When talking about open source tools, here are some: KiCad may be used as a schematic entry tool for ngspice, especially for discrete or PCB-based electronics. You may watch several simulation examples (including oscillators) here: https://forum.kicad.info/t/simulation-examples-for-kicad-eeschema-ngspice/34443. KiCad integrates ngspice internally, but may also provide external ngspice with netlists for simulation.... - Source: Hacker News / 10 months ago

Https://ra3xdh.github.io It's only missing a solid components library like LTSpice has. - Source: Hacker News / 10 months ago

You should consider using qucs-s https://ra3xdh.github.io/ a fully open-source fork of qucs still currently maintained and improved. - Source: Hacker News / 10 months ago

Https://ra3xdh.github.io/ (QUCS-S - seems to be active). Source: 11 months ago

Https://ra3xdh.github.io It's still missing a comprehensive component library like LTspice does, though. KiCad can also simulate circuits through NGSpice, but it's missing a library and suffers from a lot of quirks. - Source: Hacker News / over 1 year ago

Logisim is a nice FOSS software in this space as well. I've designed a CPU in it during COVID, which then became a never-finished breadboard project that stilll looks at me accusingly from some corner of my living room. Oh well. In addition to boolean logic, Logisim also includes more advanced components such as static RAM, as well as interesting things to drive with it, such as displays. It was developed for use... - Source: Hacker News / 8 months ago

I am trying to define an xbps-src template for logisim-evolution, a Java app that requires Java 16. I am using depends="virtual?java-runtime" and, as expected by reading etc/defaults.virtual, OpenJDK 8 is used. Creating a etc/virtual file is ignored in .gitignore, so I guess it is made to be used with local packages. Using depends="virtual?java-runtime-17.0.5+7_1" works, as OpenJDK 17 provides that exact version... Source: over 1 year ago

Logism evolution works great and is quite modern. https://github.com/logisim-evolution/logisim-evolution. - Source: Hacker News / over 1 year ago

According to Logisim it creates the correct sequence for full stepping on a bipolar configuration. Falstad's Circuit simulator is another one you might try. Source: over 1 year ago

Did you check logisim-evolution? It is an active fork of logisim maintained by several lecturers at the Bern University of Applied Sciences. Source: over 1 year ago