circuit diagram

PowerNet for electrical design and analysis of power distribution systems.

It is a great lesson for some one studying electrical engineering.

A Powerful Tool for Creating Network Diagrams & Maps

XD++ Library for by UCanCode.Net Software, an C++ class framework

XD++ Library for by UCanCode.Net Software, an C++ class framework

Simulate any Boolean algebra circuit.

Advanced tools for circuit board designing for both amateurs and professional users.

Analog circuit simulator with rapid schematic capture, many simulation features

AutoTRAX EDA integrates schematic entry, circuit simulation

A freeware, circuit based, modular software synthesizer.