The Volcano Device is a Fuzz with one single Bias knob, leaving the standard Fuzz and Volume as it was cranked at 11 as most of guitar players like to use. But you can dial it at taste by controlling how much voltage you are feeding into the transistors by the Bias knob.
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 1 knob for 6,3mm shaft separately.
Here is the bill of material: bill of material
This project is by PCB Guitar Mania, in collaboration with Musikding. If you have any problems with the contents of the kit, please contact Das Musikding (Klaus). For technical problems please contact PCB Guitar Mania: PCB Guitar Mania support.
Here is the direct link to the manual with layout and schematic: