The Roland AD-50 Double Beat is originally a combined fuzz/wah. I drew up this layout for the fuzz section and it sounds amazing! I've been building alot of fuzzes and this one is top 5 for sure.

A forum member on the tagboardeffects forum "Neil McNasty" made a heavy modded version of the AD-50 fuzz that he call "the Huzzle and Cuzz Fuzz". It seems to be really cool! Check it out here.

Here's a video I found on youtube

Here's a layout for a modded version of the Craig Anderton Tube Sound Fuzz. A great distortion that has inspired many others such as the Red Llama from Way Huge (one of my favourites).  My brother gave me the classic book "electronic projects for musicians" by Craig Anderton and the schematic was there so I could not resist doing a layout for it.

At first I drew up a layout 1/1 with the original schematic with a "turbo" switch. It basically bypasses the fuzz pot and increases the gain (alot!). But the turbo mode cause oscillation so I decided to remove the switch and play around with the gain alittle and this is the modded version I ended up with. Craig Anderton later did a buffered version of this circuit, probably to tame the oscillation.

Here's an interesting fuzz if you like noise :)

I found that a B100K works better for Oscillation Frequency and A20K for Power Starve.

Here a demo-video I found on youtube

I was interested to hear how the first Big Muff sounded, so I drew up this layout from the schematic of the first hand wired versions that was made around 1968-1971. It doesn't have as much gain or volume as a modern Big Muff, but it sounds excellent, much more articulate. I found the schematic on Kit Rae's excellent Big Muff PI home page here.