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(!!!) (Best Pair #2) 6L6GA Philco Sylvania and Sylvania coated glass NOS 1944 (76ma and 78.5ma) (Highest mA and Gm)
(!!!) (Best Single) 6L6G Raytheon NOS 1940's (68ma)
(!!!) (Best Single) 6L6GC RCA black plate NOS 1968 (72.5ma)
(!!!) (Good Value Single) 6L6GC RCA black plate NOS 1965 broken center guide pin (76.2ma)
(!!!) (Recommended Single) 6L6GC Sylvania clear top NOS 1960's (85ma)
(!!!) (SINGLE) 6L6GAY Sylvania brown base NOS 1956 aged 48-hours (73ma)
(!!!) (SINGLE) 6L6GAY Sylvania brown base NOS 1956 aged 48-hours (84.2ma)
(!!) (Best Single) 6L6GC GE like new "D" getter 1959 (76ma)
(!) (Best Value Single) 6L6GC Sylvania NOS 1960's internals tilted (95ma)
(!) (SINGLE) 6L6GB RCA Baldwin gray plate used/good 1959 (65ma)
6L6GB GE Black Plate used/good 1957 (59ma)
6L6GB Sylvania Black Plate used/good 1955 faded top getter (57ma)
6L6GB Sylvania Black Plate used/good 1955 faded top getter (65ma) (high Ma and Gm)
6L6GC GE NOS 1964 broken center guide pin (61ma)
6L6GC GE tests like new 1964 broken center guide pin (87.5ma)
6L6GC GE Zenith low hours/like new 1960's in white box (61.5ma)
6L6GC Sylvania clear top NOS 1960's copper grid posts (68ma)
6L6GC Tungsol used/good around 1960 - broken center guide pin (73ma)
7581 Tungsol brown base used/75% 1964 (52.5ma)
7581A GE branded RCA used/good 1973 (56ma)