(!!!) (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
(!!!) (PAIR) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.2ma and 7.2ma)
(!!!) (Recommended Pair) EL84 Telefunken Germany <> bottom used/test like new 1961 and 1969 (47ma and 48.5ma)
(!!!) (Recommended Siemens Single) ECC81=12AT7 Siemens branded Mullard NOS circa 1970 (10.0/10.8ma)
(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (7ma/11ma) (recommended for mic)
(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (9ma/6.5ma) (recommended for mic)
(!!!) (Recommended Single) 12AT7 Telefunken Germany <> bottom NOS 1963 (8.6ma/8.0ma)
(!!!) (Recommended Single) EC92=6AB4 Siemens Halske NOS 1967 (9.2ma)
(!!!) (Recommended Single) EF94=6AU6 Tungsol used/tests like new 1957 (10ma)
(!!!) (Recommended Single) EZ80 Mullard France NOS "O" getter halo 1970 (62/40 and 64/40)
(!!!) (Single) EC92=6AB4 Siemens Halske Germany branded Philips Miniwatt NOS 1965 (9ma)
(!!!) (Single) ECC81=12AT7 Telefunken Germany <> bottom NOS 1963 (6.8ma/7.6ma) (recommended for mic)
(!!!) (SINGLE) ECC81=12AT7 Telefunken Germany <> bottom NOS 1965 (10.6ma/9.2ma)
(!!!) (Single) ECC85 Siemens Germany NOS 1962 (9.5/8.2ma)
(!!!) (Single) ECL82=6BM8 Adzam Holland NOS 1968 (2.3/39ma)
(!!!) (slightly microphonic single) ECC801S Telefunken <> bottom rebranded 12AT7/ECC81 Telefunken NOS 1962 (9.2ma/10.2ma)
(!!!) 6U8A Raytheon black plates NOS "U" getter halo 1962 (17ma and 8ma)
(!!) (Best Mullard Pair) EZ80=6V4 Mullard La Radiotechnique Chartres plant France NOS "O" getter halo 1970 (63-64/40 x 2 tubes) 1% matched
