This circuit converts a 12 V continuous voltage from a battery into an alternating voltage of 110 V (or more) to supply lamps and other loads that do not require 60 Hz and a perfectly sinusoidal voltage. The transformer has E1 + E2 with 46 + 46 turns of 18 AWG wire, E3 + E4 with 31 + 31 turns of 13 AWG wire. E4 has 330 turns of 20 AWG wire.
