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(!!!) (Single) 5998A Sylvania JAN NOS 1980 (141/122mA) (close Gm)
(!!!) (Single) 6080 GE NOS 1970's (132/83ma)
(!!!) (Single) 6080 GE NOS 1974 (70/106ma)
(!!!) (Single) 6AS7G RCA branded GE black plates used/good 1953 (114/75ma)
(!!!) (Single) 6AS7G RCA branded GE clear top black plates used/good 1950 (64/65ma)
(!!!) (SINGLE) 6B4G Philco by Sylvania engraved base springs hold up filaments NOS 1930's (91ma) (rare)
(!!!) (Single) 6L6G Zenith by Sylvania engraved abse 1930's used/tests like new (71ma)
(!!!) (SINGLE) 6L6GAY Sylvania brown base NOS 1956 aged 48-hours (73ma)
(!!!) (SINGLE) 6L6GAY Sylvania brown base NOS 1956 aged 48-hours (84.2ma)
(!!!) (Single) 7868 RCA gray plate used/75% 1970 era (47.6ma)
(!!!) (Single) 7868 RCA gray plate used/75% 1970 era (47ma)
(!!!) (Single) 8417 Sylvania branded Dumont NOS 1980 (84ma)
(!!!) (Single) EL84 Mullard UK "D" getter used 1956 (36ma)
(!!!) (Single) KT66 Osram UK black base used 1950's (57ma) (Gm=60%)
(!!!) (~ Best Value Pair ~) EL84 Tesla NOS 1980's no printing (44.5ma and 44ma) 1% matched
(!!!) (~ Best Value Single ~) EL84 Brimar England low hours/tests like new 1961 (50ma)
(!!!) 231=31 US Made Balloon NOS 1920's (14.2ma)
(!!!) 31 RCA Radiotron Balloon NOS 1920's (13.2ma)
(!!!) 5881 Tungsol used/good 1957 (58ma)
(!!!) 6336 Chatham metal plates used 1954 (59/74ma)
