Hi,
I've finished my build of the Zygote from MadBean pedals, but when I engaged the pedal an oscillation appear ( exactly 5k )... I tried some different power supply with the same result. Any idea?
https://www.madbeanpedals.com/EP/downloads/fuzz/Zygote.zip
https://soundcloud.com/david-rotger-573523264/zygote-5k-hiss
Does the frequency change with the knobs or if you touch the transistors? I am no expert, but that is something I would do to try to differentiate whether it is from the charge pump or something else.
Is this pedal the only thing connected in the chain when testing?
With the pots not, but if I touch the charge pump, yes it changes.
The google site search is pretty helpful. If you try something like this, you might come across some answers: site:diystompboxes.com 1044 whine
I assume you etched this board yourself. Do you have a good trace between the charge pump pins 1 and 8? Is your grounding solid?
Posting pictures of your build can be helpful.
What did you used for the charge pump? The MAX1044?