Loud hum emitting from output stage of Raspberry Pi guitar pedal
I had made an incorrect assumption about the pins of the Jack (referenced here: https://www.digikey.ca/en/products/detail/switchcraft-inc/SN37A14B/1288988). I had assumed the pin orientation was parallel, assuming the furthermost pin from the base would be the &quot;tip&quot; or positive, and that all subsequent pins would be &quot;ground&quot;. However, that proved to not be the case. After resurrecting my issue, the loud &quot;hum&quot; subsided. Thank you all for your kind suggestions! There is still a slight amount of noise remaining, which I am sure will be fixed by your suggestions. But the bulk of my issues have been fixed. Thank you!