Yep, sounds like a wiring/grounding issue. First there was a loose connection, now that you moved stuff around, it's broken up. And/or one of the pots (Gain or Master) is busted. They don't like heat very much. The audio probe works in conjunction with the schematic. It can be done in two ways: - Ei...

This is a fairly complicated build which gives a lot of people issues, so don't worry if you've gotten it wrong the first time around. 1. This sounds like a grounding issue and/or a cold solder joint. Reflow all suspicious looking points. 2. Yes, this seems likely. 3. Wiring is critical with this pe...

Hi Mark! This thread has been dead for a while, so sorry for the necro. But I figured it is the right place to ask questions about this project. Suppose I want to build a headphone amp with this. I'm assuming the preamp won't be enough to drive the load. How would I go about designing an output-stag...

Hey everybody. A lot of the fun with these cheapo clones (Joyo, Nux, Caline etc.) derives from the guesswork which pedal they ripped off. While most of the Caline lineup has been decoded, no one bothered to take a look the CP-15. There were some guesses, ranging from Wampler Triple Wreck to EHX Meta...