Categories Effect Pedal Build Rat Build Your Own Effect Pedals – Rat (Part 1) Schematic Post author By Mark Post date 23Jan2020 No Comments on Build Your Own Effect Pedals – Rat (Part 1) Schematic This time I show how I make a classic Distortion guitar effect pedal based on the ProCo Rat. In this video we lay out the basic schematic for this circuit. Here is a copy of the schematic for the unmodded circuit: Rat Schematic (unmodded) ← Marshall Vintage Modern 2466 100 Watt DIY Fix Your Own Amplifier Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.