Search results

I've noticed some circuits have Vref A and VREF B that bias each section of a dual op amp. Why? Both Vrefs are set with identical voltage dividers, so why are there two VREFs instead of just one? Thank you

I'm talking to a guy about building him an ODR1 and he mentioned he likes the Wampler Belle as well. I've never really gotten into Wampler pedals, so I'm not really sure about the difference, but there is a 4th knob and maybe more gain? I'm thinking I could take a Nobelman board and do some...

I did this today. I sell on reverb and like using PPCB boards for their quality, but I like to place things out differently and use big knobs, and also off board wiring sucks, so I wanted to come up with a way of building pedals that would allow me to spend less time adapting and more time...

I've made a few klons and never really liked them so I built this so that at least I could have one that would be on my board and not take up more room than the tube screamer I do like. In my head that logic makes sense. Running the TS into the klon actually sounds really good, with just enough...

What's your favorite non-audio jack related way to ground your enclosure? The Keystone spring or the cliff audio jack surround thing? Or soldering a wire to one of the serrated washers that comes with the blue footswitch? Any other options?

I built this board almost a year ago but it kept getting pushed to the back burner in favor of more exciting (drive) pedals. I'm making a big push to complete my backlog and this is part of that. I wasn't sure what to expect from this pedal as all the demos online are kinda funky and weird, but...

Here's my second time building one of these. Univibe is my favorite effect but my Photon Vibe is down at the moment (when will they be in stock so I can redo it? I have an enclosure painted and drilled waiting for it but something is wrong with my board and the LFO doesn't work) so this will...

This is an interesting little fuzz. Like a Fuzz Face, the Fuzz dial you pretty much have to dime the Fuzz control to get a good sound, but it's a bit smoother than a FF. It sounds like a more vintage (less refined) version of my Sour Grape fuzz. The tone control is a nice feature. The Fuzz dial...

I've been on an "amp in a box" kick lately and just finished up this Brownout Overdrive. The pedal art on the original is AC/DC themed with their font and the lightning bolt, but AC/DC was never known for using a variac, so I'm not sure why Subdecay chose that name. The "Brownout" name also...

Hi all, I'm getting no sound from my recently built Powersound. I audioprobed it and I have signal up until pin 2 of Q1, but nothing on pin 3, which makes me think the VCC is wacky. What voltage should I be getting at pins 2 and 8 of the 1044? I'm currently getting 4.5v at pin 2, 8.9v at pin 8...

Here's one from my most recent batch of pedals. A while ago found a guy on reddit who does custom knobs, and I asked him to make me a set of transparent orange 1" MXR knobs. When I painted this enclosure I realized they would be perfect for this color scheme. i went back and forth between...

I'm trying to do a thing with a pedal that has a spdt on/off/on switch. I'd like to use a dpdt instead and use the second set of contacts to illuminate two LED's depending on switch position. So pos 1, green LED on, pos 3, blue LED on. But here's the kicker - pos 2, both on. Is there a clever...

I did this for a fellow on reverb. He wanted his Eddy pedal to have better knobs, so we did this. He also wanted to make the vibe/chorus toggle switch into a footswitch. Here's where we start. Two of the pots didn't survive diassembly Controls are on one board, while most of the other stuff...

Here's my build of a Circulator. I built a Phasor 2 a while back and thought it would be fun to make this one, with LM13700's. These chips were hard to find at first - I could only find smd versions and I was pricing out adapter plates, and then I saw they are in stock at PPCB! Here's the gut...

I bought this board a while ago as it's small and I wanted to see what kind of enclosure I could fit it in. This is what I came up with. I've built a lot of 1590G's in the past but they are kinda disappointing because they require side jacks and that makes them end up with a bigger footprint...

I'm checking out the design for one of the relay bypasses available on the site, and IC2 on this one is a 9v power regulator used to establish VCC for the circuit. My question is what is the point of having the regulator if the voltage coming in from the power supply is also 9v?

Here's another one I've been working on I bought this and the Special Sacue almost a year ago. I completed the Sauce a few months ago but I wasn't feeling this one at the time so I put it off. Inspiration finally striked (strook?) and I ended up with this enclosure. When I was building it...

Here's my Levitation build. I've had this PCB for almost two years and it's finally boxed up! I made a Spirit Echo (or whatever its called) as one of my first pedals. This circuit is meant to be an evolution of that idea with more controls. I like that it has the short/long toggle switch, and...

Today I thought "wouldn't it be nice to just design a layout for my knobs and stuff on a computer program and send it to a CNC so I can change layouts around as I wish rather than wasting time on templates, or even worse, spending what seems like an hour drilling out each enclosure checking each...

This year I've been doing mainly outdoor projects - making a new workbench and storage setup in the garage, car projects, cutting up a drum kit. Today I needed to clean up out there so I could make room for phase 2 of the new storage setup, but I took one step outside and about faced right back...