Noise
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This is the DIY Eurorack version of this unit with black panel.Scrooge is a sequenced malfunction generator, available as a 42 HP Eurorack module or semi-modular desktop synth. While you can convince it to deliver boomy kick drum sounds, clicky hi-hats or metallic snares, it would much rather be making glitchy artifacts, hollow crackles and horribly distorted growls. It contains a sophisticated and performance-oriented step sequencer with parameter locking and the possibility to control all steps across multiple tracks at once. Its 5 distinct and fully analog voices are made up of special circuits that work without dedicated power supplies, scrounging power from the sequencer control signals instead, which gives them an organic and unstable quality. As a bonus, it means you won’t have to power the unit itself if you sequence it from external gear.Features:• 5 distinct analog voices• device can work passively without a power supply if sequenced from external gear• each voice can be routed to either of 2 main outputs (headphone compatible)• individual voice outputs• individual voice CV inputs that respond well to audio signals• 2 modulation tracks, individually routable to voices• 2 modulation CV inputs• onboard step sequencer * parameter locking per step * "control all" mode (change parameters for several steps and tracks at once), great for interactive playing * arbitrary step length per track (up to 64 steps) * generative algorithm builds random variations on patterns (available while performing), or creates random patterns from scratch * pattern chaining (up to 32 patterns) * stores up to 128 patterns in 16 banks * microtiming * CV slew limiter per track• can sequence external gear• sync output• sync and reset inputs• MIDI input (TRS type A)DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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This is the V3 Version of HatzHi-hats are typically rich in complex, inharmonic frequencies that create a metallic, shimmering sound. Hi-hats rely heavily on noise components to create the "sizzle" effect. While analog circuits can generate white or colored noise using transistors or diodes, it's difficult to get the noise characteristics just right for hi-hats. Designing a noise source that consistently produces the right quality and amount of noise can require fine-tuning and careful component selection. Hi-hats need very fast attack and controlled decay to emulate the sharpness of a real cymbal. Achieving precise control over these fast transients is challenging in analog circuits.Hatz v3 is an analog circuit that includes 2 types of noise: "Metals" generates stable, high-frequency square wave oscillations that are essential for the metallic, bright sound characteristic of hi-hats. "Texture generates a unique, digital form of noise that has a slightly "stepped" quality, adding a texture that's not as smooth as white noise, but has a desirable grain.Independent envelopes for precise transient shaping and a bandpass filter for frequency control contribute to a complex, high-quality hi-hat sound. This design approach provides flexibility, realism, and sonic richness that elevates the hi-hat beyond basic analog percussion.Features:• Analog hi-hat module combining 2 kinds of noise heart ❤ complex (LFSR) noise and (LOGIC) noise metals• 2 pole filter for each individual channel with CV• Vintage drum machine accent style• Choke switch• Linear and exponential fall selection in both channels• Open hat decay control with CV input• Decay control for the closed hat• Hold input for manual envelope opening via gates and CV• 2 LED indicators• Accent input with level/accent attenuatorDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Complex noise generator with 2 different outputs. Out 1 produces clean square waves with sub-harmonics and tone selection, remembering the nostalgic video consoles and taking it to strange metallic vibes. Out 2 is dedicated to the heavy chaotic metallic winds and explosions from other dimensions. Both shares the same signal modulation path, a dedicated output mix is placed to combine both textures to create a unique complex metallic percussions.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The Witch is a compact and versatile polyphonic synthesizer. The Witch can be used Standalone, with a MIDI Controller, Analog Sequencer, or MIDI Polyphonic Expression / MPE Controller. It's USB powered or with 9V DC.It comes with four different synth engines:• SubTract Virtual Analogue synthesizer with 48dB resonant filter• VoSim Voice Simulator formant synthesizer• WaveBank Morphing wavetable synthesizer• QuadSampler Sampler with peak filterEach synthesizer engine is provided in two variants:• Expression Mode Continuous pitch control and MPE support• Performance Mode Discrete pitch control, standalone chords and classic MIDI supportOther features include two assignable tap tempo LFOs with continuously variable shapes and a powerful effects section.As well as eight factory patches, the Witch is fully compatible with the OWL Library of more than 300 patches. What’s more, users can create their own patches using any of the supported DSP languages: Pure data, Max gen~, SOUL, Faust, Maximilian and C++.The Witch has its own Synth Editor web application: witch.rebeltech.orgDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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All knobs and no menus, an FM synth engine with hands-on controlALGO's four oscillators can be configured in series or parallel combinations, to create Complex FM or additive sound textures.A unique Algorithm Display indicates the signal flow from one oscillator to another - easy to understand FM with pretty twinkly lights!Each oscillator has controls for Level and Frequency, allowing easy adjustment of FM timbres, no menu diving snorkels needed.Modulation inputs for Frequency or Level for each oscillator - patch in a couple of Envelopes, and you have an instant FM synth voice.Bored of Sine waves? A generous Wave Warp control bends things through Triangle to Pulse wave and back again.Wave Warp can be applied to Carrier, Modulator or both types of oscillator.For the more discerning mangler, Wave Folding is also available in three delicious flavours; Symmetric, Asymmetric and Soft Clip!A Global Detune spread control with CV input is great for creating Netflix apocalypse drones that descend into the abyss.Lastly an onboard Stereo Chorus can add a vivacious 1980's shimmer to all your FM creations.Oh, nearly forgot. It's Stereo !Features:• Frequency range 8 Hz - 35 kHz• Sampling frequency 85 kHz @ 2 x oversampled (170 kHz)• Four through zero oscillators• Harmonic intervals, Fine tune, or Fixed frequency options for each oscillator• Amplitude OR Frequency/V/OCT CV inputs for each oscilator• 9 FM algorithm combinations• Wave Shaping and three types of Wave folding• Multi Stage vari-speed high quality chorus effect• Stereo output, with Pan control for each oscillator in the stereo field• Pretty lights !PLEASE NOTE THE KIT IS ONLY SUITABLE FOR EXPERIENCED BUILDERS.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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FM & Vector Synthesis - Two icons of the '80s in one unit!Introducing the new Vector Wave from RYK Modular bringing together the awesome power of 16 oscillator FM, combined with Vector synthesis OR true multi voice polyphony.The Vector Wave is a feature packed compact Eurorack module, which can be used as a stand alone synth-voice without the need for external VCA,ENV, LFOs etcWARNING! To build the kit you MUST have the following:• Accurate and stable 5.00V reference source to calibrate the module• Flux pen, or liquid flux• Two mini clamps• Clean high quality 2/3mm tip solder iron [chisel type recommended]Features:• 16 oscillators, divided into 4 banks, oscillators can freely configured into series or parallel combinations for complex FM or additive synthesis• A cute Vector Joystick for morphing between oscillator banks, for cool performance timbre sweeps and sonic movementVectors can be recorded from the joystick and replayed from trigger sources, or animated from external or internal modulation sources• Super cool retro Big-Pixel screen, ideal for nostalgia freaks or the visually impaired• Wave Warping brings grit and aggression to the FM synthesis with oscillators continuously variable between Sine,Tri-ish Saw, Pulse waveform• Wave Folding for subtle to extreme sonic bending• Two Envelope generators [per voice in polyphonic modes], and two LFOs with all controls assignable as modulation destinations• Intuitive Modulation Slot patching from external and internal sources to be routed to any parameter within the Vector Wave• 30 User Voice storage spaces for storing your synth masterpieces to internal memory, enabling you to impress your friends at a later date• Thee modes of oscillator bank allocation Monophonic Vector, and Polyphonic Voice, and Multitimbral Polyphonic• MIDI input for a spaghetti-free Polyphonic setup, velocity, aftertouch and MIDI CCs avail- able as modulation sources• Slim but handsome Expander Module also available that adds 3 more V/oct and Gate inputs, for maximum mutli-voice multitimbral melodious mayhem!PLEASE NOTE THE KIT IS ONLY SUITABLE FOR EXPERIENCED BUILDERS.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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V/Oct and Gate expander for RYK Vector Wave.The slim but handsome Vector Wave Expander module, adds 3 extra V/Oct and Gate inputs to the Vector Wave.Using Multi Timbral mode, these extra inputs can control 4 separate monophonic synth voices within the Vector Wave.This is a great way to add multi voice synth parts in a compact and unique Eurorack module!
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The Archer's Rig boasts a quiver full of digital noise generation algorithms, offering sharp and cutting sound sources for hi-hat and high-pitched percussion synthesis. As our archer has more than one string to its bow, he processes its source material through a versatile analog chain featuring filters, distortion, and a VCA. Randomizer, a memory of 96 presets, and compatibility with select bus protocol round out the Archer's capabilities, making it a powerful tool for creating a vast and personalized sonic palette.Features:• Hybrid analog/digital architecture hi-hat module• Wide range of sounds including classic and innovative hi-hats, shakers, bells…• Digital audio generator combining 13 source algorithms and 9 audio effects• Analog process chain including a VCF, a VCA, a distortion and a lo cut filter• Open and closed hat played exclusively• Random source with independant amount for each parameter• Dynamic phrasing through velocity input• Non volatile memory of 96 presets with CV and Select Bus recall• Djtechtools rubber injected knobs• Skiff friendlyDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Strakal Orsel is a tube distortion module that injects organic, vintage character into a modular setup. True to Touell Skouarn tradition, control labels use Breton terminology, while input and output are marked with arrows for clarity.The unit’s topology offers flexible tonal shaping: the Triodenn selector changes the left tube between pentode and triode operation, altering the core sound. The Boukl Retroaktiñ control combines a feedback engage switch with a level pot that ranges from subtle thickening to full, screaming self-oscillation. Gounid sets the balance between the first and second stages. Ampled governs the amount of saturation. A dedicated CV input, Enkas Modulañ, lets external control influence feedback and overall level even when feedback is not engaged.Beyond straightforward distortion, the circuitry produces rich secondary behaviors. With feedback pushed wide the circuit behaves as a powerful effect oscillator whose pitch responds to CV (not calibrated to strict 1 V/oct tracking). With feedback off and conservative level settings, the unit exposes its tube noise floor and can operate as a raw, characterful VCA.Features:• Tube distortion module• Exposes tube noise floor for characterful texture• Can function as a crude VCA• Compatible with 6j1P, 5654, 6AK5 and EF95 tubes• Boutique construction, made in Plougastel-DaoulasDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
The transistorkreis random is a quad true random voltage generator for modulation and for digital noise. There are two inputs to trigger new random voltages and each of the four outputs can be switched to• uniform or normal random distribution,• unipolar or bipolar voltage range,• an amplitude of 5 Vpp or 10 Vpp.Assembling the 3U DIY kit is straightforward since all SMD components are already soldered. Nevertheless, basic knowledge of soldering and electronics is mandatory. The generic design of the transistorkreis random supports any modular format and its firmware is open source. Respectively, you can customize it to suit your requirements. Including screws and washers for your module carrier and a Eurorack power cable with the Eurorack version, which is skiff-friendly.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The transistorkreis random is a quad true random voltage generator for modulation and for digital noise. There are two inputs to trigger new random voltages and each of the four outputs can be switched to• uniform or normal random distribution,• unipolar or bipolar voltage range,• an amplitude of 5 Vpp or 10 Vpp.The generic design of the transistorkreis random supports any modular format and its firmware is open source. Respectively, you can customize it to suit your requirements. Including screws and washers for your module carrier and a Eurorack power cable with the Eurorack version, which is skiff-friendly.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Drums are the heart! AD110 is a 6-voice analog drum module inspired by the vintage Japanese machines with the same number. The module produces 6 voices; kick drum, snare drum, hand clap, closed hi-hat, open hi-hat, and ride cymbal, all of which are contained in a very compact 16 HP Eurorack module!Knob colors might differ from pictures, currently not all parts are available from time to time.Kits packed according to revision AKFeatures• Faithful recreation of all 6 DR110 voices outputted in Eurorack signal format.• Additional tone adjustments beyond the standard DR110 settings: Kick pitch/resonance, Snare pitch/decay, Cymbal decay, and Clap spread/reverb.• Individual outs + mix out with accent input.• All through-hole parts (DIY Version) and no rare parts.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Analog random voltage and noise generator in 3HP. It features sample/track and hold normalled to white noise with a toggle switch for selecting sample(switch right position) or track(switch left position) and hold function. There is also a PCB trimmer(at the top of the motherboard) to adjust the spread(gain) of random voltages out from “scalar” (low gain, counter clock wise) to large interval jumping(high gain, clock wise). All analog white, pink, and brown(red) noise 10vpp~(dependent on lower PCB trim). Smooth(infra red) random cv out at 10vpp with 2 range settings from wiggly with (more events, switch in left position) to almost random rise and fall envelope behavior (less events, switch in right position). White noise pcb trimmer sets the amplitude of the noise which in turn influences the rate of the infra out. LED solder mask windows indicate positive(red) and negative(blue) voltage crossings.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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This is the panel PCB version of this kit.Analog random voltage and noise generator in 3HP. It features sample/track and hold normalled to white noise with a toggle switch for selecting sample (switch right position) or track (switch left position) and hold function. There is also a PCB trimmer(at the top of the motherboard) to adjust the spread(gain) of random voltages out from “scalar” (low gain, counter clock wise) to large interval jumping (high gain, clock wise). All analog white, pink, and brown (red) noise 10vpp~ (dependent on lower PCB trim). Smooth (infra red) random cv out at 10vpp with 2 range settings from wiggly with (more events, switch in left position) to almost random rise and fall envelope behavior (less events, switch in right position). White noise pcb trimmer sets the amplitude of the noise which in turn influences the rate of the infra out. LED solder mask windows indicate positive(red) and negative(blue) voltage crossings.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
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Analog random voltage and noise generator that expands upon the features of the Entropy Euroack Module in 3HPThe Entropy+Expander packs together some of the most random voltage options in 6hp. It provides a controllable “Glide”(slew) out for the S/T\H, a comparator with a controllable rate(“Thrsh”) of random gates(“Rand Gate”) out with an input to compare other waveforms(Comp In, inserting a cable into here breaks the white noise normalization), and high pass filtered white noise resulting in approximate “Blue noise”(+3db/octave) and “Violet noise”(+6db/octave) outs.The unique part of the circuit is a voltage controlled A/B switch thats normalled to the “Rand Gate” out that’s switching between the S/T\H out(left Blue led window)and Infra out(right Red led window), the Glide control also effects the S/T\H coming out of the switch so you can get really random results from the “Entropy Out.” Inserting a cable into “Switch CV In” breaks the random gate normalization and lets you toggle between A/B(left S/T\H out and right Infra out, indicated by the led windows) with your own gate or trigger.There is a jumper on the pcb to select if you want glide on the s/t\h at, Entropy out, or un-slewed operation. There is also a trimmer for setting the amplitude of the incoming signal at “Comp In” which sets the frequency range of random gates. This may have to be adjusted depending on your Entropy version.The random gate range can also be set up more as a noise oscillator by turning the pcb trim(clockwise) up or it can be set so random gates are extremely slow(trim counter clockwise) with minutes between random gates.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
available
This is the panel PCB version of this kit.Analog random voltage and noise generator that expands upon the features of the Entropy Euroack Module in 3 HP.The Entropy+Expander packs together some of the most random voltage options in 6 HP. It provides a controllable “Glide” (slew) out for the S/T\H, a comparator with a controllable rate (“Thrsh”) of random gates (“Rand Gate”) out with an input to compare other waveforms (Comp In, inserting a cable into here breaks the white noise normalization), and high pass filtered white noise resulting in approximate “Blue noise” (+3db/octave) and “Violet noise” (+6db/octave) outs.The unique part of the circuit is a voltage controlled A/B switch thats normalled to the “Rand Gate” out that’s switching between the S/T\H out (left Blue led window) and Infra out (right Red led window), the Glide control also effects the S/T\H coming out of the switch so you can get really random results from the “Entropy Out.” Inserting a cable into “Switch CV In” breaks the random gate normalization and lets you toggle between A/B (left S/T\H out and right Infra out, indicated by the led windows) with your own gate or trigger.There is a jumper on the pcb to select if you want glide on the S/T\H at, Entropy out, or un-slewed operation. There is also a trimmer for setting the amplitude of the incoming signal at “Comp In” which sets the frequency range of random gates. This may have to be adjusted depending on your Entropy version. The random gate range can also be set up more as a noise oscillator by turning the pcb trim (clockwise) up or it can be set so random gates are extremely slow (trim counter clockwise) with minutes between random gates.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
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The Trepanator is a 14 HP analog “Bent by Design” experimental instrument featuring a Dual VCO, Difference Rectifier, 3-band EQ, Sample/Track and Hold, and SVF (state variable filter) all built into one nonlinear module. Its origins trace back to a love for Rob Hordijk’s Benjolin and patching a similar pseudo chaotic feedback-based instrument from scratch using all Zlob modules.Although not based on Hordijk’s circuit or signal flow, it uses a similar architecture of dual voltage controlled oscillators, an “interference pattern generator,” a state variable filter, and internalized cross-patched feedback. Instead of a Rungler and comparator the Trepanator uses a sample/track and hold with slew, a difference/rectifier circuit (based on NLC), and a self-oscillating 3-band EQ. Utilizing this excessive feedback between the VCO’s, EQ, S/H, and SVF, creates a completely new instrument for discovering abstract electronic sounds. The Trepanator is a highly interactive, unpredictable, and an immediate instrument capable of a huge range of organic and sounds from: snarling, plucking, bubbling, screaming, gurgling, hissing, grunting, pinging, and quacking, to machine like rhythmic loops, circuit bent broken modem sounds, no-input mixer screeching, intermittent short wave radio fizzling, and full on Harsh Noise Wall all within the touch of a fader or a small knob turn without any external audio or any control voltage in.Double Sided PCB panel with Classic and Soulless.For more info consult the manual below and signal flow chart.RIP Rob HordijkDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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The Triple Cap Chaos(C^3 Chaos) is a 2hp analog, chaos based, noise oscillator, pseudo ring modulator/harmonics generator, and audio mangler.It is a unique module, like the Diode Chaos, because it has never existed as a musical instrument until now. There is also no other module to my knowledge that can do exactly what the Triple Cap can do. The circuit(with several modifications) is based on the paper “Simple Autonomous Chaotic Circuits” by J.C. Sprott and Jessica R. Piper. As opposed to the Diode Chaos that generates control voltage this module focuses on the audio rate.The “Emanate” potentiometer controls the coarser overall spectrum of the chaos, from lots of activity counter clock wise up to less chaos and more of a steady oscillation. The “Width, CV ATT” potentiometer can be thought of as more of a fine control for the chaos/oscillator. When something is inserted into the “CV” in the voltage normalization from the width knob is broken and the potentiometer now acts as an attenuator for the incoming cv. The Triple Cap is not a traditional volt per octave exponential VCO, and has a sort of narrow frequency range to exploit the chaotic behavior.It expects a +5v to -5v max signal in to modulate the chaos. The “IN” jack is an A.C. coupled input for audio in, although cv and audio can work for both the “CV” in jack and “IN.” The “IN” will interfere and interact with the onboard chaotic oscillator depending on the frequency of the input, which may take some experimentation. It can create ring mod ish sounds, to added harmonics, to almost bit crushed sounds depending on the “X” or “Y” output. The “X” output is a more windy noisy sinusoidal based output and the “Y” output is more squared off and aggressive, harsher sounding output.Some quirks about the Triple Cap: The “X” output can offset negatively or positively a little bit depending on the pot settings, but both outputs tend to stay around 10vpp. With the “Emanate” and “Width” pots all the way up the typical frequency will be around 150hz although some will reach 200hz at this setting. With the “Emanate” pot full counter clock wise “Width” pot full clock wise the frequency will be around 250hz. It is possible to send signals into the triple cap that can bring it out of the desired range causing the oscillation to cut out.The Triple Cap has a double sided panel. meaning one side has the classic graphics and the other is Soulless with less graphics.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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VC F3DB stands for Voltage Controlled Fixed Filter Feedback Distortion Bank. The simplest description is it’s an analog 16hp six band voltage controlled fixed filter bank. But with the additions of so much gain, clipping, feedback, and self-oscillation it becomes a very flexible and unique gestural sound sculpting tool capable of; graphic equalization over 6 octaves, multi-band distortion, spectral processing, crude vocoding, multi-frequency envelope following, self-modulation, and even as an instrument on its own. With no input it can be used as a pseudo chaotic “harmonic” feedback oscillator.The filter frequencies were specifically chosen to emphasize more ambiguous and dissonant intervals. Although the frequency bands are spread out over many octaves I purposely tried to leave out “3rds” besides a major 10th at the top frequencies to even out all the dissonance below. But the frequencies aren’t exactly equal tempered, so it’s relative. The bands roughly equate to F2, B3, F#5, C6, F7, A8.The design is based on the Moog 914 filterbank, which it borrows the frequency bands from. But this circuit uses active filters with opamps inspired by YU Synth opposed to passive cells using inductors on the original. The 88hz is a low pass -24db/oct and 7k is a high pass -24db/oct, the rest are -12db/oct band pass filters all with a Q around 4.The hard and soft clipping circuit on the input is fairly standard which appears in many different iterations of classic guitar pedals. But it has a lot of gain and can even boost line level signals. What makes it a bit unique is the feedback on the clipping circuit which needs to be turned on by the GFB(gain feedback) switch and the amount can be controlled by the Gain FB pot which can add some fuzz/bite to the signal depending on which clipping switch is engaged or at the extremes it will self oscillate from audio rate to LFO sort of clicking range. All the clipping stages in the module are using silicon diodes.Consult the Signal Flow Chart to the left for a rough visual breakdown of the controls,in/outs,normalizations, and optional settings for the module.Each band can also be muted by the top toggle switches or clipped(at the VCA) by the top slide switch which makes this design a bit different than other filter banks. As well as the overall feedback section(bottom middle) takes the sum/all bands out through a VCA(controlled by the feedback pot and FB CV) back to the input gain/clip circuit. and you can also tap into this using different sends/bands to the FB In jack to break the normalization. With this extra feedback “resonance” you can get more whistley and howly filter sounds kinda like the Serge res eq, which can also go into self oscillation.All CV ins are expecting +5v to open the VCAs (they wont respond to negative voltage), once you get closer to +8v or so it can clip the VCA regardless of the gain settings or clip switches. Output amplitude in high gain settings will exceed 10vpp and can get up to 20vpp. The envelope followers tend to stay around 0-5v out, but with clip switch active they can go up to 10v.Since this is a high gain module there can be bleed between the bands in certain configurations and situations. Also in high gain modes with higher frequencies the 2.8k and 7k bands can bleed a little with the VCAs closed.This is a highly involved DIY all through hole project. It is a long build with 5 different pcbs to solder and assemble.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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This is the panel PCB version of this kit.VC F3DB stands for Voltage Controlled Fixed Filter Feedback Distortion Bank. The simplest description is it’s an analog 16hp six band voltage controlled fixed filter bank. But with the additions of so much gain, clipping, feedback, and self-oscillation it becomes a very flexible and unique gestural sound sculpting tool capable of; graphic equalization over 6 octaves, multi-band distortion, spectral processing, crude vocoding, multi-frequency envelope following, self-modulation, and even as an instrument on its own. With no input it can be used as a pseudo chaotic “harmonic” feedback oscillator.The filter frequencies were specifically chosen to emphasize more ambiguous and dissonant intervals. Although the frequency bands are spread out over many octaves I purposely tried to leave out “3rds” besides a major 10th at the top frequencies to even out all the dissonance below. But the frequencies aren’t exactly equal tempered, so it’s relative. The bands roughly equate to F2, B3, F#5, C6, F7, A8.The design is based on the Moog 914 filterbank, which it borrows the frequency bands from. But this circuit uses active filters with opamps inspired by YU Synth opposed to passive cells using inductors on the original. The 88hz is a low pass -24db/oct and 7k is a high pass -24db/oct, the rest are -12db/oct band pass filters all with a Q around 4.The hard and soft clipping circuit on the input is fairly standard which appears in many different iterations of classic guitar pedals. But it has a lot of gain and can even boost line level signals. What makes it a bit unique is the feedback on the clipping circuit which needs to be turned on by the GFB(gain feedback) switch and the amount can be controlled by the Gain FB pot which can add some fuzz/bite to the signal depending on which clipping switch is engaged or at the extremes it will self oscillate from audio rate to LFO sort of clicking range. All the clipping stages in the module are using silicon diodes.Consult the Signal Flow Chart to the left for a rough visual breakdown of the controls,in/outs,normalizations, and optional settings for the module.Each band can also be muted by the top toggle switches or clipped (at the VCA) by the top slide switch which makes this design a bit different than other filter banks. As well as the overall feedback section(bottom middle) takes the sum/all bands out through a VCA (controlled by the feedback pot and FB CV) back to the input gain/clip circuit. and you can also tap into this using different sends/bands to the FB In jack to break the normalization. With this extra feedback “resonance” you can get more whistley and howly filter sounds kinda like the Serge res eq, which can also go into self oscillation.All CV ins are expecting +5v to open the VCAs (they wont respond to negative voltage), once you get closer to +8v or so it can clip the VCA regardless of the gain settings or clip switches. Output amplitude in high gain settings will exceed 10vpp and can get up to 20vpp. The envelope followers tend to stay around 0-5v out, but with clip switch active they can go up to 10v.Since this is a high gain module there can be bleed between the bands in certain configurations and situations. Also in high gain modes with higher frequencies the 2.8k and 7k bands can bleed a little with the VCAs closed.This is a highly involved DIY all through hole project. It is a long build with 5 different pcbs to solder and assemble.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.