The site for learning about electronics technology

Learnabout Electronics
LearnAbout Electronics

Since its launch in 2009 the aim of Learnabout Electronics has always been to supply high quality information on electronics, no bells, no whistles, just easy to read reliable information, backed up with clear and informative illustrations. This is why they have grown to be one of the most popular on line electronics education sites on the Web, used every year by millions of independent learners, major educational publishers, armed forces training establishments as well as colleges and universities all over the world.
Learnabout Electronics is completely FREE.

Learnabout Electronics started simply as a small (but prize winning) web site as part of my university studies. Since then it has continued to grow both in size and scope to become one of the most trusted and popular electronics sites on the web. Now with over 1700 or more illustrations and animations on over 270 pages of simply explained electronics topics.

  • Learnabout Electronics For Students

Learning about electronics? Here you will find full and easy explanations of how components and circuits really work; animations to make transistor operation clear and stuff you need to know about digital electronics. Solve those problems for AC theory and know to to test transistors in our Fault Identification Section. Also get help with those essential maths problems you need when starting out in electronics. No one pretends that electronics is easy to learn but Learnabout Electronics uses well proven methods to help you learn thoroughly. Each module explains what you need to learn and a quiz at the end helps you check what you have learned. If you get any question wrong, you don't fail, we don't tell you the answer, you are guided back to where YOU can find the answer. This way you can get every question right!

  • Learnabout Electronics For Teachers

Learnabout Electronics is designed to take your students one stage further in an interesting and informative way, with information suitable for students studying on a wide range of electronics courses, anywhere a practical understanding of electronic components and circuits is needed, with interactive animations and digital simulations useable on a wide range of devices and screen sizes. Learnabout Electronics will provide useful support material for advanced students, as well as key information for students new to electronics.

Learnabout Electronics also links to trusted electronics industry sites worldwide. Hundreds of electronics industry companies publish information on the web. We have chosen some of the best and provided relevant links on many topics to take you directly there.

LearnAbout Electronics

Electronics For All
Already one of the most popular on line electronics education sites, with around 300 pages and over 1700 illustrations and animations on a wide range of electronics topics, Learnabout Electronics has grown into a major international educational site, used by millions of independent learners, major educational publishers, armed forces training establishments as well as colleges and universities all over the world. Used for electronics classes.

Resistors & Circuits
Learn the basics of electronics - Ohm´s Law, simple circuits and resistor networks - both series and parallel explained step by step.

All the essentials; voltage current, conductance and resitivity explained. How does temperature affect resistance? Its all here, together with component recognition for 4, 5 and 6 band coded resistors as well as SMT codes and simple fault finding.

AC Theory
Our pages about AC components and circuits are designed to teach the basics of AC Theory in 11 easy to learn modules. Use them as a complete course, or study any individual topic, including capacitors, inductors, reactance, impedance, waveforms and phasors.

Every module is backed up with a paper version to download, print and keep. The online pages also use interactive animations, adding to our popular transistor animations that are now among the most sought after diagrams of their type on the web.

How oscillators work and what they do. Radio frequency and audio frequency circuits, astables, monostables and pulse width modulation are all here in our popular learnabout modules.

Learn about oscillators step by step, or choose any module and learn just what you need to know. How to design and build working circuits for yourself. How to test oscillators, plus links to relevant electronics industry oscillator data!

Learning about electronics? Then you need to know about components, including diodes, FETs, bipolar transistors, thyristors triacs and diacs, opto-coupled devices and basic semiconductor theory.

Find full and easy explanations of many common types. Check out our animated diagrams to make transistor operation clear. What´s the difference between common emitter, common base and common collector connections? Find out the right way to test transistors in our Fault Identification Section and get help with those maths problems you need when starting out in electronics.

Learn how to design and build a working transistor amplifier with the minimum of maths theory. Amplifier classes explained from A to D, together with multistage amplifiers, practical power amplifiers and op amp circuits. Get to grips with negative feedback, input impedance and bandwidth control. Everything from basic amplifier facts to complex professional designs is here on Learnabout Electronics.

Power Supplies
Every circuit (just about) needs a power supply, so you need to know how power supplies work. Learnabout these vital circuits - everything from Basic Rectifier Circuits to Switched Mode Supplies, and from basic components to integrated circuits - all in our easy to learn modules.

The power supply modules are also extensively linked to key pages with detailed information and basic terms you need to be familiar with. Use the power of learnabout-electronics’ hundreds of pages of electronics information to guide you through the stuff you need to know, and important data sheets on power supply components are also just a click away to link you to manufacturers data.

Digital Electronics
Learn-about Digital Electronics with FIVE MODULES packed with information and circuits on digital technology! Start with binary arithmetic - Boolean Algebra, Karnaugh Maps, all the essentials you need to know. Step by Step instructions for simplifying Boolean expressions, plus FREE TO DOWNLOAD software to make simplifying Boolean a breeze!

Logic Gates, logic families and digital circuits explained, from basic gates to complex circuitry that makes computers work. Multiplexers, adders, counters, shift registers and more. Download free Logisim software and over 60 interactive simulations of common digital circuits.