MOD Kits DIY’s The Contortionist is an all-analog fuzz box that produces fuzz with layered octave overtones similar to those produced by an e-bow. Its frequency multiplier circuit creates harmonics that swell and recede depending on gain setting, pick attack, position on the neck, and pickup. It operates on a 9-volt battery or AC adapter. MOD Kits include instructions and use point-to-point wiring. All have a pre-drilled enclosure and include all necessary parts. Visit www.modkitsdiy.com.