CircuitDB
Circuitdb is an interactive database containing circuits. each circuit has a brief decription, partlist, schematic, downloads, etc. anyone can register him or herself to login and submit a circuit. registered users will also be able to give comment on circuits and rate circuits. the idea behind this is to get a large central circuit database that can be easily accessed and searched by anyone.
http://www.circuitdb.com/
4QD Interesting Circuits
4QD Interesting Circuits
http://www.4qdtec.com/index.html
Circuits Archive
Circuits Archive
http://www.ee.washington.edu/circuit_archive/
Electronics Zone
Electronic circuits, schematics, hobby kits, custom electronics design & tutorials homepage. tons of free working electronic circuits & discusson forum with thousands of members to discuss anything about electronics!
http://www.electronic-circuits-diagrams.com/
Schakelingen Online
Schakelingen online is een uitgebreide elektronicasite. op deze website vind je van alles over elektronica en techniek.
http://www.schakelingenonline.nl/
RED Free Circuit Designs
A site offering various free electronic schematics for the hobbyist
http://www.redcircuits.com/
Schematics For Free
Schematics For Free
http://www.schematicsforfree.com/