The Underminer adds some fuzz to the guitar signal and lowers it by one or two octaves. The one-octave setting tracks cleanly, at two octaves it's glitchy. The filter can be used to set thick bass, thin treble or anything in between. When playing multiple notes at once, pitch jumps, pulsating or wobbling tremolo effects can be created. With the filter on, the pedal transforms into a crazy, psychedelic filter sweep and futuristic sci-fi sound.
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 3 knobs for 6,3mm shaft separately.
Here is the bill of material: bill of material
This project is by PedalPCBs, in cooperation with Musikding. If you have any problems with the contents of the kit, please contact Das Musikding (Klaus).
Here is the direct link to the manual with layout and schematic: