(!!) 6U8A Westinghouse NOS 1967 (24ma and 7.5ma)
(!!) 6U8A Westinghouse NOS 1967 (17.8ma and 9.5ma)
6U8A Philips by Sylvania NOS 1987 (20.2ma and 7.5ma)
FAA-6U8A Sylvania NOS 1968 (13ma and 8.8ma)
(!!!) (Best Single) 6U8A GE Motorola NOS 1977 (15.2ma/9ma)
JHS-6U8A Sylvania NOS 1966
(!!!!) (Recommended Pair) 6U8A Philips by Sylvania NOS 1986 (16.4/16.8ma and 9.2/9.2ma)
(!) (Recommended SINGLE) 6U8A Sylvania NOS 1960's (19.8ma/10.6ma)
(!!!!) (Recommended Pair) 6U8A Philips by Sylvania NOS 1986 (15.5/16.0ma and 8.4/8.0ma)
