vires

@vires I have stuck a 47pF cap into pins 1 and 2 of the IC4 socket and I confirm -- this pedal now works! I can adjust everything and it...

I’m happy to report MAJOR progress on this. Someone recommended adding a 20pf cap between pins 1&2 of ic4 (I only had the 27pf so I used...

Strange! I'm having a play around now probing different points in my pedal and I think we may have separate/different issues. From your...

Does this help? Probing pins 10-11 of IC7. First with GAIN2 at middle, then at 9:00. The audio is from the pedal output.

On turning down the gain 2 pot to around 9:00 or so: The white noise can indeed be made to disappear. I also notice at this level...

@rurEEE thanks for your input on this. I've brought this up on the groupdiy forum in hope that we can get more suggestions. Discussing...

@Lorok That's great to hear! And definitely sounds like we're onto something... I didn't notice the whine you've talked about at TP2 (or...

@rurEEE thank you so much for chiming in with your experience. Ok, going through the Calibration by ear procedure from madbean's build...

First post here, so hopefully I'm not adding confusion to this topic, but I recently built two of these pedals and have a similar issue...

Today I attempted to further troubleshoot: •Pulled R23 and wired it to IC 4 The idea was to bypass the pcb traces that crossed w many...

In the absence of another solution I’d like to start pulling up resistors to bypass parts of the audio path on the pcb via a wire. The...