DM74S473AN Logic IC - DIP20 - National Semiconductor - NSC

PAL10H8ANC Integrated Circuit - DIP20 - National Semiconductor - NSC

PAL14H4ANC Integrated Circuit - DIP20 - National Semiconductor - NSC

74S472 Logic IC - DIP20 - National Semiconductor - NSC

TP3155J Integrated Circuit - DIP20 - National Semiconductor - NSC

TP3406V Semiconductor - PLCC28 - National NSC

TDB7818 Semiconductor - TO3 - National NSC

U1899 Semiconductor - TO92 - National NSC