@holger: Yeah, I had 1m added at first, but I wasn’t sure if I wanted to confuse people with it and then have to explain what it was later. So I tried without it, and it worked so I left it out. I agree though, it was a bad move. Thanks for catching that. I’ll try not to overthink it in the future.
RPOT_subckt.lib (188 Bytes)
Correct, I pointed this out already. Like I said, I tried several ways to try and incorporate the Tune feature into my answer but had no success beyond manually adjusting two sliders. I really like the Tune feature in general and glad you brought it up.
Yes, that’s correct. You can write a .control statement to step through and run the sim automatically at specific ratio values, but I suck at .control statements so I didn’t bother writing an example.
1.) I can see that happening if you manually type in the .LIB filename, but shouldn’t the BROWSE button automatically handle this?
2.) Yeah, that makes sense for this example. But it’s not universal, think of rotating the symbol by 180°, feeding a negative voltage in, etc. I can’t wait until KiCad 6 when we’ll be able to put short .subckt commands on the schematic as text so we can make quick tweaks to it for our specific use-cases.
3.) I dunno. I think it’s leftover data from ngspice from when I last ran the simulation. I just zip up my entire project folder after verifying them, and then upload them here.