Is the circuit ok? also please explain "What the circuit is doing"? Answered
The circuit shown is supposed to produce AC where v1 is a 9v battery, c1,c2,c3,c4 are capacitors and t1 is a transistor (BD140), R1 is a resistance
AC squarewave of 140-150 kHz is required .........sorry for poor image quality please use "magnifier " if needed.....Thanx in advnce!