(!!!!) (BEST OVERALL QUAD) 5U4GB Raytheon NOS "O" getters 1962 1-2% matched
(!!!!) (Best Overall Single) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1970 (10.2/11.2ma)
(!!!!) (Best Overall Single) GZ37 Mullard UK NOS 1966 (52/40 and 52/40) 1% section balance
(!!!!) (Best Pair #1) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (50/40 and 50/40 x 2 tubes) 1% matched
(!!!!) (Best Pair #1) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (50/40 and 50/40 x 2 tubes) 1% matched (Copy)
(!!!!) (Best Pair #1) ECC82=12AU7 Philips Holland NOS 1972 (12/12ma and 11.2/11.8ma) (Highest mA and Gm)
(!!!!) (Best Pair #2 - best value) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (0.9/1.0ma and 1.0/1.1ma) 1-5% matched (close Gm)
(!!!!) (Best Pair #2) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 50/40 x 2 tubes) 1% matched
(!!!!) (Best Pair #2) ECC82=12AU7 Philips Holland NOS 1971 (10.8/11ma and 10.0/10.4ma)
(!!!!) (Best Pair #3) 6EU7 RCA NOS 1967 (48-49/32 and 51-52/32)
(!!!!) (Best Pair #3) 7N7 Sylvania branded RCA 1960 era (8.4/8.4ma and 8.6/8.8ma) 1-3% matched
(!!!!) (Best Pair #3) 7N7 Sylvania branded RCA amd Sylvania 1960 era (8.4/9.5ma and 8.6/9.8ma) (same Gm) 1-3% matched
(!!!!) (Best Pair 1960 era) ECC82=12AU7 Telefunken Diamond Bottom ribbed plates like new and NOS 1957-1960 (14.0/11.2ma and 11/12.5ma) (Highest mA and Gm)
(!!!!) (BEST PAIR 1960's) 6DJ8 Sylvania NOS 1960's (17.0/17.8ma and 14.5/19ma)
(!!!!) (Best Pair 1966) CV378=GZ37 Mullard NOS 1966 (51-51/40 x 2 tubes) 1% matched
(!!!!) (Best Pair for the money) 5Y3GT Philips Holland NOS 1960's (60-66/40 and 60-66/40)
(!!!!) (Best Pair) 12AX7 GE branded 12AX7A International NOS 1977 (1.3/1.3mA and 1.4/1.4ma) (Same Gm) 1-2% matched
(!!!!) (Best Pair) 12SN7GTA GE coin-base side getter NOS 1980 (8.4/8.0ma and 8.2/8.4ma) 1-2% matched
(!!!!) (Best Pair) 12SN7GTA GE coin-base side getter NOS 1980 (8.6/8.6ma and 8.8/8.6ma) 1-2% matched
(!!!!) (Best Pair) 311B Amperex made in Russia NOS 1977 (34.2ma and 34.5ma) (very good construction)
