: Sites like Electronics-Lab frequently maintain mirror links for legacy student software. Step-by-Step Installation Guide
is a legacy electronic circuit simulation tool originally released by OrCAD (now part of Cadence). While it is an older "freeware" version, it remains popular in academic settings for teaching fundamental analog and mixed-signal simulation. Where to Download pspice 9.1 student version free download
For learning Ohm’s Law, transistor biasing, op-amp circuits, and basic filters, it was more than enough. and basic filters