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(!!!!!) (Best Overall Pair) ECC82=12AU7 Telefunken Diamond Bottom ribbed plates NOS 1958-1960 (9.0/10.2ma and 10/9.6ma) (Same Gm)
(!!!!!) (Best Overall Pair) ECC83=12AX7 Telefunken Germany smooth plates NOS 1965-1967 (1.3/1.1ma and 1.3/1.1ma) (phono grade) 1% matched (Same Gm)
(!!!!!) (Best Pair #1) 6SN7GTB GE NOS 1965 same date codes (7.8/7.6ma and 8.6/8.0ma) (Schiit Freya, Rogue)
(!!!!!) (Best Pair #2) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966 (1.0/1.0ma and 1.0/1.0ma) (phono grade) 1% matched (same Gm matching)
(!!!!!) (Best Pair #2) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966 (1.0/1.2ma and 1.0/1.3ma) (phono grade) 1-3% matched (very close Gm matching)
(!!!!!) (Best Pair 1965) 12AU7=ECC82 Telefunken Germany <> bottom smooth plates NOS 1965 (10.6/10.4ma and 9.8/10.9ma) (Close Gm matching)
(!!!!!) (Recommended Pair) JAN-CTL6SL7WGT Tungsol NOS brown base gray ribbed plates 1961-1965 (2.1/2.2ma and 2.1/2.3ma) (low noise - very smooth sound) (phono grade)
(!!!!) (Best Overall Pair - A0 Series) 6922=E88CC Siemens Halske Germany gray shield NOS 1962 (18/15ma and 18.4/15.5ma) (Best Overall 6922 Pair) (Phono grade)
(!!!!) (Best Overall Single) ECC803S=12AX7 Telefunken Ulm Germany <> bottom NOS 1967 (1.5/1.5ma and Gm=1800/1800) 1% section balance
(!!!!) (Best Overall Single) GZ37 Mullard UK NOS 1966 (52/40 and 52/40) 1% section balance
(!!!!) (Best Pair #1) 448A Western Electric tipped top used/test like new 1965 (27.2ma and 27.3ma) 1-2% matched
(!!!!) (Best Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/2.2ma and 2.0/2.1ma)
(!!!!) (BEST PAIR) 5R4GYB RCA and RCA branded Westinghouse NOS 1961-1970 (50-52/40 and 50-53/40)
(!!!!) (Best Pair) ECL86=6GW8 Philips Holland NOS 1968 (1.1/1.2ma and 40.5/44ma)
(!!!!) (Best Pair) ECL86=6GW8 Siemens Germany NOS 1968-1969 (1.1/1.2ma and 41/46ma)
(!!!!) (Best Single #1) 12AU7=ECC82 Mullard UK shield logo NOS 1963 (10.2/11.0ma) (smooth rich sound)
(!!!!) (Best Single #1) EC92=6AB4 Telefunken Germany <> bottom NOS 1965 (15ma) (mic)
(!!!!) (Best Single #1) EC92=6AB4 Telefunken Germany <> bottom NOS 1968 (10.6ma) (mic)
(!!!!) (Best Single #2) 12AU7=ECC82 Mullard UK shield logo NOS 1965 (11.2/12.6ma) (smooth rich sound) (Copy)
(!!!!) (Best Single #2) ECC803S=12AX7 Telefunken Qualitex Ulm Germany <> bottom like new 1964 (1.3/1.5ma and Gm=1600/1800)
