Hello Freestompboxes peeps. Long time, no see!
Here's my problem:
I purchased one of the newer Proco Rat pedals a few years ago. Swapped out the opamp for the lm308. Replaced the 30 pf compensation cap with a mylar, and switched to a green LED (because it looks cooler. sue me). During all of this, I ended up damaging the 100 pf cap across the drive pot, so I drilled out the pcb and placed a much larger (physically) 100 pf cap in its place. Everything seemed to work fine for a while. Then, it started to stutter. I thought that maybe one of the solder joints had started to ground out against the chassis, or something similar. But that's not happening. While I was troubleshooting, I turned the drive down from full on to about halfway. As I was turning the drive knob down, the THUMP....THUMP.... started going faster thump thump thump thump. A little less drive and it started going thumpthumpthumpthumpthumpthump. Turned it down just a tad more and suddenly I had sound! This one has me shaking my head. My first thought is that somehow the opamp got screwed up. I have a socket, and I intend to check that first. Just wondering if anyone has any other ideas.
I have a problem with my Proco Rat.
Information
- Posts: 33
- Joined: 16 Nov 2008, 16:46
- Completed builds: ROG Big Daddy
ROG Grace
ROG Little Gem
ROG Tantalus Project
ROG 3 Legged Dog
DOD 250
MXR Dist +
Easy Face
Fuzz face
Orange Squeezer
Cheers,
Dave
Dave
Information
- Posts: 33
- Joined: 16 Nov 2008, 16:46
- Completed builds: ROG Big Daddy
ROG Grace
ROG Little Gem
ROG Tantalus Project
ROG 3 Legged Dog
DOD 250
MXR Dist +
Easy Face
Fuzz face
Orange Squeezer
Ok. I just noticed that I didn't post this in a debugging thread. Sorry bout that, folks. I don't see a way for me to move this post or to delete it and repost in the proper forum. Mods? A little assistance please?
Cheers,
Dave
Dave
