I'm sure it's a POS program, at least from a user interface perspective. The circuit may or may not be a POS, regardless, my output on the transformer most certainly is not what I should be seeing, theoretical vs real electrons or not. Fine, the ground wasn't in the circuit before. It is now and I still can't get the transformer to output correct voltages because I'm not a transformer designer and don't have the impetus to try that for a living. Why are we picking turns ratios instead of output voltages here? The only way I've been able to get close on this is by specifying a turns ratio of 0.36 which to my mind isn't a turns ratio at all. The problem with 0.36 is that, while the output voltages come close, the -1.3V I'm supposed to be getting below ground is 1.8V or so. If I get close to the -1.3V then the outputs go to the mV range. POS interface.