Problem with Mxr dynacomp and Mxr envelope filter.

[HitTive]

Hi, I made Mxr dynacomp from tonepad, When the pot sustain is max effect  making strange noises. When the pot sustain is 90% sound is good and effect work.

And second think:
I want to make envelope filter http://tonepad.com/getFile.asp?id=113 . I printed this: http://img859.imageshack.us/img859/9165/dpdtd.jpg . This is good wiring?

[Mark Hammer]

The Tonepad layouts for both those pedals work fine.

The sustain pot is 500k, in series with a 27k resistor.  Is there any possibility you have something less than 27k?  That would explain why the 3080 chip misbehaves when you go above 90%.

[HitTive]

I noted that when i turn pot 500k to max, the sound is strange (like overdrive) and after 1 or 2 seconds the compressor work fine. Resistor is 27k

[Mark Hammer]

Whenever there is a problem that changes over time, one shuld immediately consider an electrolytic capacitor, or something that involves an electrolytic capacitor.  It is starting to sound like maybe you have a problem with one of the capacitors, perhaps the 10uf one that goes from the 150k resistor to ground.  Is it in right?