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...
For a long time I've felt guilty that my pedal board didn't include a compressor. Finally, after about a year of breadboarding, I have produced a circuit that can take on a Dynacomp and win , boasting:
Up to five times more headroom than a Dynacomp
Less noise than a Dynacomp
Same available sustain as a Dynacomp
Fewer parts than a Dynacomp
Cheaper than a Dynacomp
Feedforward side chain
Possibility for all five controls
Fits in 1590B
Millennium bypass
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:
ge diodes for sure. put 'em in d3 -8. boom. def what i did on the original.
for the quad opamps, i went with tlc274cn
out of all the quads i had, these seemed to quack and sound the best.
intersil ca3080e's a must
there's new video uploading as i type this. it sounds pretty good. i haven't quite got it dialed in right yet but its pretty close. it even quacks without the fuzz in front of it.
so for mods, i went with a 500k trimmer for r5, which sets the gain of the first stage. turn til...
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...
Hi all,
I want to share with the community a project I have started developing at the begin of the pandemic to keep my head busy: an 8 loop programmable pedal switcher.
The project is clearly inspired by the BYOC Super8, but I have used an atmega328p as center piece (since I knew how to work with AVR uC already). I then decided to add some MIDI support to make it more flexible to different use cases.
When the project was completed, I made the decision to publish schematic, firmware, and other...
Some ppl on amazon keep griping about this pedals lack of proper wiring instruction, it is a beginner level tho and so for beginners a wiring traced diagram sometimes helps which is what i am sharing.
The branding is Landtone but amazon labels it as TTone for some reason, They also claim it is a professional analog circuit (¿) I put it all in the title hoping people googling it can find it using those key words. It comes from China & works well to my tone deaf ears.
Been working on this one for a while. Muff inspired. Pre and Post EQ controls, Parallel loop Mixer that functions as clean blend with nothing plugged in (switching jacks), parallel low-pass drive circuit for punchy deep bass frequencies, boost mode with pregain, fuzz, and master controls. Xmode switch gives frequency tripling aka crossover distortion and a mild gating effect.
For guitar, bass, synth or anything you want to make sound like a magical blubbery sea creature.
Here is the second installment of my bass amplifier series - the Ampeg SVT in 9v pedal friendly format.
Plug this pedal into any high wattage power amplifier and experience the Super Valve Technology sound without tubes :wink:
This design is based on the original Ampeg SVT but with the 5 frequency bands mid boost / cut rotary switch used in the later SLM MkII model.
I left the bass cut option in the ultra bass switch control out as well just as they did in the MkII :wink: However I modeled the...
Many kilobytes have been spilled attempting to recreate the legendary Harmonic Percolator, and there are some that enjoy going to great lengths to find just the right transistors to recapture its classic sound. I'm more the type that wants to just shove any old BJTs in there and then jank with the rest of the circuit until it goes BRRRRRR...
I started with the Escobedo Harmonic Jerkulator:
Harmonic_Jerkulator.gif
Tim already did the work of finding sane values for a 2n390x transistor...
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.
Three years of online college classes made me want to destroy the world...
During this time, I worked with my boss to make a distortion effect pedal,
although the cost is a bit high, but it sounds great, I put the circuit diagram here.
If you are interested, you might as well make one and try it.
Schematic_Tube_TS Drive-1.png
I used the AP1501-xx step-down switching power converter to save board size，
and the 555 as the...
Alright, I got it finally figured out... an SHO-style MOSFET boost with NO CRACKLE!!!
I came up with a new gain control for it that allows for the same range of gain adjustment without having to adjust the Source. Since the Source stays fixed, there is no crackling.
While thinking about how to solve this problem, I realized I could treat the basic gain stage as an inverting opamp. So, I set a fixed max gain and tried a variable resistance in series with the input and voila , works perfectly....
So I breadboarded an Escobedo Push-Me-Pull-You the other day, and while it gives a decent octave up the fuzz was kind of weak (at least, on my breadboarded version).
So I says to myself, let's drop that gain control. Nuthin' good happening under max anyway.
Then I says to myself, what happens if we replace that feedback resistor with a diode, say a white LED? Well, what happens is that first stage becomes a bazz fuss and you get that glorious BF sound pushing (and pulling?) the octave...
Hi there!
I am new here and I would like to share a noise gate circuit that I have been working on.
One or two years ago I was playing around with the MXR noise gate circuit and I did a lot of trial and error modifications to it.
Then I forgot about it, until a few weeks ago I rediscovered this project and finially finished it.
It is using only cheap and standard components (and not many of them) and it could easily be added to overdrive circuits or similar.
So many different orange amplifier schematics and so many different topologies - I settled on the 72 graphic mkII to base this pedal on.
Hope you like it - here is the schematic for now - vero layout to follow shortly :wink:
cheers
bajaman
Baja OTR120 Graphic MkII pedal 9v 160318.GIF
Keep the clarity of your attack before letting the distortion embrace you: the best of both worlds!
At least that was the original idea behind this effect, to keep the gain low for the short-lived, high-amplitude note attack of a plucked instrument, then ramp up the gain and the clipping for the decay when the level becomes steadier. This is quite the opposite of what happens with conventional fixed-gain distortion circuits, where the attack of the note is the most distorted part, having...
I have a long secret relationship with cab sims. I'm talking about analog cab sims, the ones that aren't anything more than a very specific equalizer. I know that digital and IR cab sims exist and are very popular, and can account for other characteristics of a guitar loudspeaker, but those are both outside my interests and my capabilities. I think a glorified filter can be very effective indeed for playing without a speaker and a microphone, quietly or not, and surely its hardware, being...
Build the original (not Ernie Ball) MusicMan preamps for Bass and Guitar.
These preamps used the programmable current LM4250 IC and consumed a very low 44uA current. I remember a Stingray owner complaining that his bass guitar was distorting - he did not even know it had a battery in it - he had been using it for at least 3 years :!: :lol:
First up the schematics - board layout and PCB design to follow soon :wink:
The hardest part to obtain will be the 1M reverse log pot ( you could always...
Kaputepalla's Little Voodoo Vibe project files (ZIPPED PDFs)
This ZIP file contains the following:
Corrected audio schematic
Corrected oscillator schematic
PCB transfer file
Parts layout file
Component values
I will draw up a BOM for this if this arouses interest, but please Alessandro, chime in and tell us about it. Any comments are very welcome...
Hot off the drawing board - vero layout to follow shortly :wink:
This is the amplifier that after the VOX AC30 changed the sound of British rock for ever - based on the circuit of the 1959 Fender Tweed Bassman it used the European EL34 entode output tubes because they were a lot easier and most probably a lot cheaper for Jim Marshall to purchase in post WWII Great Britain.
enjoy and have fun :D
bajaman
Baja Mars Hall 1959 Plexi amplifier overdrive 9v 090318.GIF
Here is the latest - the Baja 59 Tweed Bassman 9v pedal.
Enjoy :wink:
bajaman
Baja 59 Tweed Bassman amplifier overdrive 9v 090318.GIF Baja 59 Bassman layout 090318.png Baja 59 Bassman vero cuts 090318.png parts not on board.GIF
Sometimes things don't go as you planned. You try and try again but the issues persist. I've started working on this project 11 months ago, but it's finally in a state I'm happy enough with to share it.
Whether I want to record easily or practice without disturbing others, I'm fond of Guitar Rig. One amplifier model it features is the Hot Solo, a Soldano SLO (100). Since it's the foundation of my “no-frills metal” preset, I thought it would be fun to turn the preamplifier circuit into a...
I'd like to put a buffer in a bass, but as it turns out, it is not so simple, cause despite the common knowledge that bass pickups will generate signal of about 100mV... or maybe up to 750mV.... people who use stroboscopes keep mentioning
voltages way over 3 volts, peek to peek (and I think I understand that 750mV means 1.5 Volts peek to peek)...
and the other thing is that the j-FET buffers, which can still be made as some shops still sell j-FETs,
have a...
I’ve always liked phasers, in fact one of my first pedals I’ve ever built was a Phase 45 clone. Not only I liked how it sounded, another main reason for choosing it (other than the complexity) was that I only needed two matched JFETs instead of, for example, four for a four-stage phaser.
I’ve been sitting there, content with my box, for some years, until recently I’ve heard of the Project 447 phaser on an old ETI magazine. It wasn’t perfect by most accounts (the long string of 741 op-amps in...
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,...
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