FRETS.COM. Guitar Wiring and Pickup Modifications. Continuing from the previous page, here are a selection of modifications that can be done to your guitar's internal wiring and pickups to change or increase the range of tones available. 1 - Phase reverse switch Suitable for: Most guitars with two or more pickups.
Materials required: Guitar Repair Topics Guitar Repair Articles by Fret Not Guitar Repair. Adjusting Action For Playability & Tone Action is a term used to describe the way an instrument is adjusted and how well it plays.
Action is most commonly thought of as how high the strings are from the frets.