a free and powerful circuit simulator

Videos

A look on the application can be taken here:

DC analysis (2:47min)guidance in performing the most simple simulation
Introduction 1 (4:29min)about the first steps with the application
Introduction 2 (3:38min)about working with the application
a little example (7:14min)by Elias Monteiro
Subcircuits (6:42min)embedding of circuits into a parent schematic
Tuning (5:31min)shows how to change component values with sliders
Optimizing (8:32min)automated optimizing of a stub filter
QucsTransline (4:26min)the transmission line calculator


Screenshots

Click on the pictures to see them in original size.


schematic editor


DC bias shown within the schematic


optical telecommunication system


diagrams


running Octave scripts


transmission line calculator


component designer


filter designer


attenuator designer


PCB layout with KiCAD