WSG pitch CV in mod issue

shoggoth · Joined: Oct 18, 2013 Posts: 1 Location: USA

DIY noob, third project I decided to tackle the WSG.
Built it stock and sounds\works great, now onto modding

Ive added a 9v power adapter and the gate trigger out mods, work fine, but when I attempt to breadboard the CV pitch in mod for the oscillators, the pitch raises dramatically for that oscillator as soon as the wires to the pot are connected to the rest of the mod circuit. This is without anything coming in as far as CV.

Now, the pitch does change\work when something is connected, but Id prefer the oscillator maintain its original scale. Any suggestions?

cds56 · Joined: Jan 13, 2011 Posts: 18 Location: Canada

Well I'm no expert, however if it's the scaling that's off, maybe you've fudged a resistor value value or two?

Kosmo Mishka · Joined: Apr 18, 2013 Posts: 47 Location: Moscow

The same issue. Did you find a solution? Maybe pot should be disconnected when you add CV?

UPD: OMG, I did not notice that some holes on kludge are are connected by traces. Cutted them, and it works. But the range how WSG reacts to cv is very low, played 4 octave sequence on minibrute and it only slightly audible to hear changes in OSC pitch. Is lowing 4.7K will give much range?