Power inverter circuits perform the task of converting direct current (DC) electrical energy into an alternating current (AC) electrical energy. Most power inverters made for North America convert a 12-volt DC input source into 120 volts at the inverter outlet.

Many power inverters are made for home or automobile use. In fact, you could construct a simple homemade power inverter from a few electronic parts.

Cut eight pieces of wire. Take out 1/2 inch of insulating material from the ends of each wire. Then solder one end of the first wire to one of the end terminals on the center-tap side of the transformer. Solder one end of the second wire to remaining end terminal on the center-tap side.

You should then twist  together negative capacitor lead, which is shown by a “–” sign on the component case, with one of the leads from the first 800-ohm resistor, the free end of the first wire, and the collector lead from the first transistor. Then solder the connection.

Twist together also the positive capacitor lead with one of the leads from the second 800-ohm resistor, the free end of the second wire, and the collector lead from the second transistor. Solder then the connection.

Soldering one end of the third wire to the center-tap on the transformer should be fine. Loosen the top screw on the first battery clamp terminal, then attach the free end of the third wire to the screw. Tighten the screw so that it holds the wire firm to the battery clamp terminal. Solder the wire to the terminal.

Twist together again  one end of the fourth wire with one of the leads from the first 80-ohm resistor, one of the leads from the second 80-ohm resistor, and the two transistor collector leads. Solder the electrical joint. Loosen the top screw on the second battery clamp terminal, and link the wire to the screw. Tighten the screw so that it holds the wire firm to the battery clamp terminal. Solder the wire to the terminal.

Twist together one end of the fifth wire to the free end of the first 800-ohm resistor, and solder this connection. Twist together the free end of the fifth wire to the free end of the first 80-ohm resistor, and with the base lead on the second transistor and solder the connection.

Twist together one end of the sixth wire to the free end of the second 80-ohm resistor, and with the base lead on the first transistor. Solder the connection. Twist together the free end of the sixth wire with the free lead from the second 800-ohm resistor, and solder the twisted wire pair.

Solder one end of the seventh wire to one of the end terminals on the transformer side lacking a center-tap. Put a ring terminal over the free end of the seventh wire, and then solder the wire to the terminal. Solder one end of the eighth wire to the remaining transformer terminal. Put the last ring terminal over the free end of the eighth wire, and get  the terminal soldered to the wire.

Link the battery clamp that is connected through wire to the center tap to the negative battery terminal. Link the remaining battery clamp to the positive battery terminal.