> > ngspice -b -i powersupply2.cir -r powersupply2.out; raw2gw > powersupply2.out powersupply2.gw > Fatal error: t1: transmission line z0 must be given
Like I pointed out earlier, SPICE has no model for a transformer. When you netlist your schematic, the transformer (T1) is included into the SPICE netlist. However, ngspice (like any SPICE) thinks you are instantiating a transmission line with device T1. Since you don't give the proper parameters for a transmission line, ngspice errors out. I suggest you Google "SPICE transformer model" or something like that. Also go over to the LTSpice user group (on Yahoo) and look through the archives. ISTR the issue of simulating transformers comes up every couple of years there. Stuart
