Original effects with schematics, layouts and instructions, freely contributed by members or found in publications. Cannot be used for commercial purposes without the consent of the owners of the copyright.
Original Tracer Layouts A collection of original layouts for vintage guitar effects. If you want to build real replica's of vintage pedals, this is the forum you want to look at.
This page tries to keep the available projects indexed.
If you want to share files to build a effect that's not yet (widely) available, it would be a pleasure for us to host it here.
The projects should be verified , though, and at least contain a schematic , some layout file (transfer, vero, perf) and a component layout file .
Incomplete or unverified projects will be moved to the Projects in Progress folder: if you fall upon such a project, please report the...
It’s been a couple of years since I’ve made the first Pelota delay: from the very name, it was a circuit inspired by a few popular PT2399 delays, such as the Rebote series, the Deep Blue Delay, and many others that aren’t that different to be worth mentioning.
Even then, with my more limited experience and knowledge, I knew I could try to do better, starting from the awful, noisy, high resistance inverting input stage you find in the vast majority of them that makes you wonder who did it first...
Peavey, Pavey, Pevy, or is it Pee-vee? One of my favorite amplifiers is still to this day the Peavey Bandit 112 I was gifted for a birthday. That was my first actual guitar amplifier, but even after having the chance of playing and owning fancier, more expensive, more tube amplifiers, I still come back to this one once in a while. Having made a cab sim, I thought it would be nice to have a pocket size version of the pre-amplifier to use with it without bringing the whole amplifier with me....
Hello all,
just to let you know, if like me you use eagle for pcb design and download a lot of footprints from snapeda. I noticed , already 2 errors:
1 the 2N5172 transistor footprint is wrong: EBC instead of ECB (the probably copied a generic 2NXXXX footprint)
2 I tried a 3 colors LED footprint, but when I open it on eagle the pads overlap...
So double check everything before making a PCB...
Shub-niggurath - Lovecraftian deity called also black goat of the woods with thousand young
Second one in series, based on the EQD Hoof traced by Kit Rae at
It has FET blend circuit and Mpsa18 placed in Q1, Leds are Green for Q2 and Orange for Q3, also it has some slight changes in tone stack.
Whole project with gerbers: Shub-niggurath project on GitHub
PCB was tested and assembled and its working.
schematic and assembled pcb:
shubniggurath_schematic.png
shubniggurath_assembled.jpg
Hello, this is my first time posting and I'm not sure if this is the right place to do it. I tried to register with DIYstompboxes but the registration confirmation email never got through despite many attempts.
I am an amateur circuit enthusiast. I designed the attached harmonic tremolo circuit from scratch. What makes it different from other harmonic trems I have seen is that rather than always having the high and low pass filter gains oscillating 180 degrees out of phase from each other,...
I try to post here only the circuits I'm most proud of usually, the ones with lengthy explanations, lots of thought put into them and everything else. This leaves me with a host of other circuits, either because they don't depart that much from the original, or because they're too simple or just neat ideas, that keep piling up, known only to my friends on discord at most. I've decided to collect them in one thread so that I can share them without absolutely spamming this forum. Maybe there will...
I've been inspired to create more stuff in the vein of EHX, this is my take on the LPB-1 circuit. It has a bit of bass roll-off to be less muddy with humbuckers but still be beefy enough for a tele or strat. It's an amp driver first and foremost with just slight coloration. I added an extra switch to add some compression with some current feedback, and a gain control to give some extra boost/dirt. I chose BC107B as they are still readily available, but you can also use 2n5133 for more EHX mojo,...
Hello Everyone,
I have been lurking here many years, actually thought I had registered, but anyhow, here I am.
I'm building this version of the ROG Supreaux Deux. I see there is a Hi-Lo switch there, what is this for?, saturation or EQ?
thanks!
King in Yellow - distortion based on Exar Super Fuzz sf-2 schematic by @VitaliiBobrov -> SF-2 tracing
Original pedal was created by Polish company Exar Electronix (Janusz Raczyk and Leszek Gruszka)
It was my favourite pedal in the past for both guitar and bass and it was even better after some mods - like germaniums as clipping diodes, changing opamp..
and what i promised - here is whole project with gerber files: King In Yellow Project on GitHub
i built one and sounds pretty good but there is not enough gain.... i measured the resistance across the gain pot and it shows around 45K (some parallel resistance?), after that i disconnected the gain pot entirely and measured the resistance between IC pin1 and pin2 with the same reading....what could be wrong here.....
Thanks in advance
Hello, this is a circuit based on the Benson Preamp, called the Bonson praemp, because I'm refusing to call it a preamplifier. This is part of a streak of me going through circuits I see and even like, to conform them more to my standards while trying to keep the same timbre and character. A more thorough explanation is give at the beginning of the Clown thread .
Up for some circuit analysis? The Bonchild (name changes every time, it's a rule) consists of the same building block...
A simple boost/preamp circuit I put together recently. The JFET starts to clip in a pleasingly smooth manner if you really dig in so the gain control allows you to set how hard you need to play to make this happen. The simple active two band EQ gives a nice range of tones for not many parts.
Good morning or evening friends depending on how the case may be.
I have not been able to play for a while but I was digging up some of my old stuff while I was going through chemotherapy.
I've forgotten about this wonderful little practice amp that I built on a piece of purfboard.
I have a problem with my hands so please cut me some slack on the drawing.
It was the easiest way for me to do it and also hopefully it shows a little bit easier for people who are newer.
Before I get into the...
Here's my version of Bajaman's EVH overdrive , I call it the mini EVH. A friend brought his interesting circuit, which is directly inspired by the 5150 preamp, to my attention and I wanted to give it my own twist.
To Bajaman: know that in no way I'm saying that my version is better or there's anything wrong with its inspiration. They both sound great, I think of it as two different means to achieve more or less the same goal. I hope you're happy one of your circuits is getting “the treatment”...
hey guys,
any help would be appreciated...
i built a Diaz Texas Ranger Treble Booster. i used the exact part values and i got the proper bias voltage but it sounded to me more like a mid boost with a volume boost rather than a treble boost. and it barely distorts by itself...why is that and is it normal?
MOSFETs, the incredible devices at the core of modern devices, computers, power supplies and… distortion pedals? For some reason, there’s this constant fascination with them: regardless of them being used as diodes, amplifiers, inside op-amps or inverters or even in output stages, the presence of MOSFETs somewhere confers the circuit a powerful charm and the inevitable association with the seemingly unrivaled sound of vacuum tubes.
That said, very few circuits have attempted to use active...
Hi all, this project was one that I wanted to do for a while. It's been pretty fun digging into how oil can delays work and sound. Don't Tell Ray has a front end that can get gritty and dirty, a sinusoidal LFO, modulation speeds that match the hardware, and a tone control that allows the delays to stay nice and clean or dark and mellow. I have a full rundown of how the circuit works on my page about it here: Here is the demo:
Hi Folks
Merry Christmas to all :thumbsup
Here is a little something that i have been working on for some time - it is very low noise, extremely easy to customise and it does not use an inductor.
I built mine on a piece of stripboard - I may design a pcb for this in the new year. I used a OPA4134 quad opamp but a TL074 or two TL072 opamps should work fine - the choice is yours :wink:
I have suggested components that can be altered to zoom in on your favourite wah response. (I am currently...
Here is my version of the Hiwatt DR103 normal channel preamp and amplifier output stage - I have not built it as yet (waiting on some enclosures) but it should work ok :wink:
cheers
bajaman
Baja Hiwatt DR103 amplifier overdrive 9v 120318.GIF baja hiwatt dr103 vero layout.png baja hiwatt dr103 vero cuts.png Baja Hiwatt DR103 amplifier overdrive 9v parts not on vero 120318.GIF
The master volume can be omitted if desired - simply replace it with a 22k resistor and connect the treble control...
I wondered if I could swap the LED/LDR (or opto) for a FET, mosFET or 4049 gate (inspired by the PUP phaser series).
Here's the original:
I wanted to add a buffer, and that leaves me one opamp left on a quad, so I thought: What if I add dry non-inverted signal to the inverted filtered signal? The other frequencies should cancel out and the peaks should get peakier , right?
LTSpice kinda agrees:
( r being the resistance from point A and B to GND, where the opto is originally)
Recently I posted my take on bazz-fussifying the Escobedo Push-Me-Pull-You . I've been so pleased with this little octave fuzz I thought it was worth playing with even more.
The PMPY is divided into two sections: A simple gain stage, followed by the push-pull circuit that cancels out the fundamental to give the octave. So, I got thinking, what happens if we add a second stage of fundamental cancellation? Well, it sounds pretty interesting, that's what.
Hello everybody, I was searching a sort of schematic for the concert bass mod , or at least some info on which component to change/add to realize it, starting from the classic double SHO design...
Anybody knows something about it?
Thank you!!
Gianmarco
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum