In this circuit we can use a 2N3904 for the NPN circuit and we can Use 2N3906 for the PNP circuit
These circuits only uses 4 resistors 2 Transistor and a 230v to 12v center tapped transformer
The parts
2 - 1k resistors
2 - 500ohms resistors
2 - 2N3904 or 2N3906 transistor
1 - 230-12v step down transformer
Tips
For NPN inverter the positive terminal of the battery goes to the terminal of the CT Trans
and For the PNP Reversed
