Make an Easy Guitar Distortion Pedal (STEP BY STEP!) Important Step: Resistors. Resistors do basically what it sounds like they do! Resistors Resist the Important Step: Capacitors. Read this and read the WHOLE THING! www Now.. the Diodes! The diodes in a distortion pedal are what make a distortion pedal a distortion Important Step: Diodes! Diodes are used in circuits to stop electricity from flowing back into the See all full list on instructables Design Your Own Distortion | General Guitar Gadgets Design Your Own Distortion By Rikupetteri Salminen History of Distortions. In the mid 50’s, when electric guitars became popular, all amplifiers were designed for vocals, and they didn’t really give the edge guitarists wanted.