Diode Logic Explained – Build AND, OR, NOR and NAND Gates

Build Circuits With Rich – Diodes and Diode Logic In this lesson we explore how diodes work and how they can be used to create simple logic circuits. Diodes are one of the most important components in electronics. Because they allow current to flow in only one direction, they can also be used to perform basic digital logic functions. In this video you will learn: • How a diode works • How current flows through a diode • How to build a diode OR gate • How to build a diode AND gate • How diode circuits can be used to create logic gates We also build working examples on a breadboard using LEDs so you can see the logic outputs in real time. This lesson is part of the Build Circuits With Rich beginner electronics series designed to help you learn electronics step-by-step with clear explanations and real circuits. 📘 Many classic diode logic circuits were popularized in the engineering notebooks of Forrest M. Mims III, which are available through resources such as Archive.org. 🔧 Visit the Build Circuits With Rich website (buildcircuitswithrich.com) for lesson notes and more tutorials.