Oops! (posted to FB groups)
A Wien Bridge Oscillator that’s not a bridge. It’s missing the negative feedback side of the bridge! That must mean that the amplitude of the sine wave changes with changes in the temperature, supply voltage, and other conditions. Not a good design!
http://www.seekic.com/circuit_diagram/Signal_Processing/Oscillator_Circuit/WIEN_BRIDGE_OSCILLATOR_I.html
