Hurray a question!

[René Schmitz]

Hi all,

My point to this is that you *need* some means of limiting in a positive
feedback loop, to avoid running into the rails. You would get pulse-ish
oscillations instead of (somewhat distorted) sinusodial with
selfoscillation. The unlinearized S-shaped response has less AC-gain near
the saturation than around GND. (The limiting diodes of the MS-20 and MS-50
filters come to mind.) Gain falls off, and the oscillation is amplitude
limited.

Bye,
 René (it could get a little louder here!)





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