halo 1970 (64-64/40 x 2 tubes) 1% matched
(!!!) (Best Mullard Single) ECF80=6BL8 IEC Mullard UK NOS 1966 (16ma/12ma) (Highest mA and Gm)
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1964-1965 (11.4ma and 11.8ma)
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (10.2ma and 10.6ma) 1-5% matched
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (10.8ma and 11.2ma) 1-3% matched
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (11.2ma and 11.6ma) 1-3% matched
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (12.0ma and 12.4ma)
(!!!) (Best Pair) EF86 Telefunken Germany <> bottom NOS gray shield 1972 1% matched (3.2ma and 3.2ma) (Neumann, Lawson, Soundelux, Manley)
(!!!) (Best Siemens Pair) EL84 Siemens Halske Germany 1966-1969 (40ma and 42.5ma)
(!!!) (Best Single EC86) EC86 Telefunken gold pins NOS 1964 (13ma)
(!!!) (Best Single) 6U8A GE Motorola NOS 1977 (15.2ma/9ma)
(!!!) (Best Single) 6U8A GE NOS 1961 (17ma/9.6ma)
(!!!) (Best Single) EC92=6AB4 Siemens Halske Germany branded Mullard NOS 1964 (10ma)
(!!!) (Best Single) EZ80 Mullard France NOS "O" getter halo 1970 (64/40 and 64/40)
(!!!) (Best used single) 12AT7 Telefunken Diamond Bottom used/good 1960's (10.0ma/10.8ma)
(!!!) (Best Value Pair) 6BL8 Motorola Golden JAPAN by Toshiba "Premium Rated" NOS 1974 (1 pair)
(!!!) (Best Value Single) 12AU7=ECC82 Telefunken smooth plates like new 1963 (10/8.4ma)
(!!!) (Best Value Single) 12AX7 Fisher Telefunken ribbed plate used/good 1960 era fair printing (Gm=1400/1600 and 0.9/1.1ma)
(!!!) (PAIR) EF184 Mullard branded Philips NOS 1964-1965 (8.0ma and 8.2ma) 1-3% matched