Cgs synth

Yup. My mistake. inv and non-inv are opposite, but pin numbers are
correct. Comparator it is.

Scott Deyo
The Bridechamber
contact@...
www.bridechamber.com

On Apr 14, 2007, at 2:31 PM, Mark wrote:

>
> On 4/13/07, Scott Deyo put forth:
> >
> >Maybe the 358 would be better. I just had 072s, and they've worked on
> >around 10 Bintics I've built.
> >Follow the Electronotes link on Ken's VCO page to get a full
> >description. My mod is from there.
>
> I think I found the issue here.
>
> On the Electronotes it is wired as a comparator, as shown here:
>
> http://home.att.net/~synthsource/ens76/vco2.htm
>
> Notice that on IC-7, the 2M resistor goes from the output to the
> positive/non-inverting input. That's a comparator.
>
> On the Bridechamnber site, it is wired as an inverting amp, as shown
> here:
>
> https://bridechamber.sslpowered.com/
> bintic%20vco%20outputs%20schematic.pdf
>
> Notice on that the 2M resistor goes from the output to the
> negative/inverting input. That's an inverting amplifier with
> extremely high gain.
>
>
>

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