(!!!!!) (Best Black Plate Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1700/1800) (1.3/1.4ma)
(!!!!!) (Best Brimar Pair) 12AX7=CV4004 BRIMAR England tall narrow ribbed plates NOS 1970 (1.0/1.1ma and 1.0/1.2ma)
(!!!!!) (Best Bugle Boy 1965) 12AX7=ECC83 Amperex Bugle Boy Holland "o" getter halo NOS 1965 (1.2ma/1.3ma)
(!!!!!) (Best Bugle Boy 1965) 12AX7A=ECC83 Amperex Bugle Boy Holland "o" getter halo low hours/like new 1965 (1.2ma/1.3ma)
(!!!!!) (Best Bugle Boy 1966) 12AX7=ECC83 Amperex Bugle Boy Holland NOS 1966 (1.0/1.1ma and Gm=1600/1650)
(!!!!!) (Best Holland Single - Best Value) 12AX7=ECC83 Miniwatt Dario Holland NOS 1970 (Gm=1700/1800)
(!!!!!) (Best Overall 5751 Pair) JAN-CRP-5751 Raytheon black plates windmill getter halo NOS 1963 (2.4/2.5ma and 2.4/2.5ma) (top-rated 5751)
(!!!!!) (Best Overall Black Plates Pair) JRP-12AX7 Raytheon Black Plates NOS 1962 (1.3/1.3ma and 1.2/1.3ma) 1-2% matched (Highest Ma and Gm)
(!!!!!) (Best Overall Pair) 12AX7A GE NOS 1967 (1.6/1.7ma and 1.7/1.8ma) (Matchless, Fender, Tow-Rock, Dumble, VOX, Supro)
(!!!!!) (Best Overall Pair) CV4004=12AX7 Mullard box plates NOS 1981 (1.0/1.1ma and 1.1/1.1ma) 1% matched
(!!!!!) (Best Overall RCA Pair 1968) 12AX7A RCA CMI gray ribbed plates NOS 1968 same date codes (best tone) (1.1/1.2ma and 1.1/1.2ma) 1-2% matched
(!!!!!) (Best Overall Single) 12AX7=ECC83 Mullard UK NOS 1967 rebranded ECC83 Telefunken (1.2/1.5ma and Gm=1800/1900)
(!!!!!) (Best Pair for the money) 12AX7=ECC83 Fisher Telefunken Germany <> bottom smooth plates used/very good 1963-1964 era (.9ma/1.0ma and 1.0/1.0ma)
(!!!!!) (Best Pair for the money) 12AX7=ECC83 Telefunken Dynaco Germany <> bottom smooth plates used/very good mid-1960's (1.0/1.3ma and 1.1/1.2ma) 1-2% matched
(!!!!!) (Best Raytheon Black Plates Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1700/1700) (1.3/1.4ma) 1-2% section balance
(!!!!!) (Best Siemens Pair) ECC83=12AX7 Siemens Halske Germany NOS 1967 1-3% matched (1.0/1.2ma and 1.0/1.0ma)
(!!!!!) (Best Value Pair) 12AX7A=ECC83 RCA (Mullard clone) made in Hyperlec Brive Correza France 1970's (1.1/1.1ma and 1.1/1.3ma)
(!!!!!) (Best Value Pair) 12AX7A=ECC83 RCA (Mullard clone) made in Hyperlec Brive Correza France 1970's (1.3/1.3ma and 1.2/1.4ma)
(!!!!!) (Good Value 7025) 7025A=12AX7 IEC Mullard UK NOS 1969 (Gm=1400/1550)
(!!!!!) (Recommended Pair) 12AX7 Telefunken Germany ribbed plates NOS 1959-1962 (Gm=1500/1650 and 1600/1600)
