Re: Zakk Wylde ZW-44 Op-Amps and Gain Control

Posted by kmc212 on Jan 16, 2019; 7:04pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/Zakk-Wylde-ZW-44-Op-Amps-and-Gain-Control-tp45348p45352.html

Hello.

Thank you for the reply.

I have tried TL072, JRC4558D, MN1458, NE5532, LM308, LF353. None worked. It makes me believe there may be an issue with the circuit. I am using a 2N5088 transistor for Q1. Should the transistor have an effect? The distortion sounds very thick and fuzzy. It also cuts off quickly and does not sustain or feedback like a high gain pedal.  

I am going to check the pot to make certain the correct pot is being used. Sometimes I wire things incorrectly.

I did review the schematic and noticed the pot is after the diodes like any gain control. That's what made me question the wiring.
 
Thanks,