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
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:
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.
This is NOT a beginner's project.
This was traced from a recent B K Butler pedal and has the bias pot modification which alters the voltage on the cathodes of the 12AX7 tube.
You will need a suitable 12vAC power pack for this pedal - the original has a small toroidal mains transformer fitted internally near the front of the case.
The input and output sockets are isolated from the chassis by plastic insulating spacers. The earth pin on the input socket is connected by a parallel connected 100...
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...
I had wanted to make a compressor circuit for a long time, because it's a popular and somewhat easy to make effect, but the existing DIY offer left something to be desired. You should be ready to accept some compromise, in the form of: noisy and hard to find OTA chips; expensive and hard to find (in THT at least) VCA chips; hard to find (again in THT) and fiddly JFETs; circuits that underperform in some way or another, or; circuits that aren't well translated to instrument input and stompbox...
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.
You'll all know my hatred of the crappy TPDT and similar footswitches.
I still have customers who insist on true bypass and a solid copper path bypass . Buffered bypass is almost always better, but just to satisfy these (very wealthy / influential) musicians, I frequently use bistable relays. Many players are deeply distrustful of mains powered effects, and (perversely) demand batteries that last for many hours. I also have a large supply of really sturdy SPDT footswitches (like the old...
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 to all.
Fuzzface has undergone so many modifications, so only mine is missing :D
I set out to redo the fuzzface in a way that would be easy to repeat and not sound as sharp as the silicon transistors. Therefore, I decided to add zener diodes between the base and the collector and it softened the sound. Also, the capacitor at the input is also of reduced capacity so that there is no excess of low frequencies.
Here is the modification scheme:
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....
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...
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...
A long time ago in this very same galaxy, i did a pedal called the Glorious Basstar:
It's a very very very cool multiband bass overdrive, but it's 8 knobs is kind of a no go for a lot of people.
So I went back to the drawing board and made a 4 knobs version called the Small Basstar. It has less possibilities, but still plenty. And it sound as big as it's bigger sister.
You can find a longer description on my website:
It looks like that:
So there is a kit version, and here's everything...
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...
Hi folks
Merry Christmas to all :hug:
Here is a very simple but extremely nice sounding discrete bass guitar preamp for you all to build. Current draw is around 80uA :!:
I recently wound a Music Man style alnico bass pickup - (low inductance but series connected - 3500 turns of 41 awg polynylon per coil :wink: ) and i needed a preamp for it. Everyone seems to be going crazy for the Aguilar / Sadowsky two band bass preamps and i have seen a schematic for the Sadowsky on the web, but thought i...
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