(!!!!) (Best Pair) 6AW8A GE NOS 1968-1972 (3.5/30ma and 4.1/30ma) (Highest mA and Gm) (Shindo)
(!!!) (Single 1962) 6DJ8 Amperex Holland used/good 1962 (11.6/12.6ma)
(!) 6DJ8 Tungsram Hungary branded Amperex used/good 1982 (9.5/12.5ma)
(!!!!) (Best Pair) 12SN7GTA GE coin-base side getter NOS 1980 (9.4/9.8ma and 9.0/9.4ma) (close Gm)
(!!!!) (Best Pair) 12SN7GTA GE coin-base side getter NOS 1980 (8.8/9.4ma and 8.4/9.0ma) (close Gm)
(!!!!) (Recommended Pair) 6AW8A GE NOS 1965-1973 (2.6/23.2ma and 2.6/21ma) (Shindo)
(!!!!) (Recommended Pair) 6AW8A GE NOS 1968-1970 (3.5/22ma and 4.1/27ma) (Shindo)
(!!!) (Best Holland Single) ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957 (14ma/11ma)
6136=6AU6WB GE 5 star black plate NOS 1956 (6.6ma)
(!) 6DJ8 Tungsram Hungary branded Amperex NOS 1980 (11.2/11.0ma)
(!!!!) (Single 1953) 12AU7 GE gray ribbed plates "U" getter NOS/80% 1953 (7.6/8.0ma) (smooth sound)
(!) (Best Pair) 6661=6BH6 GE NOS 1983 (9.4ma and 8.3ma)
(!!!!) (Best Single 1960) 12AX7 GE tall gray ribbed plates "U" getter NOS 1960 (Gm=1700/1600 and 1.5/1.1ma)
(!!!!) (Best Pair 1960) 12AX7 GE tall gray ribbed plates "U" getter like new 1960 (1.2/1.2ma and 1.3/1.2ma) 1-3% matched
(!!!!) (Best Pair 1960) 12AX7 Westinghouse NOS gray pinched plates "D" getter 1960 (1.2/1.2ma and 1.1/1.1ma) 1-3% matched
(!!!!) (2nd Best Pair 1960) 12AX7 Westinghouse NOS gray pinched plates "D" getter 1960 (1.3/1.1ma and 1.3/1.1ma) 1-3% matched
(!!!!) (Good Value Single 1960) 12AX7 GE tall gray ribbed plates "U" getter used/good 1960 (Gm=1600/1450 and 1.1/0.9ma)
(!!!!) (Best Value Single 1960) 12AX7 GE tall gray ribbed plates "U" getter tests like new 1960 faded printing (Gm=1600/1600 and 1.1/1.3ma)
