Welcome! This is the book that I wish I had when I first started exploring electronics nearly half a century ago. In those days, transistors were only just making their debut and integrated circuits were completely unknown. Of course, since then much has changed but, despite all of the changes, the world of electronics remains a fascinating one. And, unlike most other advanced technological disciplines, electronics is still something that you can do at home with limited resources and with a minimal outlay. A soldering iron, a multi-meter, and a handful of components are all that you need. Except, of course, for some ideas to get you started—and that’s exactly where this book comes in! The book has been designed to help you understand how electronic circuits work. It will provide you with the basic underpinning knowledge necessary to appreciate the operation of a wide range of electronic circuits including amplifiers, logic circuits, power supplies and oscillators. The book is ideal for people who are studying electronics for the first time at any level including a wide range of school and college courses. It is equally well suited to those who may be returning to study or who may be studying independently as well as those who may need a quick refresher. |

The 3rd edition, published June 2006 (ISBN 0-7506-6923-3) contains:

- five substantial new chapters have been added covering Fault Finding, Sensors and Interfacing, Circuit Simulation, PIC Microcontrollers, and Circuit Construction
- more than 140 examples with fully worked solutions
- 250 end-of-chapter problems with answers
- 80 revision problems designed for exam preparation
- 22 practical assignments
- 19 end-of-chapter practical assignments covering everything from Ohm's Law to PIC Microcontrollers
- practical advice on circuit design, construction and fault-finding
- a set of nine appendices packed with data and reference information
- essential underpinning maths (ideal for the independent learner or those who may need a little extra help with mathematics).

Preface. A word about safety. Electrical fundamentals. Passive components. DC circuits. Alternating voltage and current. Semiconductors. Power supplies. Amplifiers. Operational amplifiers. Oscillators. Logic circuits. Microprocessor systems. The 555 timer. Radio. Test equipment and measurements. Fault finding. Sensors and transducers. Circuit simulation using electronic CAD. The PIC microcontroller. Circuit construction. Appendices: Student assignments; Revision problems; Answers to problems; Semiconductor pin connections; Decibels; Mathematics for electronics; Useful web links. Index.

Click here for a sample chapter (4.6 Mb PDF)

Links to other key2 websites: key2control (for PC-based control, instrumentation and measurement), key2study (for general engineering courses).

Errata list: Click here for a short list of errata