Ahhh, one of my favorite distortion circuits of all time... the honorable Proco Rat distortion. It's a FANTASTIC circuit and priced very reasonably too. In this video, I dissect the circuit and discuss it in easy to understand laymen's terms.
Question of the day: do you have a Rat pedal? Do you use it more as an overdrive, distortion, or fuzz? (Since it can do all 3!)
Want to buy a rat? Sure you do! Get yourself one on amazon: http://amzn.to/2BptGgA
My "How to modify effects" book on Amazon: http://amzn.to/2n9J4d1