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...
This is my take on a classic variable state filter with optocouplers!
I added a few cool features:
- A possibility to control it with an envelope follower, an expression pedal or a control voltage. (You can actually use the 3 together, but it's a bit weird how it reacts!)
- A mix button, which allows for cool blending, phaser-like sounds.
Using the CV in with a good LFO, you can use it as a LFO-wha, Tremolo or 2 stage phaser.
It has a few imperfections though:
- It does not go into self...
Hey everyone, I recently finished my Disappearing Act design. This is an all-analog spring reverb driver with optical compression/ducking. The spring reverb driver section isn't terribly novel, but combining it with a full-wave rectifier envelope follower and optical compression on the reverb signal makes it so that you can get the studio effect in a pedal. It is designed for an 800 Ohm tank, so there are tons of options for tank sizes and decay times available. I have found it to be a ton of...
Hi,
I've some trouble to getting this simple circuit works.
elZKR.png
First question. The non inverting Input is @1/2Vcc. Other schemes put it to 0V. What's the difference?
If I've correctly understood, this summing voltage config create a virtual ground point at the inverting input. This point should be equal in voltage to noninverting input voltage. Am I right?
Second. The buffer (gain 1 noninv. classic buffer scheme) is connected to output of the uppper schematic. Should I interpose a...
I am going to build a little splitter box to send two copies of the same mono signal chain to sample into the left, right or both channels of a stereo chain consisting of BOSS DD7-> zoom CDR-70 -> DITTO X2. I'm using a WOBO dual looper to route the signals
For the actual buffer, I was just going to use a single BJT or FET but hang two separate output caps and resistors from the emitter/source. However, a dual opamp doesn't take up that much more space and would require only a couple more...
Hi folks
Here is an updated version of my Baja SLO overdrive pedal - although the original design works very well, i wanted to get a bit closer to the individual gain stage's frequency and phase response characteristics and the only way I could see to do this, was to use four gain stages (not two as in the original BAJA SLO) matched to the actual four gain stage amplifier schematic :wink:
cheers
bajaman
Baja SLO MkII overdrive pedal 9v 030218.GIF
WhatsApp Image 2023-07-18 at 11.23.46.jpeg Hi, I'm a bit confused :scratch: with the thousands of D.I Box schematics out there on google. In the end I decided on one that I found on the E.S.P (Elliott Sound Products) page using a Triad TY-250p transformer.
Any suggestions on this particular circuit? or about how I have wired the transformer? It can improve?
Thank you. :wink:
it's a mod I did to the mini booster that was called the Fat Boostered on the GGG site. I called it the Fat Bastard (it was when Austin powers 2 came out that i did it), but GGG changed the name when they posted the schematic. Paul C
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This is one of favorites among the booster circuits!
Extremely versatile and sounds real good!
Layout; Correction by PaulC : C3 should be 33nF or 0.033uF; JFETs 2N5457...
I like to use relays on the builds which I box up, and I have been making use of a simple relay design by Chuck D. Bones at the PedalPCB forums:
relay-v1.1-schematic.png
I'd like to share the schematics, gerbers, etc here:
There is a through-hole version for self assembly. I've been using this for a while.
relay-v1.1-build.png
I also did a SMT version for assembly at JLCPCB. It's the same schematic but a smaller footprint:
relay-v2.0-build.png
I'm putting together a simple mixer, following Jack Orman's design...
I'll have 10K pots on the inputs... and it will be stereo...
and there'll be a C-Moy headphone amp in the end... (it already has a charge pump, producing 18V)
.....
As far as I can see, in mixer design they'll use an opamp to boost the input...
and there'll be other inputs as well without that... for the line level inputs, so to speak...
my little practice headphone amp will have 3 pots atop of it,
level in #1...
I decided to put an op-amp wrapper around the standard BMP clipper stages, and add my favourite tone control for real versatility. As drawn, it sounds really good, but has more top end than a normal BMP because there's no input loading effect. The capacitor in the feedback around the first op-amp stage could be increased in value (I have 47 nF there at the moment), to give a roll off similar to that which the original transistor input stage would cause, but other players like the brighter top...
I like to try to find effects where there aren't many DIY offerings and come up with something. Dimension chorus is like that. There's the DC-2 clones and the Dimension P and that's about it. I repaired a Boss CE-5 a little while ago, which introduced me to the ES56028S chip that Boss now uses in all their modern chorus pedals. I use two of these instead of BBD's and ditched the companders of the DC-2, while using it's basic LFO architecture. Features include:
I recently got a Tonex pedal and wanted to capture a couple of the tube amps I've made. After some digging, I found that you don't need the Tonex Capture. All you need is a decent audio interface, a mic (or two) and a reamp box. (There's a good video on YouTube by Pete Thorn showing this.)
I didn't have a reamp box so I decided to build one. It worked out much better than expected so I'm sharing my design in the hope that others will find it useful.
My take on using the TDA7052A chip as gain cell in a compressor pedal:
Project page link
Description:
the compressor is a feedback type one, uses the TDA7052a's two opposite phase low impedance outputs to drive a full wave rectifier and an output buffer. This is a simplified and optimized version with, IMHO, the most useful features available as knobs.
Controls:
Input Gain - adjust it according to the input signal amplitude to avoid the clipping. Lower settings for humbuckers, active...
This is my last one, I have some of these in store, which I will sure to share if you like.
I like to take circuits I find interesting and rework them according to my taste following some guidelines, which can be summed up as:
-reducing the number of components as much as possible. I think there's beauty and elegance in simple things, and if I can get away with it or have a good reason to, I like to use less components
-standard values. I like to stick to E6 values for the same reasons, and...
hi everyone!
this is my first post on this forum.
i wanted to share with you this layout that I had in the drawer for a long time and completed a few days ago. the scheme that I followed is the one taken from madbean current lover (except some changes) . it can mount both the mn3007 and the mn3207 by positioning the bridges under the pcb. I did not have time to make it happen ... but I will do it soon.
Here is the latest in the series - the Mesa Dual Rectifier high gain channel.
Not built yet but should work fine :wink:
have fun :thumbsup
cheers
bajaman
Baja MDR overdrive pedal 9v 060218.GIF
We just released an open source, DIY tape echo you can build.
It's built using 3D printing and a cheap walkman style cassette player. Everything needed is free online (goto our website or our github page to get the files). There's some detailed build instructions on our website.
Hi folks
Here is my take on the Bogner Uberschall preamp frequency characteristics - once again 9v friendly - just a gain and level control - put it in front of any clean Fender type amp and experience the midrange snarl of the Uberschall :D
I was a bit shocked when I noticed the need for a 22n high frequency capacitor at the first gain stage input and also the large 39n capacitor in the feedback loop of the third stage, however these values were necessary to match the individual tube gain...
So with the release of the Lizard Queen, I decided to take it as a challenge and design my own octave fuzz in the same vein as something from the 70s, with minimal parts and following EHX design standards of the time. I decided to also go with the Green theme and used the Green Ringer circuit as a base for the design with some tweaks. I rather like how it turned out, and it does light octave to pretty gainy fuzz octave and it has a boat load of output too to drive your amp. I also added a tweak...
although I am already have a clone of the BOR, I wanted to build one without boost and I had created the pcb with the following wiring
Initially it didn't work then I looked at my clone's pcb and realized I had to reverse lugs 1 and 3 of the tone pot and it started working but with poor distortion, then I replaced Q1 with a 2N7000 and it worked fine, too if with slightly lower volume than my clone, but then the next day I don't know why but it suddenly stopped working, no...
I'm pretty new to circuitry. I have built some kits and recently re-housed and modified a JHF1 Dunlop Fuzz Face. Works awesome. I'm a germanium transistor collector and have learned a bunch over the past year. I just bought a Newmarket Transistor amplifier circuit (pre-made) from the 60's. The Reverb ad said something about being a Deacy amp. It has a basic schematic diagram for the wiring but I've tried a bunch of different things an I can't get...
I want to build a Tim using Dirtbox layout at and see conflicting informations on the JRC 4558 vs 4559:
According to this page , the only difference would be the slew rate (1 for the 4558 and 2 for the 4559), so that a 4558 would be a poor substitute for a 4559 in this application, right? If so, what would be a proper alternative?
I've been playing with the schematics of the Randall RG80/100 series for some time now, and I noticed both green and red channels have very few differences. After some time spent with the layout, I managed to fit both in a single stompbox thanks to the use of a 4PDT footswitch for channel change.
Here's the layout and schematic :
The red components in the schematic are exclusive to the red channel, all other components are common to both channels.
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