This is transistor inverter circuit diagram 100watt it sizes are easy circuit. Because of use the all transistor, have no the integrated circuit. It performs to modify from battery 12V be 220V 50Hz signal square wave. By the circuit works with transistor BC558 x 2pcs and RC assemble the circuit produces 100HZ frequency from that time. There is the transistor BC558 2 again , build the circuit divides by 2 times frequency be left 50Hz frequencies from that time. There is the transistor BD139 and 2N3055 each other be Darlington for drive AC transformer 12V CT 12V : 220V, enhance ac voltage 12V from be 220V 50HZ fully be usable next. The detail is other see in inverter circuit diagram.
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