This Web site offers a one-stop shop for electronic projects with images, circuits with full descriptions, schematics and diagrams for printed circuit boards (PCBs), integrated circuits, and homemade electronic devices....

Fab Labs are the educational outreach component for the Center for Bits and Atoms (CBA) at the Massachusetts Institute of Technology (MIT). Fab Lab is an abbreviation for Fabrication Laboratory. It is a group of...

Here is a collection of circuits to be built by the hobbyist including solar power, amateur radio, music/audio, micro power FM broadcasting, pulse width modulator (PWM), telephone, Geiger counter, video, and other...

A simple explanation of how a transistor works. Most introductory textbooks do a very poor job of explaining the details of how transistors work. First they assume that the Base current is somehow controlling the...

This NSF funded site, at the University of Virginia, shows how semiconductors and transistors are constructed and work. This is a Virtual Science Lab that lets the users see how semiconductor crystals work and how they...