ZN458 Integrated Circuit - TO18 - GEC Plessey - GPS

ZT187 Transistor Silicon PNP - TO18 - Ferranti - Zetex

ZN458A Integrated Circuit - CUSTODIA: TO18 MAKE: Plessey

ZT82 Transistor Silicon NPN - TO18 - Ferranti - Zetex

ZT1583 SemiConductor - Standard Custodia - Ferranti - Zetex

ZN1060E SemiConductor - DIP16 - Ferranti - Zetex

ZTX383C Transistor Silicon NPN - TO226 - Ferranti - Zetex

ZN1010 Integrated Circuit - Standard Custodia - Ferranti - Zetex