Category: Uncategorized
-
Univox Super Fuzz
This is a clone of the Univox Super Fuzz. I built a few of these here. This one uses a matched transistor pair: LM394CH. I thought this would enhance the octave effect since matched transistors enhance this effect. Seems like this circuit likes low gain transistors in the rectifier. The LM394CH is a high gain…
-
Fuzz Face NPN Ge
I have this bag of NPN Germanium transistors. These are rare and you don’t see them much in pedals. They offer a huge advantage over the typical PNP types found in Fuzz Face’s, you can use a regular power supply! PNP Fuzz Face must use a reverse power supply, the + and – are switched.…
-
Tremshifter v2
This is an updated PCB for Tremshifter. The original idea is Dead Astronaut effects. I built a few his PCBs, but didn’t like the layout and construction, so I designed my own PCB. My first version had some issues, this second version takes care of those problems. Schematic This is an update Schematic. BOM C1…
-
Guitar Pedal Workshop at Noisebridge Nov. 29
Did another workshop at Noisebridge Nov. 29. The next workshop will be Dec. 13. Join on Meetup. Just a few people showed up, it was a small but dedicated crew! Made some progress on existing projects. Started some new projects.
-
Fuzz Face Ge NPN
This is an NPN Germanium Fuzz Face. I designed the PCB in Eagle, and had the PCBs made at OSHPark.com. The original Fuzz Face used germanium PNP transistors. The germanium transistors is supposed to have some special mojo. PNP types are more common but require either a battery charge pump to create a reversed power…
-
Pedal Building Workshop at Noisebridge Nov. 15 2025
Had a good turnout for the workshop. Started a few people on some new projects. I was happy to see people interested in building the Vulcan. I didn’t take any pictures this time. I scheduled the next event for Nov. 29.
-
Super Fuzz v2
This is a second version of the Univox Super Fuzz. Check out the first version in these posts. The first version fit a 1590BB sized box. This time I thought I’d try and get it into a smaller 1590B box (this is my favorite size). This worked pretty well but jacks and footswitch are a…
-
OSHPark PCBs
OSHPark.com is PCB service in the US. I’ve used them a few times. Here is the results of my most recent order. OSHPark charges $5 per square inch. The size of your board matters! You get three board and free shipping. This service only allows for two layer boards, OSHPark can do more layers, you…
-
Glitchstorm PCB
I got Glitchstorm working on the breadboard (see this post); the next step is to make a PCB! I had some boards manufactured by PCBWay.com. I took these to the Maker Faire and gave them away to people who came by the Noisebridge booth. Here is my test build made with leftover parts. It looks…
-
Pedal Building at Noisebridge
Thanks to everyone who came to the pedal building event at Noisebridge on Nov. 1, 2025. Great to see new faces, and always great to see returning hackers! The energy was excellent — I attribute this to the enthusiasm of the participants, thanks! Sign up for the next event. A few people started new projects.…
-
PWM by Tim Escobedo
I wonder what happened to Tim Escobedo? The author of Circuit Snippets, a page with a lot of great ideas for guitar effects. The site is no longer active, but it has been archived in a few places; here is a link. If you haven’t explored Circuit Snippets, you should take a look. The ideas…
-
Guitar Pedal Workshop at Noisebridge
Had another great session building some guitar pedals at Noisebridge. If you think this interests you and you are in the Bay Area, you should join us! Join the Noisebridge Meetup channel. The pedal workshop is scheduled every other week on Saturday from 1 to 3 PM. The workshop has been running since Jan. 2023;…