Cgs synth

richard you said "As for the low frequency limit, the VCO core will go
quite low with
negative VC inputs." isnt this the same as through zero ?


On Fri, 25 Mar 2005 19:18:02 -0500, Richard Brewster
<pugix@...> wrote:

> Yes, in fact I made several mods. I should upload my schematics to show
> all the changes, but I just moved to a new house and the computer with
> my drawing program is still packed up along with my modular synth. I
> changed the sawtooth output to be +/-5V, and drove the pulse wave
> comparator from that with DC coupling, so the pulse wave always tracks
> down to the lowest frequency. I added a bit of hysteresis to the pulse
> comparator on the output. I made some changes to the frequency controls
> inputs, too. I followed some ideas from the ASM VCO, which I recommend
> you have a look at for reference. Ken's VCO board allows you to build
> it in a lot of different configurations. I only built the VCO core and
> didn't use the waveshapers because I wanted to have two VCOs in 1U MOTM
> size panels.
>
> As for the low frequency limit, the VCO core will go quite low with
> negative VC inputs. But because the waveshapers are AC coupled, these
> will have a low frequency limit in the low audio range, I would think.
>
> -Richard Brewster
>
>
> dustin sedlacek wrote:
>
> >speaking of the VCO - anyone made any mods to it ?
> >
> >
> >On Thu, 24 Mar 2005 14:20:52 -0000, charlesosthelder
> ><osthelder@...> wrote:
> >
> >
> >>
> >> Hi all!
> >>
> >> I've got two VCO pcb's on order and am getting the parts together
> >> (yes, I'll get a US parts list together!)for an all-the-options setup.
> >>
> >> Can anyone tell me what the typical low frequency limit is without
> >> mods? Also, do you have any useful build info that hasn't been
> >> presented on the list?
> >>
> >> Thanks!
> >>
> >> Chub
> >>
> >>
> >>
> >>
>
>
>
>
>
> See the following URLS for the CGS Modular Synth home page:
> Main: http://www.cgs.synth.net/
> Secondary: http://otherunicorn.0catch.com/synth/
>
>
>
> Yahoo! Groups Sponsor
>
> ADVERTISEMENT
>
>
> ________________________________
> Yahoo! Groups Links
>
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/cgs_synth/
>
> To unsubscribe from this group, send an email to:
> cgs_synth-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

--
Dustin