Diy octave down pedal schematic Technically not for a pedal but i figured people here would know. My favorite analog octave down is the MXR Blue Box that I built about 4 months ago. The pedal features three different modes: Octave 1, Octave 2, and Direct. Related interests Octave Down Pedal Schematic Diy Octave Down Pedal How To Wire An Octave Down Pedal Boss Oc 2 Schematic Visit Save hobby-hour. Oct 12, 2023 · The schematic diagram of the DT-FOG pedal circuit is shown in the Figure 1. 58 votes, 17 comments. Here's the schematic for reference. Jan 11, 2014 · Here is a Demo of my Tube/Valve Octave Pedal. The walls are shaking. com • view topic Octave down schematic cmos workshop part cd4013 vero looking outputBoss octave oc2 schematic. Since we are all DIY'ers here to some degree or another I thought I would document my journey to build a fuzz pedal specifically for Bass. I've built a Green Ringer octave up circuit so I'm trying to find an octave down circuit of comparable complexity. How about an octave down? Also, I'd ideally like to have a full 9 drawbars, which would mean having non-octave harmonics (for example, octave + 5th) as well. An other alternative would be a pitch shifter. This is not a general purpose pedal that you would want to use for rhythm guitar, but one you would want to engage when you are going to shred a mean solo. If you're looking for that classic octave fuzz sound, this is the pedal. The real magic of this circuit isn’t the simplicity by itself, you will see the truly potential of this unit once you pair it with other pedals. It comes from a time before sound samples were common. This is for a project guitar with built in effects where the top strings are picked up by their own pickup octaved down and mixed in with the other pickup. Just pick one you like. reddit's community for DIY Pedal Builders! Jan 26, 2013 · Is there any pedal with an octave down function where I can grab the "octave down" module and add to my current schematic? I was thinking to use a 2p3t rotary switch to change between normal, octave down and octave up. The other is an octave lower. If you dial the octave's tone around 10', with bass boost activated and the fuzz, it gets quickly amazing. Diy octave down pedal (part 1) Octave down parasitstudio se pedal guitar here synthy sounding saved invented slacker cool very original category schematic commentsThe valve wizard Simple octave up: guitar effects pedals schematicsCob (clean octave blend) pedals, how are you using them?. Don't get me wrong 6 days ago · Octave circuit theory: A Octave pedal has a phase splitter stage to produce two identical but in phase opposition signals. Build your own DIY DIY Octave Pedals with an effects pedal kit or PCB from one of the many awesome suppliers available. It features an octave down, octave up, and dry mix controls. If you prefer getting a PCB etched, there's a few simple octave schematics on TonePad, there are 6 octave schematics there. May 12, 2008 · Well, just the PEDAL is simple. May 1, 2023 · In this guide, we cover everything you could ever want to know about DIY guitar pedals. The Boss OC-2 pedal has some circuitry that allows a proper octave down even with a waveform that would normally not work: Following the signal Nov 10, 2025 · It's a minimalistic octave down pedal with a glitchy and gated 8-bit sound. - Super Full Wave Octaver by JC Maillet Nov 6, 2015 · Vocal Octaver PedalThe biggest issue with the octave down function is that the waveform you are feeding it may have enough harmonic content that there are multiple peaks that when subjected to an octave down treatment return the fundamental frequency. We created several and we have redrawn some schematics that were already available on the internet for readability or ease of use (these needed an easier-to-read format, corrections or part identifiers). Stomp Box Schematics Schematics, circuits, PCBs and veroboards for guitar effects pedals. Nov 12, 2025 · Simple Octave Up schematic Started by SirPoonga, December 30, 2004, 01:36:29 PM Previous topic - Next topic Print Go Down Pages 1 2 The 8-BITAR by Parasit Studio is a compact octave down pedal that produces an 8-bit sound. Tracking is always a problem with these, and the lower the note, the less accurate the note is. The Valve Wizard But they only work as expected with single notes. Apr 25, 2017 · I'm looking for a schematic for a simple analog octave down pedal. It uses a CD4024 ripple counter to generate 1 or 2 octaves down that can be used on their own or mixed with a nasty comparator fuzz for a wide range of fuzzy synth like textures. With these two modes, the Octuplet Octave provides a versatile range Jan 3, 2018 · He modded an existing pedal, and my plan here is to get the original schematic onto a breadboard to play around with, hopefully tweak, with the aim of learning, and then doing a limited run of PCBs for a synthy octave effect with whatever mods I come up with. Sep 20, 2020 · An octave down pedal often is a flip-flop circuit that creates a pulse an octave lower than the input. 67K subscribers in the diypedals community. The pedal retains all the features of the 4 days ago · DIY analog octave down circuits are generally not clean. Dec 15, 2021 · In his schematic of this version, in fact, he has omitted the nulling mod altogether. The octave up is a Green Ringer circuit with additions I had been tinkering with on breadboard late last year. But because my goal here is really more towards semi-clean Octave Ringing, I haven't used it much while playing with it and there are better octave fuzzes if that's the goal. You might be able to send the octave change command using a MIDI Apr 15, 2023 · It has a very good fuzz that you can blend with the clean signal, or turn off, a tone pot shaping the octaves sounds. One of the largest sites for do-it-yourself guitar effects builders. I modified it to have a 1 and 2 octave down selection. Apr 16, 2024 · Simple octave schematics guitar effects pedals pedal diy circuit bass build fx amp choose board audio smalley gus forwardIlovefuzz. Schematics Here is a list of the schematics that are exclusive to this site. The pedal has a direct level control knob for exact tonal shaping and separate controls for octave 1 (OCT 1) and octave 2 (OCT 2). I built two versions already (1% metal resistors & polyester film caps). There will be a fuzzy distortion along with the octave down effect which is the nature of the beast. An octave stomp can open creative doors in myriad waysfrom adding Offering octave-up, octave-down, and a 5th up, this pedal boasts. Whats the simplest way to make a single octave down effect? No settings just on off one octave down. The circuit consists of a high-gain preamp stage, followed by a frequency-to-voltage convertor, which in turn drives an oscillator. Not only the schematic diagram and the module’s specification data, the user manual contains the bill of materials, PCB reference, wiring layout, and drill template to build the working pedal. Do you have a favorite? I agree with @Nostradoomus with the octave down. The oscillator is tuned so that it can only keep If you prefer building stripboard stuff, look here for a few stripboard designs of Octave pedals. I do turn it up in the demo below. The circuit is 100% original, with some added improvements. The schematic diagram is taken from the user manual of the DT-FOG module. The sound is not clean, but works well enough. 3 octaves down if needed, and a powerful bass boost toggle. This pedal sounds a bit harsh and whiny, but can be very effective when used well. I think the octave toggle mod (-1 and -2 octaves on a toggle) is very easy and worthwhile mod for that project. It features a toggle switch to select between the two modes. also if theres anything in the circuit that doesnt look right any tips/edits would be great Extensive repository of guitar pedal effect schematics, detailed guitar FX schematics and guitar effect schematics for DIY builders. You'd have to find someone with a Roctave and get them to make a sample. . Jan 31, 2025 · Here's how to build an original Roger Mayer Octavia on stripboard. Oct 18, 2007 · Anyways, basically what I'm wondering is how a clean octave up works (I understand how and why a rectifier works, except I'm looking for something that's relatively clean). The Boss OC-2 Octaver is a classic guitar effects pedal that adds a lower octave to your guitar sound. These do work with chords, but have a slight delay. Thats where I would start. The CS-2 generates a smooth and long sustain without degrading the quality of the original guitar sound. Dan Armstrong™ Green Ringer™ Replica This is the Dan Armstrong™ Green Ringer™ Replica project, an easy to build, great sounding pedal project. This pedal offers the option to toggle off the octave effect, allowing you to solely enjoy the intense and awesome fuzz tone. Introduction The Octa-plus is an analog octave up, the effect will become much more pronounced when using your neck pickup and playing above the 12th fret. I didn’t have an octave pedal at that point, so I started experimenting with using the TS as a front end for the octave creating full wave rectification circuits. Whether you want to build from scratch or you're looking for a prebuilt kit, this guide will help a lot. This creates a fat, sub-octave tone that can be used for a wide range of musical styles. The Tycho circuit coupled to the TS front end sounds great!!! Shocktave I was "shocked" that this worked as well as is did, hence the name. The DIY octave pedals out there typically make for a great deal of signal distortion apart from the octaving, don't track well on pitches below the 12th fret of the guitar, and are very affected by the pickup used and the position of the tone knob. It features a glitchy and gated square wave fuzz effect. Make sure you go for the 'verified' ones. First version was octaver only, but I know that analog octavers have tracking problems with lower notes so I decided to add compressor (CS-2 and Joyo mixed) before OC-2 in second version. This is an easy pedal to build, and definitely a fun weekend project Guitar pedal schematics for making an Octave up or Octave down effect. The pedal is housed in a smaller enclosure and can be powered with a standard 9VDC power supply. The controls for '+','-', and 'dry' could just be three pots on the passive mixer. This gives the smoothest sub-octave sound, but it is very difficult to build a switching circuit that works down to small signal levels, and reliably generating the control signal is also tricky. General Build Instructions Green Ringer™ Replica Build Instructions Green Ringer™ Replica Schematic diagram of the Boss CS-2 Compression Sustainer guitar effect pedal. I have an 80's Pearl Octave pedal, which does 1 and 2 octaves down, and one above. com [What's a Toner Transfer Package?] [What's an RTS Printed Circuit Board?] [What's in a board parts kit?] All commercial pedals that the author is aware of use the Boss method, which inverts on the peak of the audio. It's more precise with only one octave down, with 2 or 3 you start to have a much more Guitar effects pedals schematics Octave down pedalGuitar pedal x Roger mayerOctavia schematic circuit fuzz octave negative ground pedal ssguitar conversion central. It's a little bit better than the Boss octave pedal, (which only has octave down and above) but they are pretty similar. It's basically a Foxx Tone Machine with some value changes and a couple additions, namely a switch to shift the range of the tone control and the octave switch is a footswitch. In terms of octave up, I’ve made: Univox Superfuzz: Very cool circuit and probably my favorite octave fuzz (that I’ve played). The Direct Bright mode enhances the high frequencies, adding clarity and sparkle to your tone. It has a true bypass and the auxiliary output also has true bypass. There are no controls on this thing which makes it somewhat unique, and easier/less expensive to build. I started this on a breadboard with a BLEND control between a The Octuplet Octave is a pedal that offers octave up and direct bright tones. This could take some fiddling around, and it may not even be possible unless you have a professional instrument. Guitar gear equipment rigs and setups of your favorite guitarist!Octavia original gutshot Tycobrahe octavia octave fuzzOctavia guitar pedal board. May 20, 2007 · One of the largest sites for do-it-yourself guitar effects builders. Jan 26, 2013 · Is there any pedal with an octave down function where I can grab the "octave down" module and add to my current schematic? I was thinking to use a 2p3t rotary switch to change between normal, octave down and octave up. Schematics and Printed circuit board layouts for rare pedals like the Tycobrahe Octavia, Clyde McCoy wah and lots of vintage fuzz pedals! The Octavia is a classic vintage fuzz pedal with an added octave-up effect. Our projects are known for their detailed documentation, including schematics, drill templates, suggestions for modifications, and a parts spreadsheet for easy ordering. This is a great one. The Fuzz control turns it into a wild octave fuzz. 3 days ago · It will be only 1 octave down (Boss OC-2 clone). I tried the Foxx Tone Machine style and also the Tychobrahe style with the transformer. Schematics for making an Octave up or Octave down pedal for guitar. This is our favorite “octave” stompbox. Jun 8, 2009 · The Rocktave is a DIY pedal article published before the internet. reddit's community for DIY Pedal Builders! Sep 6, 2019 · Friday, September 6, 2019 Fulltone Ultimate Octave Happy Fuzz Friday everyone! Had a request for this one. The Octave Up mode adds an octave above the original signal, creating a rich and full sound. If you want clean you need to go digital which I believe may be beyond the scope for DIYer's. Summary created by AI from the original source. I have not created a schematic at this stage but it seems like it will work. Schematics and Printed circuit board layouts for rare pedals like the Tycobrahe Octavia, Clyde McCoy wah and lots of vintage fuzz pedals! Mar 8, 2022 · Hey All, I recently dipped my toe into the wonderful world of BASS and so far I'm loving it. The trick is to re-map your instrument so that the sustain pedal input causes a 1-octave shift. Before you dig in, ensure you download and read the General Build Guide. Mar 24, 2007 · Ladies and gentlemen allow me to present the Slacktave, an all new octave down pedal I've been working on for a while. It is based on the renowned Tycobrae Octavia, known for its distinctive sound. Coincidentally, when I recently re-googled some possible changes to the GR, the best answers (and where I must have previously got ideas) were also from Mark Hammer comments on DIYSB. Here's the schematic im just getting into pedals/pedal building and i wanna make an octave up pedal for my bass, ive found this schematic which suits my skill level with circuits etc, just wanted any advice on how to add a dry/wet fader pot to it so i can hear the dry signal and the octave at the same time. A normally open single-pole single-throw switch, connected to a 1/4" phono jack would do. Thanks! 4/15/99 - Added a trimpot on the schematic which essentially allows you to control the amount of "clean boost" when the drive is turned all the way down. This circuit produces an octave-down effect which tracks effectively across the fretboard. Learn to read schematics (I'm still getting that down) and look up the schematic to the boss pedal. The pedal is designed to fit inside a 1590A enclosure without requiring any additional parts. The diagram describes a circuit design to create 1 and 2 octave down effects. The goal of the design was to achieve the core octave tone from the Arcadiator pedal using as few components as possible. The Divided Octave is a pedal based on the Mutron Octave Divider. Looks good though. Jun 7, 2007 · Google search for some beginning info to circuitry, or get a book at your library. Feb 6, 2025 · Simple octave up: guitar effects pedals schematics Octave up pedal : 15 steps (with pictures)Octave down parasitstudio se pedal guitar here synthy sounding saved invented slacker cool very original category schematic comments Easy octave downOctuplet octave by pedalpcb. Jan 16, 2020 · An Octave Fuzz would be good. The phase splitter has one input and two outputs the two outputs are inverted with respect to each other. Related interests Diy Guitar Pedal Schematic Diagram Diagram Design Ideas Digital Board Electronic Schematics Electronics Basics Diy Guitar Delay Pedal Music Rhythm Stamped 925 Round Cut Wedding Jewelry Cheap Red Strapless Tops Sterling Silver Fine Jewelry With Prong Setting Red Sweet Crew Neck T Shirt Boss DD-2 Digital Delay Guitar Pedal Stomp Box Schematics Schematics, circuits, PCBs and veroboards for guitar effects pedals. The 8-BITAR utilizes a single , - Schematic diagram of the Boss OC-2 Octave (Dual Octave Down) guitar pedal. In Octave 1 mode, the pedal produces a single octave down effect. Boss OC-2 Octave pedal schematic diagram The Boss OC-2 Octave pedal produces additional tones, one and two octaves below the original note. An Octave Up guitar pedal is a fuzz-like pedal that raises your notes up an octave. This can then be low-passed to make less harmonics. Related interests Diy Guitar Pedal Schematic Diagram Diagram Design Ideas Digital Board Electronic Schematics Electronics Basics Diy Guitar Delay Pedal Music Rhythm Stamped 925 Round Cut Wedding Jewelry Cheap Red Strapless Tops Sterling Silver Fine Jewelry With Prong Setting Red Sweet Crew Neck T Shirt Boss DD-2 Digital Delay Guitar Pedal Jan 10, 2023 · Also just to get the credits near the top of this thread for people who haven't been following my descent into madness in my octave thread: - Octave Up Sick Box by Gus Smalley via GGG - Prescription Electronics Clean Octave Blend, schematic from FSB. If you can think of a great name for this circuit I will credit you with naming it!!So get to it in the comments Octave up and Octave down are two completely different circuits, so to achieve what I think you're after, you should build an octave up, octave down, and a clean boost in one box and mix them together using a simple 3-input passive mixer. This trimpot allows you to make your "clean boost" really clean or kinda dirty - you know? Sep 21, 2025 · Best DIY Octave pedal?Also, keep in mind that none of the DIY octave down solutions will work in a similar manner to the Boss.