Mood:
hungryNow Playing: Immortal - Damned In Black
Topic: Pro Co Rat
As regulars of the stompbox forums may already know, I recently traced out the schematic for my early 90's-era Pro Co Rat 2. I did this because I'm planning on modding it and I was dismayed to see that none of the schematics on the 'net matched what I had in front of me. The schematic can be found here:
http://www.aronnelson.com/gallery/d/17576-1/ProCo+Rat2.gif
Now, so people can see what I traced this schematic from, here are some gigantic up-close robot porn gutshots of the unit I traced. As far as I know, the schematic should match this exactly. A couple things to note; the IC socket is not original - I installed it years ago when I wanted to replace the opamp. The opamp in the pic is made by ST, the original was exactly the same except made by National - I still have it somewhere. I replaced the opamp because I didn't like the mushy sound it had and I thought maybe it was defective. It wasn't defective, the pedal sounded exactly the same when I put the ST one in. I now know that the mushy sound is part of the usual thing these Rats do. I plan to mod it to get rid of the mush and give it more sizzle.
Here's the stupid pics already!
