I would like to know if anyone knows where transformers can be had(for medium to high power applications) for less than a small fortune. I've also heard of toroids that you can wind yourself, but what if you need 20A @ 100V for a DC supply?? This should probably be its own thread, but I'm lazy. I would REALLY APPRECIATE any advice on this.
One could relatively easily wind a multitap transformer so they could have a selectable ranges of AC measurement voltages (10V,100V,1000V...). Perhaps not.