Make your own effect pedal Like a Pro! DIY OTA Compressor Kit With controls for Volume,Compression and attack. This Kit is super easy to build and very rewarding The PCB is designed to fit perfectly inside a 1590b enclosure Designed to be assembled with Onboard components so no wires are required (see illustrations) Please note- This Kit includes - 1-PCB 2-In/Out Jacks 3-3PDT Footswitch 4-DC Jack 5-Led List of components,assembly diagram & Drill template can be found at the Downloads page.