So, I'm working this project and I think it would be really cool to be able to draw out a schematic of a circuit and get an idea of what that circuit will do using a computer simulator as this would be cheaper, faster, easier, and I could do it while sitting in a cafe on the weekend rather than sitting in my basement workshop.
I've looked into various solutions and I have only really found two. The first is great! Except that you can't save your files, and it seems to have trouble dealing with feedback loops, but the interface is rocken and I love the way that you can play with things. It is a java applet available here...
The second is open source Xcircuit which uses spice3 which is supposed to be a lot more powerful! I've just spent yesterday afternoon and this morning working to get Xcircuit to do what that simple little applet does, and I have to say that Xcircuit is such a huge PITA that I have lost patience. It seems like the software is not actually supposed to *help* you design circuits but rather there to get you to learn a *whole lot* of obscure stuff about how to run Xcircuit. Not really very satisfying at all.
Are there any better solutions out there? If that applet had more functionality it would be great. If Xcircuit were a bit more accessible I'm sure it would be great too...
As is stands I'm thinking that I'll be better off just working with chips and my oscilloscope.