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Honestly this looks like a pretty standard power section to me. You could save some space by going SMD, especially if you're doing sandwiched boards if you need more vertical space. SMD caps and chips are going to be half the height or less. In KiCad you can have 'design blocks' that you can...

There's been a lot of 'ink' spilled on this on various forums. The general advice that I've synthesized is that MLCC caps are fine if you use NP0/C0G dielectric caps in the audio path, but that the other MLCC caps can be microphonic at audio frequencies (e.g. they can become both a microphone...

re: the weird IC voltages, that looks like it is correct for this circuit. Ideally, the signal in to an op-amp sits right in between the positive and negative voltage rails. The op-amp can be fed with a bi-polar supply, that is, a voltage that is positive and negative relative to ground...

Yeah - the pedalpcb 'standard' has the pots and switches mounted on the 'back' or non-component side of the board - so the pots stick through the enclosure and anchor the board in place, and the components are all visible. (which is handy for trimpots, internal switches, etc). If you were to...

Is the bare wire of the + rail touching the left leg of the top middle pot? It looks like it's touching in that picture but it's hard to tell in three dimensions. The bare wires like that could certainly short when stuffed into an enclosure (which maybe is why it worked and then didn't?)...

I think the two tantalum capacitors are 1uf: It looks like it also has LEDs for clipping as well as what looks like a germanium diode bottom right. (1N34A maybe?) If you are brave about desoldering, getting the component values of everything that is hidden/sanded should be pretty...

It sounds like one of the legs of either R100 or R101 are not soldered, or the trace between R100 and R101 is broken. Probably whatever leg of R100 connects to R101, given that all of your VREF_Bs also seem to be floating and/or ground. You should be getting R100 = 8.8/4.4 and R101 = 4.4/0...

First thing I see is something really funky with VREF_B. That should be ~4.5V direct to pins 2 and 5 of IC1. I'd check anything around there, specifically - your divider resistors look correct but you might want to doublecheck. Also any component that takes VREF_B - e.g. the rate+depth pots...

From the looks of it, the lifted pad will be easy to deal with since it appears that it's connected to the component right beside it. You can probably just ugly bridge solder across when you solder in that component. Looks like a pretty simple layout!

Good news is, you _should_ be able to see this state of affairs in the UI. After you upload the BOM and CPL files, it shows you a rendering of the board. And someone at JLC does check it, even it you don't have the option checked, when they're setting it up they'll email you if they spot...

The bom looks like: Comment,Designator,Footprint,LCSC,Quantity 10K,"RV1,RV4",RTRIM3362P,C118956,2 Conn_01x03_Socket,"J1,J2",JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical,C131339,2 100pf,"C19,C21,C22,C23",C_0805_2012Metric,C1790,4 1n5819,D1,D_SOD-323,C191023,1 100R,R1,R_0603_1608Metric,C22775,1...

I've been adding some THT parts to all of my designs. Sometimes box film caps for larger values, and always JST connectors for the footswitch board. It adds a bit of cost (since there's a $3.50 THT setup cost even if you just add one component) but it's worth it to me for time savings. I...

Couple of things: - If you have it done with PCBA, to use their 'Economic' service, you'll need to create the panel with mousebites instead of V-cuts which also means that you need to panelize it yourself rather than using the built-in JLCPCB panelization feature (which uses V-cuts). You can do...

Yeah - TL072s are relatively cheap in quantity and they're in almost every pedal. And if they're not in the pedal, a lot of the time they can be subbed for whatever opamp anyway - dual opamps have a standard pinout so things that call for NE5532, RC4558, etc can generally at least function with...

I built a board using through-hole components and wanted to see what the JLCPCB assembly would look like for a purely through-hole board. For purely through-hole, there's no setup cost and no stencil fee. However, the cost-per-unit for assembly is a lot higher. For really small runs of boards...

It's possible that's an issue - are the other pin 8's also noisy? (There's a small resistor between which might help the noise though). IC4 is part of the LFO (low frequency oscillator) so it's not super unusual for stuff in there to make weird noises but it is odd for the VCC pin itself to be...

I haven't gotten this all breadboarded, but I just yolo'ed a through-hole PCB layout and will order a stack of 'em next time I order from JLCPCB, and see how it works. If it makes any reasonable noises I'll release the gerbers for people to try out.

Worst case you can probably just bend those pins out from the socket (cuz you used sockets right?) and bodge it to VREF somewhere. If you did SMD or soldered right to the board it'll be a little harder, but should be at least hackable without getting new PCBs made.

I think pin 3 and 5 of IC2 should be tied to VREF (Vb) and not 9V. (9V maybe a holdover from using a charge pump where it was halfway between 18v and gnd?)

Good thorough notes! I think there's something wrong at IC2/3. That pin is tied right to VREF_A and other things that are tied to VREF_A seem to be okay, but that one is ~zero volts - so either it's floating unconnected or it's near-shorted to ground. Check your socket there there there...