The Mystery Prize is a guitar effects pedal that was inspired by a circuit published in a Swedish magazine from the 60s or 70s. It utilizes the CD4049 chip to create fuzzy tube sounds with an added octave tone. While it may have similarities to other pedals on the market, its exact comparison is unknown.

The build process for the Mystery Prize is straightforward, with no special considerations. However, there are several parts that need to be identified during assembly. The pedal features various controls, although specific details about these controls are not provided.

Summary created by AI and may not be accurate. See original source.