Hello again. I seem to be making incremental progress on my pedals but I am back for more guidance. This forum has helped me fix my last three pedals and I now have seven under my belt.
I have just put together a Death by Octaver from PCB Guitar Mania. I like the sound it makes but there are clearly a couple of issues.
The first issue is that the tone knob seems to work backwards almost. When turned to the left the volume is quite loud and when to the right it is far quieter. Below is a video.
The second issue is that when I roll the gain knob down I seem to get this strange feedback noise. Below is a video of the pedal so you can see what I mean. The feedback is particularly noticeable at the end.
Does anybody know what might be the cause of these issues?
***I did install C3 backwards twice in a row and had to remove it, breaking the metal rings on the PCB. I connected the legs of a 4.7uf capacitor to pin 6 of the IC and pin 1 of the transformer***
You can see both sides of the PCB below and an audio trace I did. I have since reflowed solder after the audio trace.
https://imgur.com/gallery/UM1vGEQThe build docs are on the link below on page 5
https://pcbguitarmania.com/.../Death-by-Octaver-Building...
Thanks in advance!