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Actually on second thought, this can be pretty 9V-friendly by changing the first stage gain. It drops the overall gain of the pedal by a bit but honestly since it used to be the frontend of an amp, matching the total gain out of the effect is kind of irrelevant anyway -- you're already going to...

I dunno if @Reconciledheart is still around, but I'm going through and cleaning up my old crappy schematics and repositories one by one and ran into this one again. I did a little troubleshooting with simulations and as far as I can tell, it's supposed to clip into near-square-wave-territory...

Good to hear! Looking at the schematic, it looks like there's not a lot hooked up to the tone pot so not many places it can be. (C9 thru C11, R14 and R15). One "have you tried turning it on" observation is that the switch controls whether or not the tone pot is even used, if I'm reading the...

In terms of soldering, it looks like you might want to reflow a few of the resistors. When viewed from the top of the board, you should see a little bit of solder pulled through from the other side. R14 is a good example of what it should look like. R7 looks especially bad (hollow around the...

IIRC from building this, the area of the trimpot where the chorus choruses is really narrow. It really helps to have a looper pedal or some kind of continuous noise through it while you slowly trim it. The choruses (this one and the Caesar) are usually some of the trickiest builds. Aside from...

Great! Let me know how they work out. I don't have any wah pedal stuff of my own so don't have any good way to test. I'm happy to provide any bugfixes/improvements to the project if you find stuff that doesn't work properly. Goofing around in KiCad is more engaging than turning off my brain...

And here's a version with plain PTH for the offboard connections. (0.042" holes to match the Vector wirewrap posts). The gerbers for this version are here. ("Download raw file") The previous version w/ the 0.1" headers is here.

Love the lockstitch pr0n. Back in my ops monkey days, I worked in a datacenter where some old-guard telco folks had wired it, and all of the wiring was laced up with waxed cord like this, even the big one-inch-diameter DC power cables. ("Kansas City Stitch")

Thanks for the exact measurements. I've updated the board to the latest. My initial measurements were pretty close (probably close enough to install). I did shrink the board to just a hair over 2 inches - it was ~2.25 before which gave some more room for the wire harness connectors. Still...

I dropped the full KiCad project + Gerber .zip here (CERN-OSH-P licensed, no warrantee expressed or implied, etc): https://github.com/z2amiller/fx-WahWahWah I used Claude Code to help me with doing the photo measurements and stuff, and it helped make the README file very flowery. Happy to do...

Sounds good. I think I'm within +/-0.5mm for the NPTH mounts but would appreciate fully accurate measurements to be sure, and let me shrink some of the holes/keepouts. Also measure pin to pin X-Y on the inductor, too, if you get a chance - I can make a frankenfootprint that takes 2-pin...

Not too hard to replicate since the layout was already done. It was mostly just annoying finding the honkin' big footprints to bury the normal-sized footprints in. It's a little bit different because the modern transistor pinouts (2N5088 or BC549B or whatever) are different so I swapped a...

I could take a crack. It looks pretty straightforward. I'd want to have accurate measurements of everything though. Specifically, the PCB dimensions and more importantly, the offsets of the mounting/screwholes. (Though I can probably get some fairly good estimates from the post by @chordball)...

I'm not 100% sure what the 'best' is, but based on my experience: I think the only desoldering tool that really works are the fairly big/expensive ones that look like a gun and hook up to a vacuum source (either a built-in vacuum or a venturi system on an air compressor) like the Metcal 1351...

Do you have some spare pots? How sad would you be to lose that A100K? Truth be told, if you don't have good desoldering tools you're way better off using wire cutters to snip that pot off of the board, and then desolder each of the pins individually. That's way easier than trying to desolder...

I pointed my AI thingamajig at my database of JLC parts and had it analyze the parts and cross-reference the datasheets to pull out various attributes that weren't directly in the descriptions. Specifically, I had it look for the best 'audio grade' transistors (e.g. low noise) that were...

The 2M2 should at least be 'preferred' (C22938). There are a bunch of TVS diodes that are basic/preferred also (C2990493 for example), they're under "Circuit Protection" and not "Diodes" of course. There are also a bunch of zener diodes that are 'preferred' and skip the loader fees (e.g...

This is an interesting discussion! I had a couple of comments: - In terms of footprint, using castellated pads is pretty interesting, but it does take a lot of real estate. It might be interesting to try some different layouts - I was thinking of doing something like this with pin headers...

I can't read the schematics, they're too downscaled to make out any words. My guess is layout problems - IIUC, ethernet requires pretty careful layout (matching differential pairs, impedance matching). Do you have a datasheet for your ethernet controller? Did you follow the layout advice...

I haven't built one of these, but I doubt it. 800mA is a lot for a pedal. As mentioned above, audio probe tells you lots of things - go through the audio path of the schematic and find where the music goes to die. If that doesn't help narrow it down, it might be better to post a new thread, or...