For those with unlimited parts bins, probably not an issue.
I have what I think of as a ‘doable’ parts bin for where I can mix and match values -parallel and/or series- for testing (and then I order quality parts for a final crossover build). More often than not I’m of course missing values I’d like for testing / measurements. So, for coming up with pairing caps in series or inductors in parallel its always been using online calculators and then plugging in multiple pairs, more of a hit-and-miss trial-and-error based upon what I’ve got in supply. So I just made a list of values and number of parts (resistors and capacitor lists) and provided the lists to Grok and requested appropriate pairings towards target(s) based upon my supply bin. It quickly provides solutions, and if not to your precise target a couple of best options. A real time saver.
Two 1mH coils in series is only 2mH if you don’t couple the magnetic fields. Place the coils on top of each other as if it were one big coil and the pair will be much more than 2mH. Did your time saver know that?
I’ve just done it for my resistors and capacitor collection at this point. For some reason I have a boatload of inductors, and when close I’ll unwind a bit, measure and mark for the next time.
Thx, I just queried, and it came back with detailed unique formulas for parallel vs series, placements recommendations, mutual inductance… some wild interactions
Another useful Grok query has been in developing LPad circuits (based upon my current parts bin of resistors) for a project I’m working on.
Quickly provides Rs and Rp matchings with associated attenuation, and provided Zin (without prompting) which will of course be needed for development of the high pass filter for the tweeter. It then can provide attenuation values (Rs and Rp) for a desired targeted Zin, which has been really useful.
