That scratchiness is a feature. It's really cool with echo...
Has anyone used a vactrol? It should still be scratchy, but perhaps
less noticable. What about an OTA? They can be set up as
programmable resistors. The LM13700 would be an excellent starting
point for experimenting.
Seriously, do you guys have to tweak *every* knob? Maybe you should
date more. Or drink more if you're already married.
Chub - Beefeater, a drop of dry vermouth, a dash of orange bitters and
two olives. Shake in chopped iced. It keeps my family safe.
-- In cgs_synth@yahoogroups.com, "peng3002" <peng3002@...> wrote:
Has anyone used a vactrol? It should still be scratchy, but perhaps
less noticable. What about an OTA? They can be set up as
programmable resistors. The LM13700 would be an excellent starting
point for experimenting.
Seriously, do you guys have to tweak *every* knob? Maybe you should
date more. Or drink more if you're already married.
Chub - Beefeater, a drop of dry vermouth, a dash of orange bitters and
two olives. Shake in chopped iced. It keeps my family safe.
-- In cgs_synth@yahoogroups.com, "peng3002" <peng3002@...> wrote:
>
> I posted this to the SDIY list. Shoulda tried here first:
>
>
> I have two Synthacon VCFs built on CGS boards. The third one is on the
> way but before that I need to solve I problem I'm having. Turning the
> Resonance pot produces a scratchy noise. I think this is a common
> problem others have had, too. I'm under the impression that this is DC
> through the pot. I've tried wiring a cap in a variety of ways with no
> luck.
>
> Has anyone built this VCF and DO NOT get scratchiness when turning the
> res pot? To test, turn the inputs down (off) , turn the gain all the
> way up, and turn the res pot back and forth a bunch of times.
>
> I have tried swapping pots (all Alphas, though).
>
> I have two completed modules and one on the board so any suggestions
> or ideas will be carried out immediately.
>
>
> Thanks in advance,
> peng
>