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Hey guys, I vaguely remember taking a digital circuit class in college but nothing stuck with me apparently… I promised the kids that I would make them a little box with some pots and switches and LEDs that they can play with (my daughter has been calling it her Time Machine [not sure why my...

I can’t believe I have another build report! I started this over the weekend and finished it tonight. I now realize that I’m more motivated when I have everything I need to finish a pedal which, in this case, I did, thanks to Robert’s excellent faceplate. The build went very smoothly. It only...

What's that? A build report? From @giovanni of all people? What? It's been years, didn't he hang the soldering iron to the wall? Ahem. Yes, long time no build, long time listener, first time (in a long while) caller... I finally emerge from my dark cave with a build report. And it only took me...

I have been trying to find the NE555D for the tone generator on Digikey but they seem out of stock and they say it's out of production. They do suggest substitutes, such as NE555S-13 or NA555D or NA555DR but I have no idea if those will work (and I could probably do a bit more legwork looking at...

I just opened both sites (on my phone), entered TL022 (for the Cepheid and my DuoPhase build which ticks a bit with TL072) and only a handful of results showed up and there was no endless selection of filters to sift through to find one item out of hundreds of thousands! If the search has gotten...

Do we have a Tayda drill template for the tone generator? I thought this required a specially milled enclosure? I can’t find relevant threads so asking here. Thank you all!

Hey guys, a bit of a random question for your consideration. A coworker is selling a Slotva, ARP87 and a Julianna. I just tried them really quickly this morning and I was just listening to a couple demos before I get to work. TBH I wasn't super impressed with the sounds I got this morning, but I...

I came up with the idea of using the light spectrum of the sun as the main artwork for a Sandspur Fuzz (AM Sunface). I didn't know what I was doing and @Brett took my original idea and actually made it work and sent me a beautiful ready to go pdf, so I think I should share this with everybody...

Hey guys, I am building the Cepheid and I only have these gigantic 50V 220u caps or much smaller 10V ones. I think the 10V should be OK since it’s just power filtering? Or I could use a smaller value like 120u, of which I have some that are not as gigantic and rated at 63V. Any thoughts?

It looks like the “it rocks” reaction is no longer available? Is this because of the server migration? 🤘

I recently made a faceplate where I put dots at the beginning and end of each potentiometer rotation range, similar to what Boss does. I did a quick google search and concluded that the total angle covered by a potentiometer run is 270 degrees. However, this doesn’t seem to be the case with the...

This build gave me some trouble. First, when I drilled the enclosure, I used painters tape to protect it from aluminum shavings, like I always do. However, the paint took off a few of the UV printed details, mostly thin lines around the foot switches but also in a couple other places (started a...

I was so excited on Sunday to finish my Sonomatic build. I had just switches and jacks to solder so I did. Then in the evening I decided to test the pedal. It did not go well. The effect worked for the most part but the bypass with tail was not working or working intermittently and the effect...

I am in the process of building the Sonomatic and I don't have OPA2134s. I know I may be able to use TL072s, but I was wondering if it will make an audible difference? Has anybody tried it? Should I just YOLO it?

This has been a long time coming. Work has been very busy and life and death have gotten in the way so may building rate is down to a crawl. And making and laser-cutting graphics takes me a very long time. So I boxed up my Maleficent Mids months ago and really really like it, but didn't...

A while ago (back in August 2022, gulp!) I bought a busted Boss CH-1 which I was hoping I could fix up. The pedal was in much worse condition than I realized (lesson learned: ask for more pictures) so not a great deal and not worth fixing. However, it did contain two very valuable chips...

I got a Small Stone from a coworker for free. It’s completely dead: no sound and not even the LED turns on. I opened it up today and couldn’t find anything obviously wrong inside. The foot switch seems to work and then components and solder joints look good. However I noticed that there is DC...

I made myself a little Inkscape template with all possible knob combinations that I can use as a starting point for my artwork (for laser cutting). I copied the template bits from a couple standard PedalPCB pdf templates to make sure I would get the spacing and hole size right. Here's an image...

Hey guys, I want to get a few things for my music room to make it a bit more useful for rehearsals. I need some sort of PA to plug in a couple microphones, keyboard and maybe bass (besides using guitar amps), but I don’t want to get a large portable PA system as it feels maybe overkill. At the...

I built the SoB a while ago and didn’t notice at first but I was playing through it today and noticed some amount of white noise coming from it. It’s very noticeable and increases with the treble knob (or the filter cuts it off). Is this normal behavior for this circuit? If not, could it be...