Modular
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This is an easy to build VCO with a really extensive documentation and explanation of the circuit. Excellent learning kit!The mki x es.EDU VCO is the first educational DIY kit in this series. It is an analog sawtooth-core oscillator with a reasonably accurate volt/octave tracking, made from just a handful of basic components. It features sawtooth and pulse outputs as well as 1V/oct, FM, and PWM inputs.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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Even though wavefolding is more of a west coast synthesis concept, it’s a great addition to the otherwise very east coast mki x es.edu DIY system. Why? Because it can provide a ton of unusual timbres for your patches: from a slight dash of brightness to harsh metallic drones. That’s why we came up with this super simple BJT-based double wavefolder.We – Erica Synths and Moritz Klein – have developed a series of educational DIY kits under the brand name mki x es.EDU with one specific goal in mind: to teach people with little-to-no prior experience how to design analog synthesizer circuits from scratch. What you’ll find in the box is not simply meant to be soldered together and then disappear in your rack. Instead, we want to take you through the circuit design process step by step, explaining every choice we’ve made and how it impacts the finished module.In total, we have developed 9 kits to build a fully-featured modular monosynth: a sequencer, a VCO, a wavefolder, a noise/S&H module, a mixer, a VCF, an Envelope generator, a dual VCA, and an output stereo mixer with a headphone amplifier. Additionally, an affordable eurorack case with a DIY PSU will also be available. While these kits are easy to build, we did not compromise on design and functionality. We will launch one kit every 4-6 weeks. For each kit, there is an extensive user manual (40+ pages; can be downloaded separately) that will dive deep into not only the electronics behind each circuit but also the fundamental principles of sound synthesis. We hope that the mki x es.EDU project will inspire future engineers and will contribute to the ever-growing diversity of electronic music technology.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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Pikocore XL is a Raspberry Pi–powered lo-fi music mangler originally developed by Zack Scholl.The Picocore has been reimagined by Erica Synths with a more playable, performance-ready design. The original Pikocore started life as a tiny pocket-calculator DIY device; Erica Synths worked with Zack to preserve the same functionality while giving it their signature hands-on interface and a sturdy aluminum enclosure.Features:• a lo-fi music mangler based on the Raspberry Pi Pico (brother of the nyblcore).• capable of holding 8 minutes of 8-bit 33 kHz monophonic samples.• powered by a single alkaline AAA battery for up to 3 hours or by powered by USB-C.• tempo-synced with a selectable BPM between 60 and 300, with samples mangled by beat-synced effects (stutter, retrig, gate, tunneling).• loaded with real-time effects like a resonant filter, timestretching, volume, and wavefolding.• sequenced with a 128-step sequencer with recording/playback• saved and loaded via EEPROM for instant patch recall.• able to load custom firmware, new samples, all through USB-C.• sync-compatible with Pocket Operators.• open-source, wonderfully hackable.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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Ok, a christmas module with pulsating lights does not make sense at all. But it’s for those nerds, who want to celebrate christmas in their Eurorack system. We made it for fun. We are sure this is one of the easiest DIY projects in the entire world. 4 LEDs, 2 resistors and a power header.DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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It's christmas time in your modular rack and this year we invented a proper christmas tree module! The LEDs of the tree change color and are used as oscillators to generate weirdo-sound. There are four sections with two LEDs each which modulate each other. You can patch the oscillator outs to the left or right output with mini-patch wires.With this DIY kit you have 2 options:1) The tree can be used standalone with a 9V battery as a simple light effect which is standing on a table etc. In this version there is no audio possible.2) You complete the whole module and solder the tree to the panel. Then you can make use of the full audio possibilities.This kit is perfect to build it with your kids or finally convince your partner, that modular maybe isn't that bad.DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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Pack of 2 Indicator Touch Points. These ones feature a bi-polar LED inside so you can easily detect the polarity of your signal. Of course you can use them in the same way like the original Touch Points.They are assembled and no DIY.
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5 Touch Points in black. We made them as an extension for our Touch Source, but of course you can use them without the module for wireless patching in your Eurorack system. We made them higher and smaller than comparable products or most DIY versions, so the Touch Points are easily accessible between cables and buttons in your system.
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5 Touch Points in orange. We made them as an extension for our Touch Source, but of course you can use them without the module for wireless patching in your Eurorack system. We made them higher and smaller than comparable products or most DIY versions, so the Touch Points are easily accessible between cables and buttons in your system.
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Explore wireless patching through Touch Points! Touch Source generates voltages between -10V and +10V, in the center is a touch plate with GND/0V. Place the Touch Points on any CV input of a module and connect a voltage to the Touch Point via your fingers. Or connect two Touch Points from any input to output through your body. Rule #1 is: there are no rules!Here is a review on Amazona (german) and some demo videos here and there.Touch Source includes 2 black Touch Points. Packs of 5 Touch Points are available separately in black or orange to visualize your signal flow. Packs of 2 indicator Touch Points with bi-plar LEDs are also available.The unit is pre-assembled and no DIY.
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Super Sixteen is a 64-step control voltage sequencer with gate, pitch, linear CV, and clock outputs, and a unique 2-handed programming interface that makes programming melodies, rhythms, an basslines a joy.Features:• Patch memory for 99 sequences• Up to 64 step sequence length• Selectable scales and swing timing• Intuitive motion recording• Per-step glide/portamento• Real-time rhythm and pitch effects like beat repeat, stutter roll, and randomization.• Code and hardware files are open-source for you to edit and experimentDIY-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 4XXX Compressor is a audio tool inspired by the legendary British stereo bus compressor that has shaped the sound of countless hit records since the 1980s. Often referred to as the “glue compressor,” it helps your entire mix come together seamlessly, delivering a polished, professional sound heard on classic and modern albums alike.Perfect for mixing and mastering, the 4XXX Compressor adds punch, warmth, and cohesion—especially to drums, making them pump, breathe and groove.This module is the result of a collaboration between Feedback Modules and CMS-LAB.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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THE CP3MINUS is the 6HP SMD variant of CP3+ Mixer, minus the MULTI section.Features:• 4 mono analog input• 4 input level pots• 1 dual level pot• One inverting and one non-inverting output jacks• Standard 10 pin euro power (+12V / -12V)DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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This is probably the fastest envelope generator in Modularland.Why? Because it is based on the fastest one. The classic Japanese modular from the seventies everyone loves.Features:• 4 control pots:Attack, Decay, Sustain, Release• 1 gate switch: triggers ADSR cycle• 1 time switch: switches between fast and slow envelope times• one normal and one inverting output jack 10V peak• standard 10 pin euro power (+12V / -12V)DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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This is an envelope generator based on the SMD AS3310. The AS3310 is a modern recreation of the classic Curtis CEM3310 chip, used in many famous mono and poly analogue synth from the eighties. We took the best ideas from all the classic 3310 circuits and tried to squeeze the maximum from this fantastic chip. The MODE switch takes this module beyond a simple ADSR type envelope generator.It can work as:• NORMAL - a conventional ADSR envelope,• DAMPED - an ADRR piano envelope approximation• AUTO - a short gate will cycle the envelope shaper through a complete ADR envelopeIt has an additional TRIGGER input which can be used for generating multiple peak envelopes.Features:• 4 control pots:Attack, Decay, Sustain, Release• 1 gate switch: triggers ADSR cycle• 1 mode switch: Normal (ADSR),Damp (ADRR),Auto (ASR)• 1re trigger input• standard 10 pin euro power (+12V / -12V)DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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This is an envelope follower based on a classic module from the seventies but with some improvements to suit modern needs.The IN signal is routed to the envelope follower circuit and also to a THRU output, so the original signal is also available for external processing.The envelope follower has three controls, a switch to select response time (fast, medium, slow), a pot to adjust GATE threshold and a pot to adjust the envelope CV level.This little module will help you shape the timbre and/or the level envelopes of your sounds. From dynamic envelope filtering to compressor like side chaining there are lots of possibilities to mangle your audio.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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HI-FUSION is a remake of the classic Polyfusion from the 70s with some improvements.It is a low pass OTA VCF based on the well known LM13700 ic.We chose to make this circuit because it's v/oct stable, and the trimmers allow to calibrate it properly.It has a switch for 2 pole and 4 pole configuration, each with it's own character and timbre.This design produces nice sounding filter fm results.Features:This kit contains all the parts needed to build a complete HI-FUSION module.• 1 audio input: IN• 1 audio level pot: ATT• 3 cv inputs: FREQ(with attenuator), FREQ (for v/oct), RESO• 1 cv level pot: FREQ CV (attenuator for FREQ cv input)• 2 vcf control pots: FREQ (frequency) and RESO (resonance)• 1 configuration type switch: 2P and 4P (2pole or 4 pole)• 1 output: OUT• standard 10 pin euro power (+12V / -12V)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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The JP8 VCF module is a versatile and authentic filter offering 2-pole (12 dB/oct) and 4-pole (24 dB/oct) low-pass modes, along with a high-pass filter. Built with AS3109D and AS662A ICs, WIMA polypropylene capacitors, and 2SK30ATM-GR J-FET transistors, it ensures high-quality performance.Key features include two mixed signal inputs, independent outputs for 2-pole and 4-pole modes, and an alternate output with selectable modes via a switch. CV inputs operate at 0-5Vpp, with attenuation available for 10Vpp signals through the CV1 pot.This module is a collaboration between Feedback Modules and CMS-LAB.Features:• AS3109D and AS662A, ALFA RPAR modern identical to the original IC clones• High Pass Filter made with AS662A• WIMA polypropylene capacitors• Selected 2SK30ATM-GR N-channel J-Fet transistor• Two mixed signal inputs• Independent outputs for 2-pole, 4-pole and an alternate output with selection of modes from a switch• The CVs are 0-5Vpp, 10Vpp CVs can be attenuated with the CV1 pot.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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Lazer Phazer it's at his core 2xSystem7xx phaser with a lot of addons.It can work as a stereo phaser, as a mono BI-Phaser, as two totally independent phasers, or as a 16stages phaser in series mode. Thath's not all, the LFOs of the phasers can work idendepently or linked. In inverted mode for stereo phase galore. The feedback can be modulated by internal LFOs, external CVs or both of them in the same time.Kits have 16 x 2SK30A fet transistors matched and selected from new old stock, so the retro sound it's totally there.This module is a collaboration between Feedback Modules and CMS-LAB.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 little module is an evolution of the LFO of the famous MS monophonic synth from the seventies, adapted to Eurorack.Features:• 2 control pots for FREQUENCY and WAVEFORM• 1 FREQUENCY RANGE switch: LOW and HIGHLOW - 18mHz (55sec)- 0,7Hz (81,4sec)HIGH - 0,63Hz (1,6sec) - 24Hz (42msec)• 2 outputs: SQUARE 0/10V Vpp and TRIANGLE -5/5V Vpp• Standard 10 pin euro power (+12V / -12V)DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.