I’ve never done this before.

If you are a beginner, spend some time at the sites in the Do-It-Yourself section of our Links Page. Especially Aron’s Stompbox Page and GEO. These sites have a lot of basic information you need to know before you start a project from this page. Knowing this information is a prerequisite to beginning any of the projects on this page. 

Here are some of the highlights from those links.