The Gristleizer, a cool pretty extreme tremolo/filter
I built it and it works, but I don't know if it's 100% ok.
Maybe someone could help me go over it? I've been though it a few times, and I think it's good, but I could have missed something.
I'm having a few problems. However, all the problems are reported in the build thread
here so it seems alot of people is having issues with it..
so maybe it's not my fault
![](/images/smiley/anim_confused.gif)
but some people seem to have successfull builds of the PCB.
I made my vero from the Endangered Audio Research schematic found
here (assembly guide and manual).
Note that this effect need +/- 9v, so a voltage inverter is needed.
![](http://guitar-fx-layouts.238.s1.nabble.com/file/n11134/The_Gristleizer.gif)
Problems:
* It distorts alot and I need to put the volume down on my guitar alot to get clean signal. It distorts alot more in VCF mode.
* Ticking / thumping
Putting a 10uF cap between the wiper and ground of the depth pot helps alot, but still not good enough. This can maybe be solved with shielded wires though.
* The trimpots are really hard to set, not matter how I tweak I can't get a decent triangle waveshape.
* The tremolo sounds good, but the VCF sounds muffled and not very exciting...
check out my building blog at www.parasitstudio.se