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
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.
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