Ethcircuits.com is a portal to free Electronic Circuits / Schematics. All are carefully cross-referenced into a wide range of categories. These categories include amplifiers, power supplies, solar, hobby circuits, etc…. This site includes a collection of circuits designed by JATINDER KHATTER (founder of the website). This site is a vital resource for engineers, hobbyists, students, inventors & consultants. We offer quick solutions to electronic design problems.