[sdiy] Again- LFO, working

[Scott Gravenhorst]

No reason for it not to work.  I'd bet a doughnut that
it was a wiring error and that if you built it again that
way (starting from scratch) it would work.  I have done
this, where I build something and it doesn't work.  I simply 
rip it apart and starting over WITH THE SAME PARTS, the same 
way, and it works fine.


>>From: xmurz at gmx.de
>>To: synth-diy at dropmix.xs4all.nl
>>Subject: [sdiy] Again- LFO, working
>>Date: Fri, 29 Mar 2002 13:22:01 +0100 (MET)
>>
>>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
>>
>>--
>>GMX - Die Kommunikationsplattform im Internet.
>>http://www.gmx.net
>>
>
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