Cgs synth

> wow its been a while....hi folks
>
> Im planning a drone voice and was thinking the utility lfo module would be
> a simple oscillator if run at audio frequency. Anyone see a problem with
> this? The freq is set by the 47n cap on the integrator, maybe make is 4.7n ?
> I can experiment.
>
> 2 lfo, will give 4 voices, 4to1 mixer,a filter, then the tube/vca

--- In cgs_synth@yahoogroups.com, Richarius Molindarius <richmolindarius@...> wrote:
>
> Using a pair of them for a 'drone' could work out quite well. I've
> almost completed a noise machine here, based on 4 x Voltage Controlled
> Low Frequency Oscillators. Each of them, has the ability to modulate
> 2 of the other ones. (It's all hardwired, with attenuators for each
> modulation input.)
> The other day, when I set the 4 x VCLFOs to the same frequency and
> just let them oscillate away, the 2 of them that did not have matching
> transistors with a tempco, started wandering in pitch, every slowly.
> The sound that started happening was absolutely incredible as the
> 'beating' started changing more and more over the hour or so that it
> was running.
> That as 1 of it's many functions. With each of the VCLFO's outputs
> being switchable between triangle or squarewave and all of their
> oscillation periods being approximately 0.1hz up to beyond human
> hearing for 2 of them and about 3,000hz for the other two ... the
> harmonic destruction capabilities of the unit are mindbending. :D
> Once I add 2 outputs to it (it has stereo speakers in it's cabinet)
> I'm going to toss it up on eBay. After of course, having shot a demo
> video for it to post to my youtube site.
>
> --
> Take care,
> Warmth and Peace,
> Rich
>
> http://www.damian.deathlehem.com/ - my modular synth
> http://www.soundcloud.com/Richarius - my latest composition snippets
> http://www.youtube.com/dolphinicus/ - various module videos of mine / etc.
>

>On 9 November 2012 00:28, spgjmf <spgjmf@...> wrote:
>> wow its been a while....hi folks
>>
>> Im planning a drone voice and was thinking the utility lfo module would be
>> a simple oscillator if run at audio frequency. Anyone see a problem with
>> this? The freq is set by the 47n cap on the integrator, maybe make is 4.7n ?
>> I can experiment.
>>
>> 2 lfo, will give 4 voices, 4to1 mixer,a filter, then the tube/vca
>
>It will make a sound for sure, but don't expect it to be entirely
>stable. It will most likely drift over time, not track naturally over
>the range of the pitch pot, and drift when you turn the shape pot. If
>you're fine with that, go for it.
>
>--
>/Ove
>
>Blog: <http://blog.gg8.se/>
>
>"Here is Evergreen City. Evergreen is the color of green forever."
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>Yahoo! Groups Links
>
>
>
>

--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> I don't see any reason why it would not be stable. The parts of a VCO
> circuit that cause instability are in the voltage to current converter. The
> utility LFO doesn't have this section of circuitry at all!
>
> Ken
>
> >On 9 November 2012 00:28, spgjmf <spgjmf@...> wrote:
> >> wow its been a while....hi folks
> >>
> >> Im planning a drone voice and was thinking the utility lfo module would be
> >> a simple oscillator if run at audio frequency. Anyone see a problem with
> >> this? The freq is set by the 47n cap on the integrator, maybe make is 4.7n ?
> >> I can experiment.
> >>
> >> 2 lfo, will give 4 voices, 4to1 mixer,a filter, then the tube/vca
> >
> >It will make a sound for sure, but don't expect it to be entirely
> >stable. It will most likely drift over time, not track naturally over
> >the range of the pitch pot, and drift when you turn the shape pot. If
> >you're fine with that, go for it.
> >
> >--
> >/Ove
> >
> >Blog: <http://blog.gg8.se/>
> >
> >"Here is Evergreen City. Evergreen is the color of green forever."
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>