Electrical and Electronic Installation Symbols Drawing Template Stencil &ndash; Engineering Drafting Supplies &ndash; Layout Plan Schematic Wiring Electrical Electronic Engineering Symbols Drawing Template Stencil Dimensions: 230 x 130mm, Thickness: 1.2mm The rate of transparency allows to see the drawing medium below template for easy positioning. This electrical / electronic engineering stencil contains symbols of contacts, switches, rectifiers, capacitors, transformer coils, Ideal for students, teachers, engineers, Made from transparent, orange plastic. Useful when drawing diagrams, schematics, plans, layouts. Terminals, diodes, transistors, and many others.