(!!!!) (Recommended Pair) 6U8A GE NOS 1963-1966 (15/14ma and 9.6/9.0ma)
(!!!!) (Recommended Pair) 6U8A GE NOS 1973-1976 (19/18.8ma and 10/9.8ma)
(!!!!) (Recommended Pair) 6U8A Philips by Sylvania NOS 1986 (15.5/16.0ma and 8.4/8.0ma)
(!!!!) (Recommended Pair) 6U8A Philips by Sylvania NOS 1986 (16.4/16.8ma and 9.2/9.2ma)
(!!!) (Best Single) 6U8A GE Motorola NOS 1977 (15.2ma/9ma)
(!!) (Recommended Single) 6U8A GE Amperex NOS 1974 (13.5ma/10.2ma)
(!!) (Recommended Single) 6U8A GE NOS 1977 (14.2ma/10ma)
(!!) 6U8=ECF82 Tungsram Hungary rebranded Haltron NOS 1970's (14.3ma and 7.6ma)
(!!) 6U8A Westinghouse NOS 1967 (17.8ma and 9.5ma)
(!!) 6U8A Westinghouse NOS 1967 (24ma and 7.5ma)
(!!) ECF82=6U8 Telefunken Germany <> bottom NOS 1968 (12.8ma triode and 8.2ma pentode)
(!!) ECF82=6U8 Telefunken Germany <> bottom NOS 1968-1969 faded printing (14ma triode and 8.6ma pentode)
(!) ECF82=6U8 Telefunken <> bottom used/good 1967 (13.4ma triode and 6ma pentode)
(Best Value) 6U8A Rogers Canada NOS 1974 (14.8ma triode and 8ma pentode)
6AV6=EBC91 Ediswan Valve UK NOS 1960's (1.2ma)
6AV6=EBC91 Ediswan Valve UK NOS 1960's (2.5ma)
6U8A used/good
6U8A=6678 Dumont NOS 1971 (19.7/7ma)
