35 - the next step

[jhaible]

> > I have further improoved the MS-20 style filter.
> 
> Yes you did. The hi-pass modification works well and the overall
> performance is better. I still though there was too much clipping so I
> started messing around with it and found why. The circuit doesn't
oscillate
> symmetrically the diode pair are there to help as much as they can but it
> doesn't help much. That's why I thought the oscillation sounded
different,
> I'm only listening to half a sine wave. The ota version doesn't put out a
> true sine eater but it is symmetrical and absolutely wonderful to listen
> to.

Strange; these latest changes of mine would only limit the cutoff range
of the filter. I had a good symmetrical almost-sine at self oscillation
from the start. (Even with the first version.) Definitely nothing like half
wave
rectified sine.

> Juergen.... if you like this one please do the ota version you'll never
> regret it.

Be assured I will build the OTA version in the near future !

JH.