Electro Harmonix Frequency Analyzer

Here are two layouts for a classic Ring Modulator.
The first one is for a vintage version (schematic available here).
The DIP version of 1496 had a different pinout.
The second one is for the modern vesion and it could potentially fit in a 125B size box (there is no schematic but a PCB layout here).
Not sure if they have been verified.
You should be able to use Mark's Bipolar Voltage Converter.

Roland AG-5 Funny Cat

Here is a "heavily modified" layout for the old and weird Funny Cat.
The original pedal sounded a bit...
Me and Gavin (Hozy31) have been working on this to try to improve the sound.
We added Moosapotamus mods, a buffer at the "Normal" side input to avoid "tone sucking" problems and a boost (SHO) at the SDS/Normal switch output that works only when the Harmonic Mover is switched off, to avoid volume loss when using the fuzz on its own.
Gavin has tested the final result and he's very happy with it.
There are videos of the original AG-5 on YouTube but we prefer not to add any here cause this version sounds quite different (in a good way)
You can find more infos and sound clips of Moosapotamus modded version on his website here.

Moosapotamus Dirty Bird

Here is a layout for Moosapotamus Dirty Bird.
You can find all infos and sound clips on his website here.

Crowther Audio Prunes & Custard

Here is another great pedal we didn't have a layout for.
You can find original thread and schematic here.

Parasit Studio - The Xor'cist

A new Stutter Fuzz / Ring Modulator by Freppo from Parasit Studio.
You can find all info about this project and PCBs at http://www.parasitstudio.se/.
To make sure this project is built correctly (for momentary or latching Stutter footswitch)
you must follow his Build Document here.

Madbean Gravity Wave (Earthquaker Devices Sea Machine)

Madbean's great new project based on Earthquaker Devices Sea Machine.
Original infos available here.
17/07/2016 Layout updated!
Changed 33n cap to 3n3 and 10k resistor from PT2399's pin 14 back to 1K.

Little Angel Chorus - NYE Edition (AMZ modified)

Jack Orman's modifications to the Little Angel Chorus, which will hopefully help us get a bit more consistency with the builds.  Information about the mods and a schematic can be found on Jack's blog here:

http://www.muzique.com/news/little-angel-chorus-nye/

Currently unverified but based on the verified original layout so should be good to go.

Jen HF Modulator / Gretsch Playboy

Now get your irons out and build it. Place your favourite fuzz in front of it and get ready for some psychedelic brain melting action. The circuit is the same in both, Jen HF Modulator and Gretsch Playboy. For this layout, i've once again swapped the transistor pinout to match your everyday devices. Original has 2N5172 general amplifier transistors in it, but 2N5088, 2N3904 and many others are very close to those in their specs. If you want to use the original ones, just mind the pinout. I've also added series polarity protection diode and pulldown resistors for in and out to prevent your circuit from popping when switched on and off.

Here's a little dcemo clip of my build: