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I should also add... I have mixed feelings about I/O jacks being direct-soldered to a PCB anyway. It certainly makes for neat and tidy internals; and it's convenient for building. But the jacks are one of the highest physically-stressed parts of a pedal. So having them isolated from the PCB...

But it also removes flexibility... making it into an I/O board basically forces a specific layout. Do you want top-mount 125B, top- or side-mount 1590B, what about 1590A? Etc etc. The idea is to think of it as an IC for much of your "pedal boilerplate" needs, for use with custom effect PCBs...

That's a likely next-evolution of this circuit. Main reason I don't do it now is that I hand-drill my enclosures and I don't feel that my consistency/precision is good enough for an I/O board. Quoting myself from this thread:

Here's an updated schematic. I'd like to think I'm getting close to a prototype fabrication run. Changes from the previous schematic: Changed the buffer opamp from opa1652 opa2197; besides being cheaper, the opa2197 is rail-to-rail output and input, and also has some built-in RF protections...

I agree with what everyone else has said, and looks like I'm in good company as part of the "hate offboard wiring" crowd. Depending on how much wiring there is, that part of the build might take as much time as the rest of the build combined! On one of my most recent builds, the Old Fashioned...

I also posted this to DIYStompBoxes, but it's not getting much attention over there, so I thought I'd see if it piqued anyone's interest here. In my pedal builds, for bypass switching, I generally prefer a buffered electrical bypass scheme (similar to typical Boss pedals). I've been doing this...

SS-3 no. The compressor, almost: several years ago, I built Aion's Oceanid, which is a Cornish OC-1 Optical Compressor Clone, but it's been sitting in my "to debug" pile ever since. It's either super subtle or I made a similarly subtle mistake.

The actual effect circuit is the Cornish CC-1. I copied Aion’s Cepheus schematic. I did make a change, but I don’t think you can call it a mod. The original circuit uses a bootstrapped BJT as a buffer (I.e. the “Cornish buffer”), and a single opamp for the final (Baxandall) stage. That seemed...

I don't know. But one datapoint with real numbers: my last order was Feb 21, 2026. I had two different PCBs, 5 pieces each. $4.21 for one 5-lot, and $2.09 for the other (cheaper because of the auto-coupon). Shipping was $3.50, tax $0.62. Order total was $10.42.

With JLCPCB, five is the minimum quantity for a PCB. If you go with all the default options, and the cheapest shipping, it’s usually like $2 for the PCBs and $5ish for shipping. So under $10. That $2 for the PCB implies an automatically applied coupon. So if you add another batch of five PCBs...

I love seeing you get these successful builds, keep ‘em coming! That Weston Grey from SBP is one of my favorites.

As you know, I like overkill for the sake of overkill. But sadly, in this case, the thickness is almost entirely from the insulation. The pre-soldered wires with JST connectors were advertised as 22 gauge, but there's no way that's true. The actual conductor is pretty small, I'd say it's...

I had some requests for the Gerber files. So attached here is: Schematic Drilling template / potentiometer offsets (not the same as PedalPCB!) Annotated BOM Gerber files I submitted to JLCPCB Grim reaper enclosure art (with bass and treble labels fixed) Note: all files are either PDF or...

Yes, it's extra optimization where none is needed. But I like to say: anything worth building is worth overbuilding.

Here's my build of the Aion Procyon, based on the BJFe Honey Bee. Kevin has a great writeup on the Honey Bee circuit, based on his extensive research and tracing this circuit. The short version is, there are several variants of the circuit, loosely based on which brand was selling it (BJFe...

Finally joining the party! Full Build Report Here. Great circuit!

Here's my take on @Chuck D. Bones's Hybrid Fuzz Driver Deluxe. A long time ago, I built the Skreddy "Holy Trinity" using PedalPCB's Aldrin Fuzz PCB: The Lunar Module (Aldrin Fuzz stock), Hybrid Fuzz Driver, and Screwdriver. I've done a lot of builds using this core topology. One of my...

I use 2n7000 for this application because it's current-production, cheap, available from many sources, and is still readily available in a TO-92 through-hole package (2n7000), as well as a SOT-23 SMD package (2n7002). In my experience, it tends to be cheaper than BS170, though I would expect...

The build and pics are so clean they look like renders!

Referencing the first two schematics shown in post #1: the first is the original Diamond Peak, and the second is Chuck's first-pass modified version. Specifically, I'm curious about what I think is the bias network for Q1 (R3, R6, R7; and C2 in Chuck's version). My naive take is that Skreddy's...