ZN449 Integrated Circuit - DIP18 - GEC Plessey - GPS

SL490B Integrated Circuit - DIP18 - GEC Plessey - GPS

ZN449E Integrated Circuit - DIP18 - GEC Plessey - GPS

ZN427E8 Integrated Circuit - DIP18 - GEC Plessey - GPS

ZN429 Integrated Circuit - Standard Custodia - GEC Plessey - GPS

NJ8821BDP Integrated Circuit - Standard Custodia - GEC Plessey - GPS

ZN508E8 Integrated Circuit - DIP20 - GEC Plessey - GPS

ZN525E Integrated Circuit - DIP18 - GEC Plessey Semiconductors