AW: waveshaping

[Dr. Jörg Schmitz]

>This looks like a nice and neat solution - thanks.  I will try it when
I >get a chance.

>Michael

>>It's a very basic schematic, but all what YOU need (if the dividers
are
>>already built up) is the integrator with the 4066-switch for shortcut
>>of the capacitor. I have built up this subharmonic oscillator 4 times
>>for my trautonium, it works well. If you want to reduce tracking, the
>>voltage input at the inverting input of the op-amp could be connected
>>with the CV of the TOP-oscillator. I tried this, the amplitude of the
>>saw-waves will be all the same for different oscillator frequencies.


Ah, sorry, I have missed to say, that you need a monoflop 
[thanks, m.czech ;-)] between your divider and the 4066
(only a very short pulse for the 4066).
Otherwise you get

  /  /  /
_/ _/ _/  etc.

and not

  /  /  /
 /  /  /
/  /  /   etc.


BTW: The capacitor between the two schmitt-triggers (40106) creates
a defined, short pulse.

J.S.