PROCO RAT REPLICA COMPLETE KIT
Includes all the parts and materials you need to build a ProCo™ Rat™ replica, including the PCB. One of the most famous distortion sounds ever. Click here for more general information about the kits.
YouTube Video Comparing OP07 and LM308 ICs
Click here for complete instructions for this kit.
Here are the specification data sheets for the enclosure options for this kit.