[sdiy] Again- LFO, working

xmurz at gmx.de xmurz at gmx.de
Fri Mar 29 13:22:01 CET 2002


Hello!

The 2 LFO's I tried (ASM-1 and Modulus) were not working.

The Modulus e-zines can be found at:
http://www.modulus.wavesynth.com/modular/modular.htm
(as somebody asked for the address)

I now got the ASM-1 LFO to work nicely.
The problem was, that I had the non inverting opamp
on one TL082, and the inverting opamp on another TL082.
Now that I got both parts on one TL082 it works.
(Don't ask my, why I dit it with 2, to begin with.)

Now my question:
Why is it not working with 2 seperate opamps???

Then there is the 22R Resitor. I substituted a
trimmer for that part, because a 22R value caused
my LFO to go towards (aproximately) 10V + without
returning back down on the lowest LFO speed.

A trimmer enables me to get to poti down to very
low speed without going up to 10V+.
The trimmer will set be set to >22R

Is that normal???

Will all parts of the ASM-1 work on a +-12V PSU?

Regards,
  Hans

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