(!!!!) (Best Overall Pair) ECC82=12AU7 Telefunken Germany <> Bottom smooth plates NOS 1961-1965 very good printing (9.8/10.9ma and 9.8/10.4ma) 1-5% matched
(!!!!) (BEST OVERALL PAIR) ECF80=6BL8 Mullard rebranded Philips NOS 1966 1-5% matched
(!!!!) (Best Overall Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (7.3ma and 7.3ma) 1-2% matched
(!!!!) (BEST OVERALL QUAD) 5U4GB Raytheon NOS "O" getters 1962 1-2% matched
(!!!!) (Best Overall Single) 12BH7A Westinghouse gray ribbed plates NOS 1967 (10.6/10.8ma) (Same Gm) (similar to RCA)
(!!!!) (Best Overall Single) ECC803S=12AX7 Telefunken Ulm Germany <> bottom NOS 1961 1% section balance (Gm=1800/1800) (1.5/1.5ma)
(!!!!) (Best Overall Single) EF86 Telefunken Germany <> bottom NOS gray shield 1972 (3.4ma) (Neumann, Lawson, Soundelux, Manley)
(!!!!) (Best Overall Single) JAN-5998=421A Tungsol black plates top and side getter NOS 1966 (124ma and 119ma) (Close Gm)
(!!!!) (Best Pair 1955) CV378=GZ37 Mullard "D" getter NOS 1955 faded printing (56-56/40 and 57-57/40 x 2 tubes)
(!!!!) (BEST PAIR 1960's) 6DJ8 Sylvania NOS 1960's (17.0/17.8ma and 14.5/19ma)
(!!!!) (Best Pair) 12SN7GTA GE coin-base side getter NOS 1980 (10.4/10.4ma and 10.6/10.8ma) 1-2% matched
(!!!!) (Best Pair) 311B Amperex made in Russia NOS 1977 (34.2ma and 34.5ma) (very good construction)
(!!!!) (BEST PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-62/40 and 60-62/40)
(!!!!) (Best Pair) 5Y3GT Philips Holland NOS 1960's (59-63/40 and 60-64/40)
(!!!!) (BEST PAIR) 6973 RCA gray plate NOS 1960's - 1970's same build (48.5ma and 50.6ma)
(!!!!) (BEST PAIR) 6EU7 GE NOS 1969 same date codes (40-46/32 and 42-46/32)
(!!!!) (Best Pair) 6EU7 Sylvania Philips NOS 1970's (77-79/32 and 76-78/32)
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1953 (1.1ma and 1.2ma)
(!!!!) (Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new faded printing (2.8/2.9ma and 2.8/2.9ma) 1% matched
(!!!!) (Best Pair) ECC81=12AT7 Telefunken Germany <> bottom NOS 1969 (10.4/9.6ma and 9.2/10.4ma)