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This circuit - the Ibanez MT-10 Mostortion - has had some hype on gear forums, after some Nashville super-player hype (similar to how the hype for the Nobels ODR-1 got its start). AionFX does a great writeup on this circuit on the Quantum MOSFET Distortion product page. Incidentally, I...

As I've mentioned in a few recent posts, I'm really taken with the modified Animal Diamond Peak drive designed by @Chuck D. Bones. I created a PCB for this circuit earlier this year, and called it the "Hard Rock Pinnacle Purebred Drive", see my build report. I recently revised the PCB. The...

I’m pretty sure that if PPCB does this retroactively, then @Robert will end up signing over the deed to his house to @MichaelW.

Regarding the Paragon - does @Robert or anyone happen to have handy the labels for the bottom I/O holes? E.g., typical PPCB boards are in-gnd-sw-out. But the Paragon is unique and not labeled, and also not in the docs. I’m using my own bypass board for my Paragon build.

Those isolated DC-DC converters look like they take 5v input. If you have a 5v power supply, couldn't the 5v LDO and rectifier circuit be bypassed? What would be a super nice companion to this is something like those USB battery packs meant to charge your phone or other devices. I.e...

I also like #3, but: where's the gut shot? :)

From where did you source your TL072s? There was a thread on this forum maybe a year or so ago where someone reported that they got bogus or at least out-of-spec TL072s from Tayda.

@Robert - was kinda curious about this guy (EHX Spruce Goose), is it still in on the workbench?

I just gave away the last of my boards for this design. For anyone else who wants one, attached are the Gerber files I sent to JLCPCB for fabrication. Note the forum doesn't let you post .zip files, so I added a .txt extension. Just strip away the .txt part of the filename after downloading...

I've been on a bit of a pedal building hiatus for the last four months or so. Prior the build in this report, looks like my last build was the Hard Rock Pinnacle. My building break was in part due to the Hard Rock Pinnacle really being nearly perfect for me. I've settled on using the Hard...

Great as always! Now I have a weekend project. :)

Did you get this working? I took a look at the schematic, and that A100K level pot is quite literally the last thing in the circuit. So assuming the rest of the build is working correctly, I think either the pot is wired wrong or you might have a bad pot. Just for the sake of testing: can you...

So if I understand correctly, it looks like the volume is essentially constant, regardless of how the other three knobs are set? With a very slight step-function bump in volume near the end of the volume pot’s sweep? Putting the volume issue aside - do the other pots seem to work? The volume...

Love love love love it! I just received one of these boards, I've also wanted to build one of these since @Guardians of the analog posted his awesome Distortion Supreme build report and demo. I usually don't play with that high of gain. But check this out: Guitar Pedals Visualized: Boss MD-2...

That looks great! It’s always satisfying to have a working pedal that you built yourself. But there’s something special about the very first build. So much learning, and the anxiety of “Is it going to work? What do I do if it doesn’t?” And then to have something that actually works - I don’t...

I’m only halfway through your clips, but so far I like it all! To me, it retains the core goodness of the Timmy, which is letting the guitar and amp shine through - but it takes versatility to the max. I feel like this could be all the dirt most people really need. That settles it, I’m going...

I’ve looked at this thing numerous times and still think it looks absolutely killer. The gator’s LED eyes are sweet. Fantastic work!

The short and practical answer is to follow Aion’s docs. Indeed, ceramic (mlcc), film, and mica caps aren’t polarized, and therefore you don’t have to worry about polarity. That said, I’ve read a bit about film caps potentially having a slight difference in noise performance depending on...

Absolute beauty, as always! Even though it’s only kinda-sorta, vaguely similar, your artwork made me think of Black Sabbath’s Never Say Die album cover.

That’s 100% badass! Great job, thanks for sharing!