A different way to wind the coils and their arrangment.
The attached photo of the coil layout is powered from a 12 volt battery which powers a 750 watt inverter giving a 120 volt AC output. This powers a Hammond 1182 L 30 toroidal transformer with a center tap and (2) 30 volt AC outputs. These out puts are180 degrees inverted and are changed to DC voltage at about 12 volts and 4 amps using heavy duty diodes . Each of these powers the primary coils that are bifilar wound with 136 turns of 16 guage magnet wire. Over these primaries is wound the paired output coils that are wound with 900 turns of 22 guage magnet wire. These are wound in series in such a way that their outputs add to give 2 out puts of 200 volts that are 180 degrees inverted. I plan to add about 70 more turns to each secondary coil to give 220 volts to each leg.
When the coils are powered up without a load the the readout of the inverter is zero. When a load of (2) 100 watt light bulbs is added to one of the output coil sets, the wattage on the inverter reads 174 watts. I am still getting additional test equipment to get an exact power reading of what happens with the light bulbs. The secondary paired output coils are wound in the fashion of Don L. Smith's device that is a high frequency device. I am planning to wind one set in the pattern of Chris's paired output coils to see if I can get better output with higher amperage.