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Hi all, here's a probably silly question, but what are the ground pads for on the PedalPCB boards? They're usually up by the plus and minus pads to connect the power. I've never connected them to anything, but now I'm curious.... here's a screengrab of what I'm talkin' about.

I'm not able to get my Taqueria pedal into the suggested biasing ranges for test points 2 and 3: Test Point 1 was easy to set up, the Test Point in "taco" mode is at 7.53V and "bolt" is at 9.37V. The lowest I can get Test Point 2 is about 11.14V, which is too high for both "taco" and "bolt"...

Hi all, and Happy 2026 to everyone! I've got a Taqueria assembled but not working as expected (yet). It's got some strange behaviors that I've not seen in my pedal building experience thus far. Signal through the pedal is suuuuper low: if I dime all the knobs I can barely hear something out...

Hi all, I'm throwing together a pedal based on the 424 and am wanting to use SMD components where they make sense. I've built a lot SMD synth projects and find that it's easier and cleaner to build SMD rather than thru-hole, plus they take up less space and generally cost a little less to...

Hi all, I've got a Thermionic Deluxe that needs some help. The current diagonis is that LED's light up and the clean bypass works but the output from the pedal when it's engaged is a floppy buzzing sound with no hint of the guitar signal. I was hoping to trace the input signal through the...

Hi all, I kludged together one of the PedalPCB Protoboards a couple weeks ago and figured I'd put it through its paces after building my first Muffin Fuzz pedal about the same time and finding that there are all sorts of versions of the build in the BOM. I opted to build a Green Russian for...

Hey all, I grabbed a pair of TRS microsplits (PCB584) for ... TRS stuff. These are supposed to connect a TRS jack to a pair of TS jacks, but the pinouts on the boards have 6 pins for all 3 jacks, and I'd sort of expect just 4 pins for the TS jacks? What do I need to get parts-wise if I'm...

Hi all, I've got a Tone Vendor MK1 ready for transistors and I'm wondering if what I've got on hand might work. The BOM calls for an OC75 and a pair of 2G381's. I looked these up and the OC75 seems to have a minimum HFE of 55 and the 2G381's have a minimum of 75. I've got a bunch of MP39A's...

Hi all, I'm working on a pickup simulator pedal based on this article. I've used KiCAD for a few years for little DIY projects and some fairly simple audio electronics projects, but this is my first time dealing with a footswitch and offboard wiring in general. I've successfully built many...

Hi all, I'm trying to get ahold of a 3PDT symbol for a stomp switch in KiCAD. I've added the Sparkfun-KiCAD-Libraries repo to my Symbol Libraries as I understand that there is one in that library, but I am not finding it in KiCAD after doing this. There is no 3PDT switch on the list. Can...

Hi all, I'm putting together a guitar pickup simulator based on this: https://www.muzique.com/lab/pickups.htm I'm not sure about the transformer and its connections. In KiCAD, I've selected a "Transformer_1P_1S" symbol and dropped it in as best I could, here's the schematic: Did I do it...

Hi all, I've got a Promethium that is outputting a very low signal when it's engaged. I've traced an input signal through the circuit and found that it seems to go 'poof' at the junction between R22 and Q3. I see a big meaty signal going into R22 but there is a constant ~7.9V voltage on the...

Hi all, I have a Twin Face happily sputtering away and am working on biasing it before I seal it up and take it from the workbench into the studio. I have 2N3904's in the Si side and some sweet P416B's on the Ge side, and they're successfully producing a nice fuzz effect now that I finally took...

Hi all, any idea where to secure an LM565 IC for a Cordyceps Ring Mod build? Or maybe a substitution if they're rare like hens' teeth? I'm USA based. Thank you!

I want to build a reverb pedal to put in front of distortion pedals for some quality shoegazing! Would anyone recommend a the pedalpcb board for this specific purpose? Thank you!

Hi all, this is not so much a build report as a dump-- have a look at these fine noiseboxes! I've not yet delved into printing on the pedal cases yet, but I kind of like the clean look! All boards are from pedalpcb, built within the past month or two. Left to right top to bottom: NuDrive -...

Hi all, I built a Seabed delay because I love PT2399's! It sounds lovely, everything is clearly within spec on the PT chip. BUT with max repeats I'm only getting 4-5 repeats before the sound fades out. Could I swap out some bits to be able to crank this into a self-repeating nightmare when...

Hi All, Does the Nudrive pedal assembly come together like this? And if so, this would prompt a hole to be cut in the pedal case to allow for room for the Nutube to stick out the top, right? Sort of like the Muffin Factory's DIP switches? Thank you!

Hi all, First stompbox build in about 25 years, though I've been building modular synths for the past 5 years so I have some soldering and audio electronics experience under my belt. I also develop audio projects on the Daisy Seed platform, and found myself here by way of the Terrarium PCB...