The Component That Changed History: Master the Transistor & Build a Touch Switch
From sand to supercomputers. Learn how the NPN transistor works, why it is the most important invention in history, and build a circuit controlled by your finger.
Explore our collection of Electronics Basics tutorials and guides
From sand to supercomputers. Learn how the NPN transistor works, why it is the most important invention in history, and build a circuit controlled by your finger.
Stop guessing and start building. Learn how to decode the breadboard, master the multimeter, and build your very first working LED circuit without burning anything down.
Master the Big Three of electronics theory using the intuitive Water Analogy. Finally understand how Voltage, Current, and Resistance actually work together.
Confused by voltage? Scared of shocks? This absolute beginner's guide explains what electronics really is, how to stay safe, and why you should start today.