[sdiy] Voltage references in VCO

[megaohm]

On 4/13/06, elmacaco <elmacaco at nyc.rr.com> wrote:
>
> Agreed,
>
> But how to introduce it in a way that reproduces what people hear in the
> old
> drifty moog oscillators?



  Try to figure out the drifting charactistics and simulate it using modules
(LFO, EG, etc.) patched into the VCO's CV input. For instance, use a LFO
running super (duper) slow, patch to VCO, adjust CV attenuator so only a
tiny amount of modulation gets through (across?). It works easiest if you
start with the LFO running at a more normal speed, then adjust the CV pot to
the point where you can hear the tiniest amount of modulation, back off the
CV pot just a hair, now slow your LFO way down. I do this a lot as a
'finishing touch' on a patch to give it some extra life.


"I know the evolver has an oscillator slop parameter, and ..."


Slop??? A couple of the VCOs I've made have built in slop. Non-adjustable,
of course.


peng
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