This shows the wien bridge with simple gain control that works in real life....Use NE5532 for low current output or TCA0372 for up to 1 amp output. These are good. Using certain op amps will give you crossover distortion....... Push button to start.
Also shown is the dual polarity power supply for the op amp. The resistors are only there to show it working. Also works in real life. These work for TCA0372. You can get away with 470uf for NE5532..
