(!!!!) (Recommended Sylvania Pair) USN-CHS-6922 Sylvania gold pins NOS same date codes "O" getter halos 1964-1965 (11/13ma and 11.0/11.5ma)
(!) (BEST SINGLE) 6U8A Sylvania NOS 1970 era (20ma/17ma)
(!) (Recommended SINGLE) 6U8A Sylvania NOS 1960's (19.8ma/10.6ma)