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Cgs synth

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Message

Re: Wave Multiplier question PWM quandry

2007-08-11 by sasami@hotkey.net.au

Reduce the value of the resistor between pins 1 and 2 of IC4a. This will
reduce gain, expanding the control range.

Ken


>Finally got the wave multiplier built, its a monster and better than I
>anticipated (which was a lot). Grinder and the lockhart are running
>properly, the triangle section seems to function as I understand it
>should. However, the square is acting strange. I am only passing a
>signal upon the condition that: the PWM manual pot is roughly centered,
>and then the manual offset is also at about center. The PWM pot has
>perhaps 20 degrees of sweep from center to either side, at that point
>it is cutting the signal entirely. Same outcome with any incoming cv to
>the offset, or PWM input. I've double checked all of the values on the
>board as well as the pot, they all seem to check out.
>
>
>Any suggestions?
>
>Cant wait to get it sorted and build the second one.
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
_______________________________________________________________________
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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