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Cgs synth

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Message

Re: Problems with Cynare filter

2008-04-19 by sasami@hotkey.net.au

>I finally got around to wiring up my Cynare and everything seems to be
>functioning correctly except the VCF. There seems to be some signal
>bleedthru. With nothing connected to VCF In, and listening to VCF
>Out, I can hear the oscillators faintly, and also a loud impact thump
>when the module receives a trigger.

The thump is probably the impact sound.

>It appears that the filter itself only has a minimal effect on this
>bleedthru noise. If I listen to +15v, I hear the same signal that is
>bleeding thru.

Your power supply is inadequate for whatever reason. At the very least, the
power rails need more decoupling near the cynare. It may also be supplying
inadequate current.

Ken
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

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