(!!) 6L6GAY Sylvania brown base NOS 1956 aged 48-hours (84.2ma)
(!) (Best Value Single) 6L6GC Sylvania NOS 1960's internals tilted (95ma)
(!) (Recommended Single) 6L6GC Sylvania NOS 1960's (63.5ma)
(!) (SINGLE) 6L6G Raytheon NOS 1948 (72ma)
(!) 6L6 RCA metal can NOS 1969 (72ma)
(!) 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)
350C Shuguang (sub for 5881 or 6L6GC) (63ma)
350C Shuguang (sub for 5881 or 6L6GC) (68ma)
6L6 RCA metal can NOS 1940's (66ma)
6L6 RCA metal can NOS 1940's (75ma)
6L6 RCA metal can used/like new 1953 (71ma)
6L6 RCA metal can used/very good 1945 era (72.5ma)
6L6G Haltron UK used/good 1960's (72ma)
6L6G Hitachi Japan NOS rebranded Perma-Test NOS 1962 (73ma)
6L6G Ken Rad coated glass used/75% 1940's (50ma)
6L6G Sylvania branded Silvertone clear glass used/strong 1947 (66ma)
6L6G Sylvania branded Silvertone coated glass used/good 1947 (56ma)
6L6GA National Union used/good/80% 1940's (56.4ma)