This is a basic and very simple low power inverter to convert 12V DC to 120V AC. How much this inverter can handle the load depends the transformer.
Component Parts:
C1, C2 : 68 uf, 25 V Tantalum Capacitor
R1, R2 : 10 Ohm, 5 Watt Resistor
R3, R4 : 180 Ohm, 1 Watt Resistor
D1, D2 : HEP 154 Silicon Diode
Q1, Q2 : 2N3055 NPN Transistor (see “Notes”)
T1 : 24V, Center Tapped Transformer
Misc:
Wire, Case, Receptacle (for output)
Fuses, Heatsinks, etc.
Note: Don’t try to run inductive loads (motors) using this inverter.
More explanation about how its work and the component list about this simple power inverter, visit this page