Distortion
EARTHQUAKER DEVICES v SUNN O))): Life
Given I’ve done a few Sunn Model T layouts recently, I thought the next obvious step would be an Earthquaker Devices Life pedal layout. This is from the PedalPCB Parentheses Fuzz schematic, which has an additional clipping mode on a rotary switch. I’m sure you can work out how to drop it back to a … Read more
WTF Dist 250
Pedro (WTFiCanBuildMyOwnPedals) came up with this distortion/overdrive a while ago. It takes elements from both DOD250 and Boss DS1 but it has its own thing going on. A bit less gain than a DS1 and cap values in the signal path is adjusted. The hard clipping diodes are a LED and a silicon diode for … Read more
SUNN: Model T Preamp
Last time I did a Sunn Model T layout it was a super blood moon (Coda Doom machine) – today is the winter solstice, so I thought why not stick with the theme and do another Sunn layout. This time it’s the Guitar PCB version, which is pretty similar to the Sunn Model T amp … Read more
MARSHALL: Shredmaster
The Marshall Shredmaster is a somewhat classic distortion, even if it has a cringe worthy name. I don’t think I would have even looked at this back in the day as a result of the name. Shredding is not my thing. I think it’s fair to say that Radiohead using the Shredmaster has certainly helped … Read more
Dunwich Amplification DA-120 Overdrive V1
Here is a layout of an early version of D-120 OD. It is basically a J FET conversion of a Matamp GT120 with some interesting tweaks like diodes connected to the sources for some of the transistors. It also have a clean blend /summing amp circuit. The original had fixed resistors across drain and V … Read more
VERTEX: T Drive
I found this one sitting in a folder from a while back, so I thought I would post it on the off-chance that anyone is interested. It’s very similar to an Ibanez SD-9. Vertex market the T Drive as a Trainwreck amp in a box – which is a massive stretch of the imagination. VERTEX … Read more
TC Electronic Dark Matter Distortion
Per request. A few things changed compared to the schematic; Bass ctrl outer lugs swapped, the two parallel 220uf power filter caps changed to a single 470uF (but you will get away with a 220uf or 100uf…), series protection diode added and bypass mute switching is omitted. SCHEMATIC.