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(!!!) (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 PAIR) 6L6GC Sylvania gray plate used/tests like new 1960's same date codes (66ma and 72ma) (close Gm)
(!) (Best Value Single) 6L6GC Sylvania NOS 1960's internals tilted (95ma)
(!) (Single) 6L6G Sylvania branded RCA coated glass used/good 1947 (56ma)
(!) (SINGLE) 6L6GB RCA Baldwin gray plate used/good 1959 (65ma)
(!) 6L6Y RCA metal can (Y=brown bottom) NOS 1955 (78.8ma)
(!) 6L6Y RCA metal can (Y=brown bottom) NOS 1964 (72ma)
(!) 6L6Y RCA metal can (Y=brown bottom) NOS 1966 (77ma)
(DISPLAY TUBE) 350B Western Electric used 1967 (display tube - defective)
350C Shuguang China NOS (sub for 5881 or 6L6GC) (68.5ma)
6L6 RCA metal can NOS 1940's (66ma)
6L6 RCA metal can used/like new 1953 (71ma)
6L6 RCA metal can used/very good 1945 era (72.5ma)
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)