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The guide to SMPS switching power supply for both designers and buyers. Provides circuit design tutorial, schematics, topologies overview, PCB design rules. Find power supply by spec. Includes basic power electronics and electrical engineering refere...

CadSoft EAGLE PCB design software is the best PCB design software available for designing printed circuit boards. Support & Tutorials available for free.

Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives

Learn the practical steps involved in how to build electronic circuits. Learn to solder and make professional circuit boards on the cheap.

NI leverages commercial technologies, such as industry-standard computers and the Internet, to deliver customer-defined automation, test and measurement hardware and software solutions for engineers and scientists.

Open Circuit Design: Home Page

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

YouTube is a place to discover, watch, upload and share videos.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Free PCB layout software - Low cost circuit boards - Top quality PCB manufacturing