| UW Circuits Archive |
| Schematics from Australia |
| Schematics from Finland |
| Dr. Bob's Electronic Resources |
| 4QD Circuits |
| PC interface kits and schematics |
| Circuit Land |
| The Electronic's Page |
| Holger Heinemann's Circuits (in German) |
| Circuit Central |
| Xcircuit, a free Unix/X windows circuit drawing program |
| Solar and alternative energy companies |
| Tomi Engdahl's Electronic Info . .Links to a wide variety of analog and digital circuits |
| 4QD . . . . . . . . . . . . . . . . . . . . . 4QD's Pages of Interesting Circuits |
| E-Lab . . . . . . . . . . . . . . . . . . . . E-Lab Digital Engineering Inc. |
| Tony's Website . . . . . . . . . . . . . R/C Gadgets and electronic circuits for the hobbyist |
| Aron's Circuits .. . . . . . . . . . . . . Laser/Light Sound/Radio Auto Computer and Phone |
| TCummings Page .. . . . . . . . . . . Circuit Cookbook / Reference / Tips & Tricks |
| Steve Walz's FTP Site . . . . . . . . FTP Resource Site, 1000 Files in 50 Directories |
| Peter Johnson's Home Page . . . . Links to Audio/Music and Other Circuit Schematics |
| Wenzel & Associates . . . . . . . . . Technical Library, Hobby Circuits in PDF Format |
| Sam Goldwasser . . . . . . . . . . . . .Notes on Trouble Shooting and Repair |
| Jerry Russell's Engineering Archive . Circuits / Text Files / Software |
| Miscellaneous Analog / Digital Circuits |
| Electronics WWW-Sites and Documents |
| Many Additional Links to Electronics Websites |
| LED Frequently Asked Questions |