6678=6U8A GE NOS (3 in stock)
6U8A Philips by Sylvania NOS 1987 (20.2ma and 7.5ma)
6U8A used/good
6U8A=6678 Dumont NOS 1971 (18.5/10.2ma)
6U8A=6678 Dumont NOS 1971 (19.7/7ma)
7687 Sylvania NOS 1962 (sold out)
FAA-6U8A Sylvania NOS 1968 (13ma and 8.8ma)
JHS-6U8A Sylvania NOS 1966
