I'm a little confused, Scott. You said, "I've tried sending the
triangle out of the VCO to a few different wave shapers." The VCO has no
triangle out. Are you talking about the ATSO output, which is one of the
sine outs? Or are you talking about the SAW out? Can you upload a photo
of the output of the VCO you are using?
The Miniwave wants a 10V zero-centered sawtooth wave on the input. From
that you can dial up a sine wave out, among many other waveforms. The
MW needs to be matched with the driving sawtooth to minimize its own
glitch in the sine wave. It has trimmers for that. If you tune it to
one VCO it may still have a glitch with another. Maybe you tuned the MW
to your PAIA VCO.
-Richard Brewster
http://www.pugix.com
c10h14no2i wrote:
triangle out of the VCO to a few different wave shapers." The VCO has no
triangle out. Are you talking about the ATSO output, which is one of the
sine outs? Or are you talking about the SAW out? Can you upload a photo
of the output of the VCO you are using?
The Miniwave wants a 10V zero-centered sawtooth wave on the input. From
that you can dial up a sine wave out, among many other waveforms. The
MW needs to be matched with the driving sawtooth to minimize its own
glitch in the sine wave. It has trimmers for that. If you tune it to
one VCO it may still have a glitch with another. Maybe you tuned the MW
to your PAIA VCO.
-Richard Brewster
http://www.pugix.com
c10h14no2i wrote:
>I took some fuzzy photos of my scope, so you can see the glitch Im
>getting. I posted them in a new folder in the file section (vco
>wavesahape glitch). They are very fuzzy photos, but I think you can
>see them enough to get the idea. W/ the wave mult, it doesn't matter
>what shap Im making the wave, its alwas got a spike in it.
>I hooked up the miniwave to my old paia vco, and I get no glitch. I
>then hooked up the wave mult to my paia vco and I get only a tiny
>tiny glitch, but you can't hear it. Only thing is, I dont really use
>the paia anymore.. it doesn't tune up very well at all.
>I didn't take a photo of this, because its very subtle, but the saw
>wave out of the CGS vco has a little bit of a rounded top, but the
>bottom of the wave is sharp.
>I didn't leave out any caps or anything when I built the CGS VCO.
>Elby accidentally sent a bunch of 10n caps rather than 100n for the
>decoupling caps. Could that make a difference? Otherwise, if you can
>think of somewhere for me to add caps or change them or anything, I'd
>really appreciate it.
>
>Thanks,
>Scott
>
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>