(!!!!!) (2ND BEST PAIR) 12AU7=ECC82 Telefunken Germany smooth plates NOS 1961-1965 1-5% matched (10.5/12.0ma and 12.2/10.2ma)
(!!!!!) (BEST OVERALL PAIR) 12AU7=ECC82 Telefunken Germany smooth plates NOS 1963 1-5% matched (9.4/9.4ma and 9.5/9.0ma)
(!!!!!) (Best Single) EL34 Mullard UK branded CMI XF2 single halo "O" NOS 1969 (96.7ma)
(!!!!!) (Best Single) EL34 Mullard UK branded Siemens XF2 double halo "O-O" NOS 1963 (108ma)
(!!!!!) (Best Value Single) EL34 Mullard UK branded Pinnacle XF2 double halo "O-O" NOS 1965 (67ma)
(!!!!!) (Good Value Pair - for Audio Aero) 6021=CV3986 Mullard UK Mitcham NOS 1969 (4.4/4.6ma and 4.5/4.8ma) (1-3% matched)
(!!!!!) (Recommended XF2 Pair) EL34 Mullard UK XF2 single halo "O" NOS 1970-1973 (85ma and 90.5ma)
(!!!!) (2nd Best Single) 5842=417A Amperex "PQ" Holland "D" getter Gold Pins NOS 1956-1959 (23ma)
(!!!!) (2nd Best Single) EF86 Telefunken Germany <> bottom NOS gray shield 1972 (3.0ma) (Neumann, Lawson, Soundelux, Manley)
(!!!!) (BEST Holland Pair) ECC88=6DJ8 Philips Holland NOS 1972-1974 (13.4/12.4ma and 13.8/12.4ma)
(!!!!) (Best Pair #1) ECC82=12AU7 Philips Holland NOS 1972 (12/12ma and 11.2/11.8ma) (Highest mA and Gm)
(!!!!) (Best Pair #2) ECC82=12AU7 Philips Holland NOS 1971 (10.8/11ma and 10.0/10.4ma)
(!!!!) (BEST PAIR) 5R4GYB RCA and RCA branded Westinghouse NOS 1961-1970 (50-52/40 and 50-53/40)
(!!!!) (Best Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.3/1.6ma and 1.4/1.6ma) 1-3% matched (high Gm)
(!!!!) (Best Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.4/1.4ma and 1.4/1.4ma) 1-2% matched
(!!!!) (Best Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.5/1.4ma and 1.5/1.4ma) 1% matched
(!!!!) (Best Single #2) 12AT7=ECC81 Mullard branded Raytheon NOS 1972 (9.2/9.2ma)
(!!!!) (Best Single #3) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1964 copper grid posts (10.6ma/10.2ma) 1-3% section balance
(!!!!) (Best Single) 12AT7=ECC81 Mullard UK NOS 1972 (10.4/10.2ma)
(!!!!) (Best Single) 5842=417A Amperex "PQ" Holland "D" getter Gold Pins NOS 1956-1959 (35ma)
