REF050C1 SemiConductor - TO18 - GEC Plessey - GPS

ZN458B Integrated Circuit - TO18 - Ferranti - Zetex

ZN458A Integrated Circuit - CUSTODIA: TO18 MAKE: Plessey

SL1452 Integrated Circuit - Standard Custodia - GEC Plessey - GPS

SP8630B Integrated Circuit - DIP14 - GEC Plessey - GPS

NJ8820 Integrated Circuit - DIP20 - GEC Plessey - GPS

SL6654-SMD Integrated Circuit - SO18 - GEC Plessey - GPS

TDA2540 Integrated Circuit - DIP16 - GEC Plessey - GPS