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(!!!!) (Best Value Single) 12AT7WA RCA Command Series black plates NOS 1965 (6.2/7.5ma)
(!!!!) (Good Value Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (6.8/6.8ma and 7.0/7.2ma)
(!!!!) (Recommended Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (8.3/8.4ma and 8.4/7.8ma)
(!!!!) (Recommended Single 1954) GL-6201=12AT7WA GE "5 STAR" black plates triple mica D getter 1954 tests like new (8.2/8.4ma)
(!!!!) (Recommended Single) ECC801S=12AT7 Telefunken Germany <> bottom NOS 1966 with warranty sheet (8.5/9.8ma)
(!!!) (Best 12AT7WC Single) JAN-12AT7WC Sylvania black plates NOS 1978 (9/10ma)
(!!!) (Best Mullard Single) 12AT7WA=CV4024=M8162 Mullard UK NOS 1964 (14/10ma)
(!!!) (Best Pair) 12AT7 RCA gray plates NOS 1972-1974 (9.2/8.6ma and 9.6/8.4ma)
(!!!) (Best SIngle 1950's) 12AT7 Brimar UK black plates "O" getter halo NOS late 1950's (11.6/12.8ma)
(!!!) (Best Single) 12AT7 Brimar UK branded Knight by Mullard black plates "O" getter NOS 1966 (9.2/10.2ma)
(!!!) (Best Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken NOS 1961 (8.5ma/9.4ma)
(!!!) (Best Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken Tektronix Checked NOS 1970 (8.6ma/9.8ma)
(!!!) (Best Single) JAN-12AT7WA Raytheon NOS black plates - triple mica - O getter halo 1968 (13.8/13.4ma)
(!!!) (Best used single) 12AT7 Telefunken Diamond Bottom used/good 1960's (10.0ma/10.8ma)
(!!!) (Best Value Pair) 12AT7=ECC81 RFT East Germany NOS 1970's (10.0/9.6ma and 10.4/9.6ma) 1-2% matched
(!!!) (Best Value Pair) 12AT7WB=6201 GE NOS 1965-1969 (6.0/7.4ma and 6.0/7.2ma)
(!!!) (Best Value Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken NOS 1961 (12.2ma/10ma)
(!!!) (Best Value Single) 6201=12AT7 GE Hewlett Packard NOS 1968 (8.2/9.6ma)
(!!!) (Best Value) 12AT7 Amperex Mullard UK NOS 1971 (7.5/11.2ma)
(!!!) (Best Value) 12AT7 Mullard UK NOS 1969 (9.4/7.6ma)
