For Ham Challenge week 22, the challenge was to simulate an electric circuit. The recommended web-based tool, CircuitLab, had a strict time limit without creating an account, so I decided to use KiCad and its built-in spice functions instead as this seemed a more useful skill anyway.
Here's a simple common emitter amplifier.
#HamChallenge @hamchallenge HC22S
I followed the guide to SPICE simulation on the KiCad site, and spent a while figuring out why my non-SPICE Vcc rail wasn't working (you have to use a SPICE VDC source instead for it to be recognised). But putting test points in the circuit and re-running the simulation helped me figure out what was wrong.
I think it took me about half an hour to get there. (I do have previous KiCad experience.)
This has definitely made me think about doing more analogue circuit design in future!
@ian
Could I suggest using LTspice in future? It's more of an industry standard, despite only being free as in beer. Of course the interface is terrible but it's an excellent tool.
@ian
If you're Linux only it works fine under WINE.