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Welcome to the Blues Box wiki!
The purpose of this project is to design, develop and release a Blues guitar-oriented multi-effects unit. It will draw heavily upon the legacy of excellent guitar effects circuits that have been developed over the past seven (or so) decades. The Blues Box will identify a set of high-quality effects circuits for inclusion
The selected circuits will be collected and the schematics captured into KiCAD. They will be laid out, routed and a series of PCBs will be designed. Their Gerbers will be generated and made available through the bluesbox repository.
The project will design a custom chassis/enclosure for the unit. All pedals will be installed within the chassis. The design will be made available as a 3D CAD model. Space will be made available for kit designers to apply their individual logo on the enclosure.
A pair of documents will be written. The first is geared towards kit builders. It will explain how to properly assemble the Blues Box. It will include both assembly instructions and troubleshooting tips. All test points will be documented. It will include all schematics. When a PCB allows for different versions of a circuit to be created, the document will explain how to asemble each variant. A second document will be written that is geared towards guitarists (users) explaining how to use each of the individual effects and the unit as a whole.
Most of the circuits will be purely analog. A few mey include digital components (such as delay or reverb), but their controls will be analog. No DSP or microcontroller circuits are intended for use in the Blues Box.
All resultant work products will be released openly through this github site. The intent is that effect kit companies will provide kits that hobbyists can purchase and use to assemble their own Blues Box. Companies may also sell pre-built units for those that do not wish to (or are unable to) assemble their own.
I am Dave Richards and I am a blind Blues guitarist. I have spent many years refining my guitar rig. I have found a number of guitars and amps that I enjoy using. The problem that has existed throughout my exploration has been my inability to find a set of guitar effects that I can use effectively.
There are many excellent guitar effects units available today. Unfortunately, most of them are not accessible to the blind. Consider that multi-effects units these days almost universally use LCD displays and/or touchpads. These are visual aids and are, unfortunately,useless to blind users. None that I am aware of provide voice assistance, for example. This is unsurprising. Most musicians are not blind. For the few of us that do exist, modern multi-effects units are largely unusable.
The BOSS ME- line is a refreshing exception. Each of the control parameters are accessible via manual knobs and switches. No menu-diving is necessary. It is not a perfect solution, of course. It is a heavily effect laden product. There is a lot of multiplexing of effects on controls. As is common with BOSS multi-effect units, the ME- exposes its internal DSP architecture to the user. It takes time to learn, but can be done. What it lacks is the orthoginality of a sequence of analog effects, which is easier to understand and memorize.
There are some products available, like the Sonicake Twiggy or some of the Keeley workstations, that both provide some excellent Blues-oriented effects and are accessible to the blind. Unfortunately, they are not designed to be complete solutions. Instead, they are designed to sit side-by-side with other effects on a pedalboard. This is understandable, but limits their utility.
One might argue that the modern pedalboard would be the perfect solution for the blind. I have not found this to be true. Pedals come in different shapes and sizes. They may be laid out logically, but the distances between stomp switches are not equally-spaced. Nor are they always of the same height. Using velcro to adhere the effects to the board is also problematic. It is not difficult to disconnect them accidentally during movement. This is one advantage that many multi-effects units have over pedalboards. They are a single integrated unit. They will not come apart when moved. They are also regularly-spaced.
Thus, the Blues Box is an attempt to create a blind-accessible Blues guitar multi-effects unit. One that even I can use!
Every engineering project is an exercise in compromise. Trade-offs must be made in terms of circuit design, component selection, etc. We need a model for making these trade-offs.
Each decision can be viewed through the lens of the formula: return = vvalue / cost. Our goal is to maximize the return. Unfortunately, although cost may be objective, value is not. This does not make the formula unuseable, however. Consider a simple example of stomp switch selection. One can compare three candidate switches and rate them in ascending order of value (quality). One can then compare the costs of the various options and ask whether the quality of each switch justifies the increased cost. At some point one would conclude that the marginal value increase does not justify the marginal cost increase. It is at this point we would make our component selection.
A second selection criteria is the 80/20 rule. We recognize that a product will never satisfy 100% of potential customers. There are many reasons why this may be true. Perhaps the customer is a professional musician and wants complete control over the effects selected, the order of the signal chain, etc. In this case, the Blues Box may be too constraining. On the other end of the spectrum, there may be customers that cannot afford something as large as the Blues Box. They may be building their rig one pedal at a time (which is not a bad approach). In such cases (the 20%) these customers will not be satisfied with the Blues Box. The goal is to focus on the 80%, those that can be. . For example, I am blind. I will never be satisfied with a visual guitar tuner. Thus, In my case, the marginal return will always be 0. But if 80% of the potential customers want a guitar tuner, then the Blues Box should probably include one.
Applying these guidelines requires both good engineering judgement and intellectual honesty. The Blues Box can never be everything to everyone. There will always be compromise. The goal is to produce the highest value product at the lowest cost that satisfies 80% of potential customers' needs.
The first thing that needs to be determined is which, of the many available guitar effects, are both appropriate for, and sought after by Blues guitarists. There is a strong affinity amongst Blues guitarists towards vintage guitars, pickups, amps and effects. This is natural. Guitarists often attempt to emulate the tone of their heroes. This tendency is demonstrated by the effects they utilize.
In his article Must-have Guitar Pedals for Blues, Paul Kobylensky (Sweetwater), introduces some of the effects commonly used by Blues guitarists.
In his YouTube video, Blues Pedalboard Tips for Beginners, Chris Harvey shares his wisdom on the subject. He also includes some nice sound clips of the Ibanez Tube Screamer, Klon Centaur and Nobels ODR-1 overdrive pedals.
In a pair of articles, The best guitar pedals for the blues, and, 7 types of overdrive pedal for killer blues Tones, Aidan, the Happy Bluesman, dives deeply into the subject of Blues guitar effects and, more specifically, overdrive pedals. .
In his video, How To Get Any Blues Tone, Josh Scott (JHS Pedals) goes into the history of guitar Blues music and explains how several pedals can be used to create these classic tones.
Mason Maringella (Vertex Effects), recommends specific products for different effect types in his video, The Best Pedals You'll Ever Play.
The Wikipedia article, Effects Units, provides a broad introduction to guitar effects, in general, not specific to those used by Blues guitarists.
The following sections summarize the effect types recommended in the above articles/videos. These are the "candidate" effects for the Blues Box. Not every effect type may be included. Some effect types, (such as overdrive), may have more than a single instance. The decision as to which effect types, and how many instances of that type, will be included will solidify as the design develops.
The Wikipedia article, Treble booster introduces a number of popular treble boost pedals.
A Buffer is usually a unity-gain amplifier circuit that presents a high (~1Mω) input impedance and produces a low (~100ω) output impedance.
The Wikipedia article, Delay (Audio Effect), introduces the use of "delay" in guitar effects.
The Wikipedia article, Distortion (Music), explores the use of distortion effects in music. Wikipedia also attempts to enumerate these pedals in the article, List of distortion pedals.
Josh Scott (JHS Pedals) explores the history of distortion pedals in his video, History Of Guitar Distortion . He further investigates the different types of overdrive pedals in his video, Understand The Types Of Overdrive Pedals On The Market.
The Wikipedia article, Reverb Effect, discusses the use and types of the reverberation effect in music.
The Wikipedia article, Leslie Speaker, explores the origins of the rotary effect.
The Wikipedia article, Tremolo (electronic effect), discusses the use of the Tremolo effect in music.
The Wikipedia article, Uni-Vibe, introduces the uni-vibe effect.
In the video, What Is Univibe and How To Use It!, Josh Scott (JHS Pedals), explores his personal journey of discovering the uni-vibe effect. He enumerates many of his favorite uni-vibe pedals and provide sound clips for a number of them.
The Wikipedia article, Wah-wah pedal, introduces the Wah-Wah pedal.
A necessary aspect of the Blues Box design will be to determine the order of the effects in the "signal chain".
There are a number of YouTube videos that explore the question of how effects should be ordered on a pedal board. They include, How to Set up a Pedal Board (Easy Step-by-Step Guide), Guitar Effects Pedal Order Explained, How to order guitar pedals effects in signal chain, and Mason Maringella's (Vertex Effects), Effects Pedal Order Explained. He goes on to recommend The BEST Way To Stack Your Overdrive Pedals .
Based on the above recommendations,The Blues Box will order its effects as follows:
- Tuner
- Fuzz
- Wah-Wah
- Input Buffer
- Uni-Vibe
- Compressor
- Overdrive
- Boost
- EQ
- FX Loop
- Tremolo
- Rotary
- Chorus
- Delay
- Reverb
- Output Buffer
This is only an approximation. The "proper" order of overdrive and/or boost pedals, for example, is contraversial. Similarly, given how delays and reverbs are used in the Blues, guitarists may prefer to order either before the other. . The good news is that routing circuits can be used for re-ordering effects in the signal chain when a single order is contested. This flexibility does, however, come at a price, i.e., increase design complexity and cost.
- Aion FX
- Analog Is Not Dead
- B.Y.O.C. (Build Your Own Clone) Effects Kits
- CopperSound Pedals
- ElectroSmash - Electronics for Audio Circuits
- EffDub Audio
- EffectPedalKits
- Experimentalists Anonymous
- Fuzz Dog's Pedal Parts
- General Guitar Gadgets
- DIY GUITAR PEDALS / STOMPBOXES / PCB
- GuitarPCB
- Das Musikding
- PCB Guitar Mania
- PedalPCB.com
- runoffgroove.com
- StompBoxParts
- Analog Is Not Dead: Circuit Analysis : the Boss BD2
- Doctor Pedal - Pedal Effects Dissected
- ElectroSmash - Big Muff Pi Analysis
- ElectroSmash - Dallas Rangemaster Treble Booster Circuit Analysis
- ElectroSmash - Dunlop Crybaby GCB-95 Circuit Analysis.
- ElectroSmash - Fuzz Face Analysis
- ElectroSmash - Klon Centaur Analysis
- ElectroSmash - MXR Dyna Comp Analysis
- ElectroSmash - PT2399 Analysis
- ElectroSmash - Tube Screamer Circuit Analysis
- ElectroSmash - You Can Build the Perfect Germanium Fuzz
- wamplerpedals.com: How to design a basic overdrive pedal circuit
design/experimentalistsanonymous.com/OOP Japanese Electronics Book/alembic-boo-pcb.gifdesign/experimentalistsanonymous.com/OOP Japanese Electronics Book/alembic-fet-booster.gifdesign/generalguitargadgets.com/sbb
design/effectpedalkits.com/black-hawk-booster-kit-building-manual.pdf
design/aionfx.com/prismdesign/experimentalistsanonymous.com/Distortion Boost and Overdrive/BOSS FA1.png
design/generalguitargadgets.com/geb_may
- `design/byoc/mosfetboostinstructions.pdf
design/aionfx.com/radiandesign/effectpedalkits.com/rangemaster-treble-boosterdesign/generalguitargadgets.com/geb_rm
design/generalguitargadgets.com/rgr
design/generalguitargadgets.com/dual_bst
design/generalguitargadgets.com/cb1
design/guitar-electronics.eu/Screaming-Bird-ENG.pdf
design/aionfx.com/muramasa
design/generalguitargadgets.com/mampdesign/guitar-electronics.eu/MC401-ENG.pdfdesign/pedalpcb.com/meb
design/guitarpcb.com/2023-NostalgiTone-Singles-70s-Boost.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-Ascension-Boost.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-PreAmp-Boost.pdf
design/generalguitargadgets.com/geb_orange
design/generalguitargadgets.com/paddownbox
design/guitarpcb.com/BD_Stage-3-Mini.pdf
design/generalguitargadgets.com/geb_vox_tb
design/aionfx.com/malacandra- `design/guitar-electronics.eu/aC-BOOSTER-ENG.pdf
- `design/guitar-electronics.eu/RC-BOOSTER-ENG.pdf
design/aionfx.com/ephemerisdesign/guitar-electronics.eu/EP-BOOSTER-ENG.pdf
design/aionfx.com/xanthus
design/guitarpcb.com/BD_XX-Double-Shot.pdf
design/generalguitargadgets.com/buffer-bjt
design/generalguitargadgets.com/ic-bufferdesign/generalguitargadgets.com/dual-ic-buffer
design/generalguitargadgets.com/-buffer-jfetdesign/pedalpcb.com/buffer
- `design/effectpedalkits.com/opamp-buffer>
design/aionfx.com/azuredesign/byoc/analogchorusinstructions.pdfdesign/experimentalistsanonymous.com/Chorus/BOSS CE-2.pdfdesign/pedalpcb.com/cepheid
- `design/aionfx.com/blueshift
design/byoc/lilchorusinstructions.pdf
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design/aionfx.com/lithium -
design/guitar-electronics.eu/small-clone-chorus-ENG.pdf
design/guitarpcb.com/MM_Build_Instructions_New-2021.pdf
design/pedalpcb.com/caesar-chorus
design/experimentalistsanonymous.com/Compressors Gates and Limiters/Boss CS-3.gifdesign/experimentalistsanonymous.com/Compressors Gates and Limiters/Boss CS-3.jpg
design/byoc/opticompinstructions.pdf
design/aionfx.com/convex
design/byoc/mimosajrinstructions.pdfdesign/generalguitargadgets.com/osc
design/aionfx.com/quartz
design/generalguitargadgets.com/dod280adesign/guitarpcb.com/BD_Squishy-Octopus.pdf
design/aionfx.com/proxima
design/generalguitargadgets.com/ibpcp10
design/aionfx.com/aurora-deluxedesign/pcbguitarmania.com/keepressor
The Wikipedia article, MXR Dyna Comp, introduces the classic MXR Dyna Comp compressor pedal.
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design/byoc/lilcompinstructions.pdfdesign/experimentalistsanonymous.com/Circuit Bending and Modifications/MXR Dynacomp.pdf design/experimentalistsanonymous.com/Compressors Gates and Limiters/MXR Dynacomp.gifdesign/generalguitargadgets.com/dnr_dcdesign/guitar-electronics.eu/Dyna-Comp-ENG.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-Compressor.pdf
design/aionfx.com/oceanid
design/aionfx.com/auroradesign/byoc/classiccompressorinstructions.pdfdesign/generalguitargadgets.com/dnr_rossdesign/guitarpcb.com/BD_MoRC.pdf
design/experimentalistsanonymous.com/Delay Echo and Samplers/BOSS DD-2.png
design/aionfx.com/amethystdesign/byoc/analogdelayinstructions.pdfdesign/experimentalistsanonymous.com/Delay Echo and Samplers/BOSS DM-2.jpg
design/byoc/classicdelayinstructions.pdfdesign/byoc/classicdelayscheme.pdf
design/byoc/lilechoinstructions.pdf
design/guitarpcb.com/DLay-v3-2021.pdf
design/experimentalistsanonymous.com/Delay Echo and Samplers/Ibanez AD100.gifdesign/experimentalistsanonymous.com/Delay Echo and Samplers/Ibanez AD80.pdfdesign/experimentalistsanonymous.com/Delay Echo and Samplers/Ibanez AD9.pdfdesign/experimentalistsanonymous.com/Delay Echo and Samplers/Ibanez AD99.pdf
design/aionfx.com/elysium
design/aionfx.com/vectordesign/guitar-electronics.eu/Deep-Blue-Delay-ENG.pdfdesign/pedalpcb.com/seabeddelay
design/experimentalistsanonymous.com/Delay Echo and Samplers/MXR Analog Delay 1.pngdesign/experimentalistsanonymous.com/Delay Echo and Samplers/MXR Analog Delay 2.pngdesign/experimentalistsanonymous.com/Delay Echo and Samplers/MXR Analog Delay 3.png
design/generalguitargadgets.com/pt-80design/guitar-electronics.eu/delay-PT80-plus-ENG.pdf
design/generalguitargadgets.com/ggg_shecho.pdf
design/generalguitargadgets.com/eq6bg
design/experimentalistsanonymous.com/Tone Control and EQs/BOSS GE-7.pdfdesign/guitar-electronics.eu/GE-7-graphic-equalizer-ENG.pdf
design/experimentalistsanonymous.com/Tone Control and EQs/Ibanez Graphic EQ.gif
design/guitarpcb.com/4-Track-Fuzz-2022.pdf
design/guitar-electronics/69-FUZZ-ENG.pdf
design/gitarpcb.com/American-Fuzz-v5-2021.pdf
design/aionfx.com/cinder
design/aionfx.com/astra
design/generalguitargadgets.com/geo_great_cheddar_v6.pdf
design/aionfx.com/zelus
design/aionfx.com/argentdesign/experimentalistsanonymous.com/Fuzz and Fuzzy Noisemakers/BOSS FZ-2.jpg
design/byoc/lilfuzzinstructions.pdf
design/aionfx.com/zeta
design/generalguitargadgets.com/tb_m2p
design/generalguitargadgets.com/tb3
design/generalguitargadgets.com/tb_jumbo
design/generalguitargadgets.com/tb_supadesign/guitarpcb.com/CT-Supa-Fuzz-v4-2022.pdf
design/aionfx.com/nysiad
design/aionfx.com/halo-deluxe
design/aionfx.com/epsilondesign/aionfx.com/proteusdesign/aionfx.com/solarisdesign/generalguitargadgets.com/ff5
design/guitarpcb.com/DSOTM-v4-2021.pdf
The Wikipedia article, Fuzz Face, provides background material on the Fuzz Face.
The Fandom article, Fuzz Face, provides background material on the Fuzz Face.
design/guitar-electronics.eu/Fuzz-Face-ENG.pdf
Loick Jouaud, provides us with The history of the big muff over time.
Kit Rae goes into great technical detail in his four-part article, Big Muff Pi Versions and Schematics.
design/aionfx.com/corvusdesign/aionfx.com/halodesign/byoc/largebeavernycinstructions.pdfdesign/byoc/largebeaverrussianinstructions.pdfdesign/byoc/largebeavertriangleinstructions.pdfdesign/byoc/lilbeaverinstructions.pdfdesign/byoc/lilbeavernycinstructions.pdfdesign/byoc/lilbeaveropampinstructions.pdfdesign/byoc/lilbeaverramsinstructions.pdfdesign/byoc/lilbeaverrussianinstructions.pdfdesign/generalguitargadgets.com/bmpdesign/generalguitargadgets.com/opamp-bmpdesign/guitar-electronics.eu/Big-Muff-ENG.pdfdesign/guitarpcb.com/BD_BMP-OP-AMP-v2.pdf- `design/guitarpcb.com/BMP-OPAMP-v4-2021.pdf
design/guitarpcb.com/MUFFN-v4-2022.pdf
design/generalguitargadgets.com/muff
design/aionfx.com/atom
design/guitarpcb.com/Fat-Cat-Fuzz-BD.pdf
design/guitarpcb.com/Foxtrot-Fuzz-v1-2023.pdf
design/aionfx.com/vulcandesign/generalguitargadgets.com/ftm
design/generalguitargadgets.com/ggg_controfuzz.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-Fuzz.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-Gypsy-Fuzz.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-Harbinger-Fuzz.pdf
design/generalguitargadgets.com/hornet
design/aionfx.com/zircon
design/aionfx.com/hypercube
design/guitarpcb.com/IndFuzz_v6-2022.pdfdesign/guitarpcb.com/IndFuzz_v7.pdf
The JHS Muffuletta integrates six different variations of the Big Muff circuit into a single effects pedal. The Blues Box should utilize a similar approach to maximize the fuzz variations available to the Blues guitarist.
design/generalguitargadgets.com/jbt
design/generalguitargadgets.com/muff_lr
design/byoc/lilblackkeyinstructions.pdfdesign/generalguitargadgets.com/fz1s
design/aionfx.com/orpheusdesign/generalgadgets.com/secf_mrfr
design/guitarpcb.com/2023-NostalgiTone-Singles-Luna-Fuzz.pdf
design/guitarpcb.com/OKF-v2-2021-Build-Document.pdf
design/generalgadgets.com/rocket
design/generalgadgets.com/secf_sc
The Wikipedia article, Tone Bender, introduces the Tone Bender Fuzz pedal.
design/aionfx.com/deimos
design/aionfx.com/phobos
design/aionfx.com/torus
design/generalgadgets.com/toct
design/aionfx.com/riftdesign/generalgadgets.com/superfuzz
design/pedalpcb.com/gerkin
design/aionfx.com/flaredesign/guitar-electronics.eu/FUZZ-FACTORY-ENG.pdf
design/guitar-electronics.eu/Wolly-Mammoth-ENG.pdfdesign/pedalpcb.com/snuffy
design/aionfx.com/achillesdesign/pedalpcb.com/pauper
The Fandom article, King of Tone, /provides background material on the King of Tone.
design/aionfx.com/theseusdesign/byoc/royalflushinstructions.pdfdesign/guitar-electronics.eu/King-Of-Tone-ENG.pdfdesign/pedalpcb.com/paragon
For background material on the BOSS BD-2 Blues Driver, consult the Fandom article, BD-2 Blues Driver.
design/aionfx.com/sapphiredesign/byoc/blueoverdriveinstructions.pdfdesign/experimentalistsanonymous.com/Distortion Boost and Overdrive/BOSS BD-2.gifdesign/guitar-electronics.eu/Crunch-Box-ENG.pdfdesign/pedalpcb.com/cobaltdesign/musikding.de/bloozehound
Josh Scott (JHS Pedals) discusses how to modify the BOSS BD-2 Blues Driver in his video, How To Modify A BOSS Blues Drive BD-2 Overdrive Pedal.
There is a thread in the Pedal PCB forum: BD-2 Mods
There is a thread in the Gear Page forum: [Boss BD-2 vs. Keeley BD-2] which essentially argues that Robert Keeley's mods are preferred over the stock BD-2.
Chris Pearson, outlines his Keeley-inspired mods to the BD-2 circuit in DIY Boss BD-2 Blues Driver "Keeley Mod"
This github site documents how to add the Keeley mod to the Pedal PCB Cobalt kit: colganr/Boss-BD2-Keeley-Mod-Documents: Supporting Documentation for PedalPCB to Keeley BD-2 Mod
Monte Allums Guitar & Pedal Mods includes four different mod kits for the BBD-2.
design/guitar-electronics.eu/Fulldrive2mosfet-ENG.pdf
The Wikipedia article, Ibanez Tube Screamer, introduces the classic tube screamer pedal.
design/aionfx.com/stratospheredesign/byoc/classicoverdriveinstructions.pdfdesign/byoc/classicodschematic.pdfdesign/byoc/mododinstructions.pdfdesign/experimentalistsanonymous.com/Distortion Boost and Overdrive/Ibanez TS-808.jpgdesign/generalguitargadgets.com/its8design/guitar-electronics.eu/Tube-Screamer-ENG.pdfdesign/guitarpcb.com/Tube-Screaming-Preamp-2021.pdfdesign/guitarpcb.com/Tube-Screaming-Ultra-v4-2021-.pdfdesign/pedalpcb.com/lgsm
design/aionfx.com/velorum
design/aionfx.com/stratusdesign/experimentalistsanonymous.com/Distortion Boost and Overdrive/Ibanez TS9.gif
design/experimentalistsanonymous.com/Distortion Boost and Overdrive/Ibanez TS-10.gif
Josh Scott (JHS Pedals) explains the JHS Bonsai in his video, JHS Pedals Bonsai: Nine Classic Tube Screamers in One Box. He goes into detail about the evolution of the "tube screamer" circuit over time.
The JHS Bonsai integrates nine different "tube screamer"-like circuits into a single effects pedal. The Blues Box should use a similar approach to combine the collective knowledge of the three different Ibanez circuits and the well-established modifications to them.
design/aionfx.com/ube-screamer
The Wikipedia article, Klon Centaur, provides background on the much-sought-after Klon Centaur pedal.
The Interstellar Audio Machines article, The History of the Klon Centaur, provides useful background on the seemingly mythical Klon Centaur overdrive pedal.
design/aionfx.com/refractordesign/byoc/silverponyinstructions.pdfdesign/byoc/silverponyschematic.pdfdesign/byoc/silverpony2instructions.pdfdesign/generalguitargadgets.com/kcdesign/guitar-electronics.eu/klon-centaur-ENG.pdfdesign/guitarpcb.com/MKC-v4-2021-Build-Document.pdfdesign/pedalpcb.com/kliche
For an introduction to the history of the Marshall Bluesbreaker pedal, consult the Pedaltown article, The Story of the Marshall Blues Breaker Pedal.
Josh Scott (JHS Pedals) does a deep-dive on the Marshall Bluesbreaker pedal in his video, What Is A Blues Breaker Guitar Pedal?.
design/aionfx.com/ceruleandesign/byoc/bbodinstructions.pdfdesign/byoc/britishbluesschematic.pdfdesign/byoc/lilbreakerinstructions.pdfdesign/generalguitargadgets.com/mbbdesign/guitar-electronics.eu/BB-Preamp-ENG.pdfdesign/guitarpcb.com/Blues-Buster-v2-2022.pdfdesign/pedalpcb.com/bluebreaker
design/aionfx.com/andromedadesign/aionfx.com/andromeda-deluxedesign/experimentalistsanonymous.com/Distortion Boost and Overdrive/Nobels ODR-1 Plus.pdfdesign/experimentalistsanonymous.com/Distortion Boost and Overdrive/Nobels ODR-1.pdfdesign/pedalpcb.com/nobleman
design/guitar-electronics.eu/reverb-ENG.pdf
design/guitarpcb.com/ADD-VERB-v1.5-2021.pdf
design/experimentalistsanonymous.com/Reverb/BOSS RV-3.jpg
design/byoc/lilreverbinstructions1_0.pdf
design/generalguitargadgets.com/d-verb
design/pedalpcb.com/spiritbox
design/pedalpcb.com/sproing
design/generalguitargadgets.com/sc_verb
design/generalguitargadgets.com/weslie
design/guitarpcb.com/BD_Apollo-Tremolo.pdf
design/experimentalistsanonymous.com/Tremolos and Panners/Boss TR-2.pdf
design/byoc/brownfacetremoloinstructions.pdf
design/generalguitargadgets.com/catrem
design/byoc/treminstructions.pdfdesign/byoc/tremolitoinstructions.pdfdesign/generalguitargadgets.com/eatdesign/guitarpcb.com/EA-Tremolo-v4-2021.pdf
design/guitarpcb.com/2023-NostalgiTone-Singles-Tremolo.pdf
design/aionfx.com/lunadesign/guitarpcb.com/apollo-tremolo
design/pedalpcb.com/vibrobot
design/pedalpcb.com/tuner
design/pedalpcb.com/electrovibe
design/guitarpcb.com/2024-NostalgiTone-Singles-Vibe.pdf
The project page for this pedal is located here.
design/aionfx.com/tri-vibedesign/musikding.de/tri-vibe
design/aionfx.com/straylightdesign/generalguitargadgets.com/univox-univibedesign/guitar-electronics.eu/univibe-ENG.pdf- `design/guitarpcb.com/The-Vibe-v4-2021.pdf
design/byoc/wahinstructions.pdf
design/experimentalistsanonymous.com/Filters Wahs and VCFs/Dunlop Crybaby 95.gifdesign/experimentalistsanonymous.com/Filters Wahs and VCFs/Dunlop Crybaby.pdfdesign/experimentalistsanonymous.com/Filters Wahs and VCFs/Dunlop Original Crybaby.gif
design/generalguitargadgets.com/wah
design/guitarpcb.com/BD_MoWah-Advanced-Mod-Guide.pdfdesign/guitarpcb.com/BD_MoWah.pdf
design/experimentalistsanonymous.com/Filters Wahs and VCFs/Vox Wah V847.gifdesign/generalguitargadgets.com/vox-847
design/guitarpcb.com/Buffer-Board-v3-2021.pdfdesign/guitarpcb.com/BD_Silent-Tuning-Buffer.pdf
design/generalguitargadgets.com/sw_ab
design/generalguitargadgets.com/sw_aby
design/generalguitargadgets.com/sw_loop
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Many companies and individuals have contributed to the collective knowledge of guitar effects. It would vbe the height of arrogance and ingratitude to ignore their contrabutions, or fail to give them proper credit for their work. Whether they participated in the original designs, modified existing designs, experimented with new circuits, were involved in tracing circuit designs, or worked on new circuit layouts, all participated in the grand work of preserving guitar effects. Moreover, failing to give them proper credit or feigning authorship for someone else's work is plagiarism. It is both unethical and unacceptable.
The Blues Box project will properly document all known contributions of others' work.