Audio oscillator with tunable frequency (6 - Oscillators)

[@ivolol]

Yes, would love to have seen some oscilloscope traces of the circuit signals at any interesting points

[@an1rb]

I am unable to get a sine wave for this Wein-bridge oscillator -- I am using NGSpice. I get only square waves.

[@scottseymour8855]

In the final image, with the added on ( in blue) extension of the circuit, no values are given for the components, could you please advise as to what was chosen to be used, and advise as to why. Many thanks.

[@rbk2745]

But i believe this sound is a square wave and not a sinusoidal signal.

[@stefano.a]

Yes, but the output signal is a square wave, not a sinusoid. Please try to connect the output to an oscilloscope…
Do you know how to make an AGC in this case? I tried with diodes without success

[@ILoveTinfoilHats]

That would be due to clipping. Voltage is out of range.

[@col0342]

@@ILoveTinfoilHats My guess: that 12k resistor required for starting the oscillation makes a supraunitary gain, which will drive the oscillation's amplitude to infinity.

[@omarmaged592]

Hello sir, thanks for the great video can u help me with that if I was asked to make a audio variable oscillator using omp 741 is that the same or not and thanks alot

[@raoulselten9480]

yes you can with a 741 and you would 3 of them

[@hanamantgennur3460]

Sir op amp 3 resistors value

[@stillalive50]

The drawings are too small.