These pages will help you identify components, read their values and learn about their functions.

For care of components when soldering please see the Soldering Guide.

The operation of circuits and their components is explained in the Study section.

Buy from Rapid Electronics

Rapid Electronics stock a wide range of components, tools and materials for electronics and I am happy to recommend them as a supplier. They have kindly allowed me to use their images on this website and I am very grateful for their support.

New book: Electronics for Kids

'Electronics for Kids' is a great introduction to electricity and electronics (and not just for kids!). Printed in full colour with many illustrations, it introduces common components with simple but interesting projects to build at each stage. The book starts by assuming no previous knowledge then carefully builds up straightforward explanations of how components work, plus practical techniques including wire-stripping, soldering and using a multimeter.

Highlights include lighting an LED with lemons, using a relay to flash an LED, building a musical instrument, making a sunrise alarm, a colour-guessing game, a secret code checker and the final project uses three ICs to make a great game.

The author, Øyvind Nydal Dahl, has done a great job in providing clear step-by-step instructions with breadboard (or stripboard) layouts as well as circuit diagrams for projects. As Technical Reviewer for the book I've built all the projects myself and I'm very happy to recommend it to anyone looking for a fun and educational introduction to electronics.