Welcome DIY People!

After much learning and trying DIY and BYOC guitar and bass stompboxes, I have really started enjoying to breadboard, experiment & build my own pedal circuits. DoitFuzz.com is a new forum board I have created for posting, sharing and discussing about DIY Distortion, Fuzz and Overdrive circuits and schematics (much more oriented in new diy circuits rather than byoc).

Here's why DoitFuzz was created for:

• I am using this forum myself to post circuits & schematics I created * (or will create over time).
• To bring DIY circuit creator people all together and give them a place to share and discuss.
• To give everyone a place to publish new DIY circuits **

At this time, after months of hard work, the DoitFuzz forum is somehow new on the internet. Me and friends are still working even hard to make a better DoitFuzz. We think that by grouping the most of new DIY circuits as possible at the same place and making the information more accessible, it will be much easier for the internet community.

Assuming you like to build your own pedals and now you went to step 2 -> design your circuits, here we are. Novice, intermediate expert, DIY website owner, commercial, you all welcome!

Do it Fuzz and have fun!

Enter DoitFuzz.com Forum Board DoitFuzz.com Forum Click here • Still not a member ? Register Now it's Free!

 Quick Jump to the Latest DIY Projects :

DIY Breadboard - for pedal experimenting.
A breadboard is very usefull for prototyping, because it does not require soldering, it is reusable. This makes it easy to use for creating temporary prototypes and experimenting with circuit design. Now, this little tool can be upgraded to be more suitable for guitar pedal prototyping... more

Drive Bastard - High Gain Overdrive pedal project.
The Drive Bastard is an High Gain Overdrive project based on the LM741 single OP Amp IC. I choose the inverting input since they are not as usual as the non-inverting circuits. This is a 3 knobs pedal (Drive - Tone - Level), drive control can be adjusted from... more

RollFuzz - One 2N5088 transistor simple fuzz pedal.
The RollFuzz is a One 2N5088 transistor simple fuzz project with only one pot control (Level) that let you adjust the final effect volume. Fuzz is controled by rolling back the volume knob on the guitar. An extra pad has been added on the layout to let you... more

MuffRat - Distortion pedal project.
The MuffRat Distortion is a simple distorted effect generated within 2 stages : - A slightly overdriven 2N3904 NPN transistor input buffer inspired from the Big Muff PI. - A highly distorted stage using one side of a dual TL072 OP amp IC. With no LED at first clipping stage it reminds the fat saturation... more


 Quick Jump to All References :

Big Muff Op Amp 1977
Back in 1977, the Big Muff then had other electronic components than conventional transistors, these were operational amplifiers, so called Op-Amp or simply IC (integrated circuits). These components gave a particular sound to the famous Fuzz / distortion pedals produced by Electro-Harmonix...Below are the schematic and vero layout of the early 1973 version, which doesn't have the tone switch. Note that the proposed version include a slightly modified power supply filter section, this doesn't affect the sound but only gives a quieter circuit... more

Big Muff Ram's Head Violet V2 - 1st version 1973
The Ram's head is a legendary model of Big muff. This is the second version released after the triangle in 1973...Technically, the big muff is not a fuzz but a distortion. However, unlike others, it has 2 successive stages of distortion, which generates the so saturated and compressed sound of the big muff, ultimately making the sound close to the sound of a fuzz...Below are the schematic and vero layout which can be used as reference or to built your own clone of this legendary pedal. more

NPN Silicon Fuzz Face
The Fuzz Face, first issued in 1966 by Arbiter Electronics Ltd, is probably the most famous fuzz used by many guitarists like Jimi Hendrix, David Gilmour, Jack White from The White Stripes, Dan Auerbach from The Black Keys and many more. It was only in 1993 that Dunlop Manufacturing took over the production, making a variety of Fuzz Faces to this day. Some germanium and others using silicon transistors for more stability... more

Most popular Op Amp IC chips for diy pedals
As I started to built diy guitar and bass pedals I was always wondering about which op amp IC chip was the most popular and used, here's a short but still useful guide... more

Unicord / Univox Super Fuzz - modifications
here I am with a great circuit, the legendary Univox Super Fuzz...the best solution is to wire a smaller-value capapacitor in parallel with the 0.1 uF (I end up using a .022 uf), both caps are then connected at one end to the junction of the 10k and 22k resistors. At the other end, each cap are connected to an outside lug of a B10K pot, then the wiper of the pot goes to ground. Rotating the pot in one direction or the other makes the series resistance for one cap higher and the other lower, this yields two different flavours of mid-scoop and variable midlift... more

Tube Screamer TS-808
Here is a proposed Tube Screamer TS-808 schematic drawn without the FET bypass section. I did my best to respect as close as possible the original parts... more

Rostex Turbo Metal - No sound at the output fet
Here's another really good sounding circuit, the (discontinued) Rostex Turbo Metal (1991)...Drain voltage is correct but no signal is passing through the FET. No worries...I can find the problem and realised that the gate wasn't properly biased, so I just added another 1M resistor from Drain to Gate on the FET and Banggg !! Everything works as it should... more


* You are allowed to download or save material from this website exclusively for private, non-commercial use and for the purpose of creating the projects.

** Circuits nor Schematics can be completed or not, as long as they are originals (no BYOC) and completely free to download.