Gqrx - Gqrx is a software defined radio receiver powered by the https://alternativeto.
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
CubicSDR - CubicSDR is a cross-platform Software-Defined Radio application which allows you to navigate the...
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
EMSO simulator - EMSO simulator is an equation-oriented process simulator with a graphical interface for modeling...
Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.