The ProCo Rat 11 is a guitar pedal known for its unique sound modification capabilities. This model eliminates the FET-switching feature. It utilizes film capacitors for most of its operations, except those denoted as CER, which use ceramic capacitors. The RI 3 component in the pedal supports the FET bypass switching. However, this can be omitted if the user prefers a true-bypass setup.

Summary created by AI from the original source.