Falstad Circuit Simulator
Unknown
Free online circuit simulator for prototyping
More resources on Circuit Building
Ben Eater
Hands-on circuit building kits and videos
All About Circuits
Free textbooks and tutorials on circuit design
Building a Breadboard Computer
Build your own 8-bit computer from scratch! Learn circuit-building with Ben Eater's comprehensive breadboard computer course.
Electronics Fundamentals
Learn electronics fundamentals & circuit-building with this free Khan Academy course. Build your skills today!
Introduction to Electronics
This course introduces students to the basic components of electronics: diodes, transistors, and op amps. It covers the basic operation and some common applications.
allaboutcircuits.com
All About Circuits is an electronics education site offering tutorials, circuit diagrams, and hands-on projects. It also hosts a community forum and a library of component information to help learners design and troubleshoot circuits.