Penfold Fuzz Unit
Here's an interesting Fuzz by RA Penfold from the book Music Projects (1994)
Moosapotamus has a good article on why it's a bit different from the usual fuzz.
"The Mouthmeistor" by Tiny Dazzler Electronics, a cool fuzz/wah. Have a look at my completed build here.
Here's one insane fuzz/noise machine invented by Anchovie at the diystompboxes forum (original thread here). Have a look at my completed build here.
Punch Amp v.2
Here's a nice little 1w solid state amp that will fit inside a really small enclosure.
I always wanted more clean sound/volume out of my noisy cricket and this is it. :)
Have a look at my completed build here.
The Carlin Compressor (aka Compressor/Fuzz) is a swedish cult classic built by Nils Olov Carlin in the 70's.Read the background to the compressor by the creator here. Have a look at my completed build here.
Note: It's important to set the trimmer just right, there is a small sweet spot -
Set the pots to maximum sustain and minimum fuzz and adjust until it's not too noisy.
Turn it up if you want more agressive compression/fuzz (at the expense of noise)
I noticed after doing this layout the moody sounds offers this one as a DIY kit or seperate PCB.
Check out moodysounds.se
modified Bazz Fuss
I added a PCB layout to the bottom of the post
Here's an early layout I forgot to post. It's the "bazz fuss" by Runoffgroove, modified with a LED for clipping and a tone control (Mark Hammer's SWTC). Super easy build and it sounds great for bass, and guitar aswell.
Another Octave Down, very different from the Synthbox. Cleaner and bassier octave.
Modded by me for true bypass. Have a look at my completed build here.
This circuit is a bit below unity gain, but John Kallas did his own version of my layout with an added boost daughterboard. Check out his layout here.
Synthbox Octave Down
Here's a layout for a very nice DIY octave down by Liquids (forum member @ diystompboxes) based on Joe Davisson's Shocktave. It's a very cool "synthy" sounding octavde down that tracks fairly well.
Here's a layout for the original Shocktave (not verified!)
Here's an active DI box I built for my studio from a schematic by Elliot Sound products.
All the layouts are Verified unless noted.