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(!!!) (Best Value) 12AT7 Mullard UK NOS 1969 (9.4/7.6ma)
(!!!!) (Recommended Single 1954) GL-6201=12AT7WA GE "5 STAR" black plates triple mica D getter 1954 tests like new (8.2/8.4ma)
(!!) (Single) 6060=12AT7 Brimar Thorn UK square black plates triple mica large "O" getter halo 1960 NOS (6.4/8.4ma) (Premium low noise 12AT7)
(!!!) (Single) ECC81=12AT7 Telefunken Germany <> bottom NOS 1963 (6.8ma/7.6ma) (recommended for mic)
(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (9ma/6.5ma) (recommended for mic)
(!!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1974 (10.5/7.5ma and 10.8/8.2ma)
(!!!!) (Best Single #2) 12AT7=ECC81 Mullard branded Raytheon NOS 1972 (9.2/9.2ma)
(!!!) (single) ECC81=12AT7 Philips Miniwatt by Mullard UK like new "o" getter 1957 (8.2/7.6ma) (Mitcham plant)
(!!!) (Best Value Pair) 12AT7=ECC81 RFT East Germany NOS 1970's (10.0/9.6ma and 10.4/9.6ma) 1-2% matched
(!) 12AT7 Mullard Heath "D" getter used/good 1959 (6.4/7.6ma)
(!) 12AT7 Mullard Heath "D" getter used/like new 1960 (8.0/9.6ma)
(!!!!) (Recommended Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (8.3/8.4ma and 8.4/7.8ma)
(!!!!) (Good Value Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (6.8/6.8ma and 7.0/7.2ma)
(!) 6201=12AT7WB GE 5 Star gray plates used/good 1964 (6.5ma/6.0ma)
(!!!) (Recommended Single) 12AT7 GE NOS 1981 (7.0/6.8ma)
(!!!) (Single) 12AT7 GE gray plate NOS 1975 (8.4ma/6.8ma)
(!!!!) (Best Pair) 12AT7=6679 GE gray plates NOS (9.5/10ma and 9.8/10.5ma)
(!!!!) (Best Sound/Best Price) 12AT7 GE gray plates NOS 1961 (10/15ma and 14.5/10ma) (sweet sound)
(!!!) (Best Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken NOS 1961 (8.5ma/9.4ma)
(!!!) (Best Value Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken NOS 1961 (12.2ma/10ma)
