Sanguine Distortion
- Thread starter Dice1012
- Start date
geekmacdaddy
Well-known member
Nice job. Question for you; the LED for engage/disengage has the square hole getting positive. Is it the same for the clipping LED's? I built 2 and I'm getting the oscillating squeal from hell. Thanks.
Robert
Reverse Engineer
See this post about LED polarity: https://forum.pedalpcb.com/threads/led-polarity.5/
This applies to all LEDs, whether they are indicator, clipping, or LFO components.
Chuck D. Bones
Circuit Wizard
Since the clipping LEDs are back-to-back, it doesn't matter if they are installed backwards, as long as they are both backwards. In any case, that would not cause oscillation. Look for bad solder joints. When I do troubleshooting, I always start with a close-up visual inspection. It's usually the quickest way to find the problem. If one or more of the bypass caps are not connected, that would cause oscillation. Check C2, C4, C7 & C8. Looks like you kept the input & output wires away from each other, that's good. If you short the input to ground, does that stop the oscillation? Does turning any of the knobs change the oscillation pitch? Good luck!
geekmacdaddy
Well-known member
I got it, thanks. Stupid me had the jacks wired in reverse.
