(!!!!!) (Best Brimar Pair) 12AX7=CV4004 BRIMAR England tall narrow ribbed plates NOS 1970 (1.0/1.1ma and 1.0/1.2ma)
(!!!!!) (Best Brimar Pair) CV4004=12AX7 Brimar England NOS wide gray ribbed plates (like Mullard) 1970 era (1.2/1.3ma and 1.3/1.4ma) (High Ma and Gm)
(!!!!!) (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 12AX7 Single) 12AX7=ECC83 EICO Mullard England ribbed plates NOS 1966 (163 Series) (1.5/1.5ma and Gm=1900/1900) 1% section balance
(!!!!!) (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 Pair #2) JAN-CRP-5751 Raytheon black plates windmill getter halo NOS 1963 (2.6/2.7ma and 2.5/2.8ma)
(!!!!!) (Best Overall Pair) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates NOS 1967 excellent printing (1.0/1.2ma and 1.1/1.2ma) (phono grade)
(!!!!!) (Best Overall Pair) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates NOS 1967 very good printing (1.1/1.2ma and 1.2/1.3ma) (phono grade)
(!!!!!) (Best Overall Pair) 12AX7A=ECC83 Mullard England ribbed plates NOS 1967 (163 Series) (1.4/1.5ma and 1.6/1.6ma)
(!!!!!) (Best Overall Pair) ECC803S=12AX7 Telefunken Ulm Germany <> bottom gold pins NOS 1967 and 1969 (1.2/1.4ma and 1.2/1.5ma) (Nagra, Lamm, VTL, Aesthetix, Diva)
(!!!!!) (Best Overall RCA Pair 1968) 12AX7A RCA CMI gray ribbed plates NOS 1968 same date codes (best tone) (1.3/1.3ma and 1.2/1.3ma) 1-2% matched
(!!!!!) (Best Overall Single) 12AX7=CV4004 BRIMAR BVA England NOS narrow ribbed plates NOS 1975 (1.4/1.5ma) (Gm=1900/1900) (Highest Ma and Gm) 1-3% section balance (Fender, Marshall, Mac)
(!!!!!) (Best Pair for the money) 12AX7=ECC83 Telefunken Dynaco Germany <> bottom smooth plates used/very good mid-1960's (1.0/1.1ma and 1.0/1.1ma) 1-2% matched (phono grade)
(!!!!!) (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 Pair) JRP-12AX7 Raytheon Black Plates NOS 1962 (1.2/1.4ma and 1.3/1.5ma) 1-2% matched (P2)
(!!!!!) (Best Raytheon 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 Raytheon Black Plates Pair) JRP-12AX7 Raytheon Black Plates NOS 1962 (1.4/1.4ma and 1.4/1.5ma) 1-2% matched (Highest Ma and Gm)
