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.
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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
Calling all Neil Young fans :lol:
Here is the BAJA 5E3 Deluxe 9v overdrive pedal for you :wink:
I designed the vero layout first using forum member bancika's excellent DIY PCB creator software, before building this pedal and it worked first time - lol.
Here is the schematic, vero layout and vero cutting guide (viewed from the track side :wink: ). I bought some vero clone board from a supplier on Aliexpress - a bit cheaper than the genuine vero and it works extremely well too!
enjoy :thumbsup...
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...
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
I am a member since 2017, regarding a lot of the interesting contents here all the time and now I decided to ask the community for the first time. I am 66 years old and living in Germany, playing guitar & bass and built a lot of little tube amps, cabs and some fx units.
So, my question is:
please have a look at this
I am looking for the circuit/schematic, on which this pcb is based on. I am not able to trace the circuit. So maybe there is a member who built and analysed it?...
Hi all!
This is my first time getting PCBs made (by JLCPCB) and I would also like to order the front plates for my pedals: actually, this is the main reason why I order these PCBs, as making boards at home for my projects is my favorite part of the pedal making process.
But making and applying the pedals artwork is always a real pain: PCBs as front plates seem to be the cheapest and easiest way to get a professional looking finish.
The problem is that I am having trouble figuring out how to...
I’m looking for something like mesa boogie does for their pedals. Maybe use one of the companies that does metal biz cards? The thought is having universal cases for all products and use different metal covers for each product. This way I can gain flexibility by not having dedicated cases with silkscreens. A lot depends on the cost of the plate + case vs case + silkscreen. Also, those that use these, do you use rivets or glue or just count on the switch and pot nuts to secure the plate?
Ive been away for a long time but wanting to get back into the pedal scene.
Recently I lost my job and had a legal battle to fight about how that went down.
Now I am looking to take a career break and focus on things that make me happy (or happier)
I have a few ideas floating in my mind, resurrecting my old gigahearts_fx name and doing some pedals that people might even want to buy. hey, we can dream. To that end, I need/want some help with a circuit idea. I think I know the...
I put the Super Hard On inside a small 55x55x21 mm box and, not having the C5k, but also for reasons of limited available space, I would like to use one of the two very small pot of a Danelectro Rocky Road, one linear of 80kA and the other log of 80 kB. Which of the two is better to use to convert it to approximately C5k, the linear one or the audio one ? I tried a 5k resistor in parallel to 80 k linear pot between pin 1 and pin 3 but the excursion is not gradual and the gain increases only at...
Thought you guys might be interested. Analog devices shows a 5V to +/-15V converter for the LT1930 on page 8 of their data sheet. I've been using it in pedals with a 9V input since 2014. It switches at 1.2 or 2.2 MHz depending on which part you use. Just be aware, if you sell commercially, it pushes you into the range where you need FCC approvals.
didn't bother drawing the switching layout but its not too hard to figure out. effect input is grounded through the 47 ohm and swaps a ground connection with the status LED on bypass.
Hi everyone!
I designed this fuzz circuit in this picture. I'm planning to build it, but first, do you have any suggestions about it? Do you notice any flaws? The npn transistors are 2n3904,the pnp is 2n3906 and the mosfet is a bs170. Any advice is much appreciated! Thanx in advance.
I’m not a huge fan of the RAT, but I really like the circuit design and have built a few clones for people over time. I decided, however, that I’d build one for myself, incorporating all the basic modifications I know and adding a Blend knob as well. The result turned out quite nicely, and since I’ve been mainly playing bass lately, the Dry Blend seems to work great.
It’s still not my tone, tho :lol:
Here's the schematic with some comments (it might not be 100% accurate because I did a lot of...
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...
I'd like to mix teh signals of 2 double bass piezos that each require a very high (10Mohm) input impedance. I just sucessfully built a single bufffer based on a TL071 opamp (see 1st opamp buffer on page ).
I can easily built 2 of these buffers (using a TL072 opamp which is basically a double TL071) and mix the signals in my Behringer mixer, but I woudl like to have just 1 little box where I can mix the 2 signals.
What woudl be the best approach to this? I found a simple schema for passive...
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...
Happy New Year to all the good folks here at freestompboxes.org.
Here is a new design that I have been working on over the last few years - a pedal designed to mimic the performance of a typical negative feedback tube amp power stage driving a Celestion quad box or similar.
The pedal has the negative feedback presence and depth (resonance) controls typical of Soldano, Marshall, Fender, Peavey etc.
Tube power amplifiers have a high output impedance compared to solid state class AB and digital...
INTRO
Hello everyone. The Blues Driver always pops up among the most popular overdrive pedals, no doubt because many people like how it sounds, but also because it's easy to find and relatively affordable, being from one the biggest pedal company in the world. It's not as popular in the DIY world, aside from mods, probably because it's not the smallest circuit and uses many transistors in a discrete op-amp configuration. Also since you can get it anywhere for cheap, I guess most people just...
Here is a bare bones mic preamp project I designed based on the application notes published by THAT Corp for their THAT 1512 mic preamp chip. This was done at the behest of someone on the GroupDIY forum who was looking for a THAT chip board layout suitable for home etching, but I'm posting it here first for folks to check out and get a first look.
This design includes an option to have a switch for -6dB Line Mode, which takes advantage of a unique feature of the THAT 1512. If the switch is...
Hello,
I have built a fuzzface clone, with some variation of my licking.
The pedal sounds good for what i want but it behaves not as i expected.
I just want to understand.
The circuit is exactly the same, i have just added a pre gain 100k pot, right before the input 2.2uf capacitor and a 10k trim pot on the second transitor collector, this is very common.
Transistors are bc108a for q1 and bc109c for q2, i have two 3pin sockets so i can easily swap them and try different combinations with other...
I've been on a quest to make a distortion pedal that suits the instruments I have and my playing style and so far I like this one the most. I'd been playing with non-inverting soft clip type of circuits (e.g. Tube Screamer) and didn't hate them, but when I tried stacking a boost in front I got an unexpected result - instead of more saturation I got more clean blended in with the signal. That might work for some people but it's not what I was going for.
Nothing fancy here just an antilog amplifier. Inspiration came from here and of course the classic Tube Sound Fuzz from Electronic Projects for Musicians. I think the oct control needs a better name. I want to call it splat because that's what it sounds like to me.
Schematic:
2fet2furious.png
Sound sample. Each phrase repeated 3 times, with oct control at min, then 50%, then full:
cmos_square_octave.mp3
I'm working on a quad pickup, which involves 4 single pole pickups for each string. Is there a way to improve the design by adding another magnet, side by side? I0,000 winds is almost at the limitation due to the size and material (3D print). I do have a working prototype using one magnet per string, with the added bonus of a buffer with a gain trimpot wired after. But I'm curious if adopting something from a humbucker design would help in anyway.
Here it is at long last - the Peavey EVH 5150 preamp section in a nice friendly 9v overdrive pedal format.
You can build it with or without the tone stack and recovery stage or make it switchable - the choice is all yours :wink:
This circuit is my attempt to mimic the frequency and phase response characteristics of the original Peavey EVH 5150 head preamp section.
I also paid close attention to the clipping behaviour which occurs asymmetrically in the 5th gain stage first and then in the 4th...
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