The Penumbra Bass Fuzz is inspired by the Mammoth and Mastotron, taking elements from each but with some modifications for better usability. The Penumbra is a combination of the two, including the Subs (Low) toggle but not the ?Relax / Push? control. This has been replaced by a transformer-based pickup simulator, originally designed by Jack Orman of AMZ.
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 4 knobs for 6,3mm shaft separately.
Here is the bill of material: bill of material
This project is by Aion Electronics, in collaboration with Musikding. If you have any problems with the contents of the kit, please contact Das Musikding (Klaus). Since the modifications require some basic knowledge, this project is rather for more experienced builders.
Here is the direct link to the manual with layout and schematic: