Oscillator

Needs some modifications to work im real! http://everycircuit.com/circuit/5116557989511168

Yes you'd need an amplitude stabilization circuit of some kind from keeping the amplitude from clipping.

clipping is the easiest method to stabilize amplitude. But if gain is to high (btw in this circuit to low and not running at all) the clipping is getting really ugly. So keep the clipping little close to perfect gain of a inverting amp with gain 29+ (use input resistance to inv amp 1k and remove the at filter out 1k and set feedback 75k to 29k+ or 30k) and its only clipping a little. But this clipping even it looks bad is a common method to stabilize this kind of oscillators. With the dangerous to come to close to gain 29- then the oscillator does not start or dies out... Any regulation introduce harmonics which have to be filter as much as needed. Doen't matter if a bulb, diode, clipping (or any other nonlinear transfer function of an amp e.g. "tan hyperbolic") is used!

Thanks man !

You are welcome!

Bulbs introduce little harmonic distortion in comparison with other methods, but yes i agree they should be filtered out. If the oscillator is supposed to work with only 1 frequency and isn't variable, then even a relaxation oscillator will do the trick, provided the necessary filtering.

But the effort to filter is lower if you have already a signal which is close to a sine wave.

Yes, that's true.