Lastgasp Art Laboratories GM2 Green Monster

 Schematic is avaiable at Deadend Fx.

Stephen Douglas Leona V1

 Ok, one more layout today. This one traced by Clément who was very generous to send me the schematic. 

Once again, thank you!

 

Arion MDS-1 Distortion

 The cheap plastic casings fools us but Arion did some really good sounding stompboxes in the 80s and 90s. Here is a quite simple distortion unit that is supposed to be a sleeper. Earlier versions had silicon diodes as hard clippers which was switched to red LEDs later on. So I included a diode switch.

Schematic is avaiable HERE.

 

Washburn A-D3 Stack in a Box

 A J-FET amp emulator hailing back from the early 80s, quite ahead of its time. Trimpots are included to be able to bias the FETs and the 5,6k inline with the trimpots is reduced to 2,2k to be able to use a wider range of J FETs.

Schematic is avaiable HERE.

Ibanez BN5 Black Noise

 An old request. This is pretty much a Rat with an active treble control and two fixed eq gyrators making it quite bass heavy. Lots of mods can be done like a diode switch, tweaking the gyrators and the tonestack as well as tweaking the RC filter at the first gainstage.

Solid Gold Fx Super Drive

 Schematic is avaiable HERE.

 

Seafoam Lowtide OD

 Schematic is avaiable HERE.

Menatone Blue Collar

 Per request. Schematic is avaiable HERE. 

Death by Audio Interstellar Overdriver Deluxe

 Thanks to Ross to reminding me about this one!

Here we a have a circuit for people that just love offboard wiring. ;-) Also be prepared to use sockets to try out different transistors since this is a "reverse beta" design which can be quite finnicky and be a source of frustration.

Scheematic is avaiable HERE.

 

 

And for those who prefer only the second channel and less offboard wiring... 

Box of Hall

 Another request by Ian.

The "Heaven within" mod is included as well as a feedback control for infinite reverb.

 *edit' 220421* Layout updated and verified. Thanks Ian!

 

...and a demo by Ian! 

 

Shoot the Moon Tremolo

 Requested and verified by Ian.

Thanks mate!

...and a short demo by Ian!

 

Electro Harmonix Deluxe Big Muff - EH3054C version

 The late  EH3054C version of the vintage Deluxe Big Muff. Some improvements had to be done like true bypass and common voltage refrence.

Schematic is avaiable HERE.

 

God City N.E.W. The Thing That Should Not Be Preamp

An op amp emulator of Mesa Boogie Mark II C+ which was used by Metallica for Master of Puppets. There is also a an eq board (which is huge!) so that one is for another post.

Schematic is avaiable HERE.

God City N.E.W. Buzzaround

 Nick Williams of Dunwich Amps take on the Buzzaround circuit. The most notable mods are the silicon transistors in the preamp section, a big muff tonestack with a recovery stage.

Schematic can be downloaded HERE.

Electro Harmonix Pulsar - Big box version

 Schematic is avaiable HERE.

Interfax HP-1 Harmonic Percolator - Early silicon version

 The earliest version of the infamous HP was actually a dual silicon transistor circuit. It also had a few addons and a few big cap fifferncies compared to the later Ge/Si version. Not sure how it sounds but I guess some of might be interested to to try this one out.

The 2N3565 transistors had a quite wide gain range between 100-600 hfe so socketing might be a wise idea. I would start out withs 2N3904 or 2N5088s, just mind the pinout.

Schematic is avaiable HERE.

Dunn Effects LXV Distortion

 Schematic is avaiable HERE.

Dwarfcraft Devices Hax

 

Polytone Multivoicer

Have anyone heard of this one? This is a a super rare distortion unit with clean blend and octave up. There is no sound demos online but the lucky few ones that have played one says it is quite a wild sounding circuit.

Schematic is a avaiable at Deadend Fx.

Roland AD-50 Double Beat MOJO layout