The Octa-Plus is an easy to build no-knob analog octave up that matches perfectly with any of fuzz pedal.
This kit contains the PCB and all necessary parts. The enclosure can be selected.
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: