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(!!) (Good Value) 6922 Amperex USA branded Beckman used/70% 1962 (9.2/8.6ma)
(!!) (Recommended Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (17ma and 18ma) (Highest mA and Gm)
(!!) (Recommended Single) 5814A=12AU7 Hyperlec Brive France (Holland clone) NOS 1970's rebranded National (11.8/12.2ma)
(!!) (Recommended Single) 6U8A GE Amperex NOS 1974 (13.5ma/10.2ma)
(!!) (SINGLE 1953) 12BH7 GE NOS gray oval plates "U" getter 1953 NOS (9/12ma)
(!!) (Single) E810F=7788 Philips Miniwatt SQ Holland gold pins low hours/tests like new 1965 (37.2ma) (Allnic)
(!!) 12AT7=ECC81 Mullard UK "D" getter used/good 1960 (6.8/7.5ma)
(!!) 12AU7A Toshiba Japan branded Raytheon ribbed plates NOS 1960's (12/11.2ma) (Same Gm)
(!) (- Best Value) JAN-5847A=404A Amperex USA NOS 1988 (23ma and 24ma)
(!) (0 Pair) 25E5=PL36 GE Japan NOS 1970 (91-92/60)
(!) (Best Single) 7247=12DW7 Amperex Globe Logo by Matsushita Japan NOS 1967 similar sound to Mullard (1.5ma and 11.6ma) (High mA and Gm)
(!) (Good Value) 12AX7WXT Sovtek NOS 1990's (Gm=1500/1400 and 0.9/0.8ma)
(!) (microphonic single tube) E182CC=7119 Philips SQ Holland NOS "O" getter halo 1963 (39.0ma/39.2ma)
(!) (PAIR) 5727=2D21W Amperex by GE NOS 1979
(!) (Single) EL34 Mullard XF2 double halo "O-O" used/70% 1962 (62.5ma)
(!) (slightly microphonic single) 12AU7 Hitachi JAPAN branded IEC Mullard NOS ribbed plates 1968 (9.4/11ma)
(!) 12AU7A Hitachi JAPAN branded Realistic Lifetime NOS ribbed plates 1960 era (9.2/12.2ma)
(!) 6922 Amperex PQ USA gold pins used/good 1971 (9.3/10.4ma) (good Gm)
(!) ECC82=12AU7 Valvo Holland used/good 75-90% 1968 (7.8/9.0ma)
(!) ECC88=6DJ8 Siemens Halske Germany branded Hewlett Packard used/60-65% small "o" getter halo 1964 (11.8/11.2ma)
