Eurorack modular kits

We created Gerber files for PCB-made front panels and did slight changes in module design in order to get rid of custom and rare components, however some modules still require rare ICs which are available here.

Projects are available on Github and each project folder contains complete information and files to build a module: schematics, Gerber files for a front panel, Gerber files for PCBs, BOMs, component placement with values and designators and assembly manuals (please note that some manuals are designed for older module versions). By making these projects open source Erica Synths accepts third party use for personal, educational or commercial purposes. 

Erica Synths will not provide any support for these projects so please refer to forums (Muffwiggler) for information on build nuances, troubleshooting, part availability or alternatives. 

Open source projects are: 

Bassline – all in one synth voice for acid basslines and drones 

BBD delay/flanger – all analogue effects unit based on V3205 BBD IC Delay – tape and digital delay unit with tap tempo, tempo sync, reverse, hold and add functions 

Dual VCA – Polivoks architecture inspired dual VCA, rare Russian differential op-amps are now replaced with AS3330 

Envelope – recreation of Polivoks envelope generator with loop and end of attack functions 

MIDI-CV – Polivoks functionality inspired dual MIDI-CV converter with glide function 

Mixer – simple 3 chanel audio mixer 

Modulator – Polivoks functionality inspired LFO, noise and S&H module 

Output – Output module with headphone amplifier 

Polivoks VCF – authentic recreation of the Polivoks VCF 

Swamp – our take of Wogglebug module with lots of unique extras 

VCO3 – Polivoks inspired VCO with nice extra – VCO Sync input

Thank you all for your ongoing support! 

In collaboration with Riga Technical University we are now working on educational DIY kits for simple and affordable eurorack modules. The announcement is scheduled for Autumn 2020.

The AI001 Multiple Eurorack Synthesizer Module is a 1x6 or a 2x3 passive multiple in only 2hp! It is critically important to be able to split and distribute your modular's signals to multiple destinations with the AI001 Multiple Eurorack Synthesizer Module. Because the module takes up only 2HP, they can be placed anywhere.

The Multiple Eurorack Synthesizer Module can be used as either a 2x3 passive multiple, or a 1x6. The first set of four are linked together, and if nothing is plugged into the 5th jack, then that signal continues to the 6th, 7th, and 8th as well. If a cable is plugged into the 5th jack, then those signals are distributed to the 6th, 7th, and 8th jacks and it functions as a 2x4 multiple.

This Multiple Eurorack Synthesizer Module kit will not only teach you how to solder, and teach you about Grounding and Signal flow, it will also add a key Multiple utility module to your DIY Modular Synthesizer.

This is an ideal kit for a beginner learning DIY electronics, and requires no wiring at all! All parts are soldered directly to the PCB for ease of building.

We recommend this Multiple Eurorack Synthesizer Module kit as the first DIY module you build. It is easy, and can be built in a single 5 minute sitting. If it works, you are ready to build other modules. We suggest the AI002 Mixer Synthesizer Module.

The Multiple Eurorack Synthesizer Module allows for the passive multiplication of signals. This allows you to, for instance, send the Envelope from a Looping ADSR Envelope Generator to control both a filter and an AI007 Quad VCA Mixer.

The Multiple Eurorack Synthesizer Module Kit contains everything you need to build your Multiple Eurorack Synthesizer Module:

• 3.5 mm Jacks (8)
• A PCB
• A 2HP Eurorack Panel
• Mounting Screws

Modular Synth Power KIT

Setting up and building a DIY modular system can be hard considering the price and technological knowledge required, especially when you’re trying to get the most bang for your buck. This is why we put together this Eurorack Power Kit to help you get started on building or upgrading your DIY Eurorack synthesizer cases while keeping the costs down.

ModularSynthLab Eurorack Power Kit makes modular synths cheaper, more accessible, cost-friendly, and easier to understand making this kit the perfect choice for both newcomers and seasoned professionals. Each kit comes with a Mean Well PSU along with power sockets and bus boards that offer just the right balance between quality, price, and performance.

The high-quality filtered bus boards are designed with 20 safety keyed Eurorack connectors and noise filtering capacitor banks to reduce noise generated by PSU and AC power signals. The 64.6W PSU in our Modular Synth Power Kit delivers high performance without emptying your pockets along with offering overload, over-voltage, and short-circuit protection so you can use it safely and confidently!

Order Today & Make The Smart Choice To Start Your Own DIY Modular Case Adventure The Affordable Way With ModularSynthLab Eurorack Power Kit!

IMPORTANT:

Mounting accessories are not included in KIT. They all can be purchased separately:

DETAILS:

• Manufacturer: MEAN WELL
• Bus boards manufacturer: ModularSyntLab
• PSU type: switched-mode
• PSU rated power: 64.6W
• 12V DC / 2800mA – 3500mA
• -12V DC / 500mA – 1000mA
• 5V DC / 5000mA – 8000mA
• Each output can work within the full current range. But total output power can’t exceed rated output power.
• Body dimensions: 129 x 98 x 38mm
• Weight: 440g
• PSU input voltage: 88-264V AC, 125-373V DC
• Protection: overload, voltage growth, short-circuit

DATASHEET:

RT65B datasheet: Download Datasheet

ATTENTION! Assembly and connection of any parts leading mains voltage (e.g. mains inlet, power supply board, cables) are allowed only by qualified personnel who are familiar with the applicable safety regulations! All parts that lead mains voltage (wires, PCB tracks, electronic parts) have to be fully isolated against damage to the device before the unit is powered so that accidental contact with these parts is not possible!

DIY Modules For Your Eurorack Modular System.

CHIASSO FM DRUM MODULE

CYLLENE ANALOG VCO

GIVE ANALOG VCO

GIVE II ANALOG VCO

EURO KASTLE VCO / LFO

OSCILLATORS & SOUND GENERATORS

TRIPLE TOM DRUM

KRACH AUS STROM THREE VOICE NOISE MAKER

FILTER & EQ

FRANZ OTA FILTER

WERNER FILTER / VCA

MODULATION & RANDOM

YAKSHA´S FATE

GENE ENVELOPE

CATCH S&H

LFOT

TRICAY DECAY

WAVE 4xLFO

CLANCHES

EFFECTS

IÑAKI 2xDELAY / PAN

REVERB

DELAY V2

EMOO PEDAL ADAPTER

MIXER & VCA

SUM 2 SIX CHANNEL „AFL“ MIXER

μSUM CP3 MIXER

FAY Mk2

FEED VCA

UTILITIES & PSU

In order to make requested information available to everyone in the builders community, please don´t write an e-mail but post your inquiry in the „ST MODULAR Builders Group“ on Facebook linked below:

WHAT ELSE?

DOWNLOADS

BILLS OF MATERIALS & PCB PICTURES

Bills of Materials, Interactive BOMs, Stencils, PCB Pictures and other helpful information is available in the ST MODULAR GitHub Repository. GitHub is a great platform to maintain, develope and trace data for projects. Please click on the GitHub Logo below:

QUESTIONS?

CHAINS SHADES

SWITCHED

POW!

PEDALPAL

TOOLBOX

PAE PAN/FADE

LFOR

TWO SIDES

DIZ

SEQUENCER

FLDSMDFR BRUTE SEQ

KARL STEREO FILTER

PYXIS

DA

ADSR

EFI FILTER

PATH SEQ SWITCH

VCA

HONEYEATER

For most larger ST Modular projects there are Interactive BOMs available. These will show the location of a selected part in an interactive *.html file in your standard browser. Additionally there is a „Highlight First Pin“ functionality that will help you to find the correct IC orientation. The iBOMs are located in the GitHub folders.

INTERACTIVE BILLS OF MATERIALS

STEREO VCA

2xLFO

ROCINANTE`S GATE

TRYFELO CLOCK LFO

MIA 2X2 MIX

BOBA FAT DUAL DRUM

HH

AUTHORIZED DEALERS

pushermanproductions.com

PUSH SEQ

1U FORMAT

UTILITY TOOL - CAUSE & EFFECT

SLIDE - FADER/MIXER

SL

DIRTY DAN VACTROL FLTR

2x2 MIXER/FADER - MIA

TOOLBOX - UTILITY MODULE

GOOD & EVIL LFO/RANDOM

PHOEBE FOUR CHANNEL „AFL“ MIXER

GRITZNER DELAY

3xEQ

RENEPOW - RENEGADE POWER SUPPLY MODULE

RENEMIX - 6 CHANNEL CV MIXER, FADER AND VOLTAGE SOURCE

RENEMULT - DUAL MULT AND DUAL SWAP

RENELFO - DUAL LFO

RENEGADE 0HP SERIES

STEREO SUM CUSTOMIZABLE STEREO MIXER

WORKBENCH - 0HP USB POWERED MULTI UTILITY MODULE

MIXBENCH - 0HP USB POWERED DJ STYLE STEREO MIXER

3u-shop.de

exploding-shed.com

STEREO EQ

elkelektronik.com.au

STEREO COMP

CV SCAN

UIT BAL OUT

MULT

USB PWR

RADIO

WORKMATES

SINGER DELAY

STEREO TOTAL

DUCK

CAUSE & EFFECT

OBERHAUSEN COMPLEX OSCILLATOR

CV BENCH - 0HP USB MIDI TO CV INTERFACE

SLOPES QUAD SLOPE

ENVELOPE CV ADSR

ONCE IN A WHILE

The 16n AtoVproject Rework is aimed a solving a problem very specific to modular synthesis. As a patch is getting more and more complex a forest of cables has grown over your system before you know it. This module allows you to take the control from the modular into a very ergonomic controller that integrates perfectly into a modern studio.

The 16n AtoVproject Rework is a controller sending CV, I2C, MIDI jack, USB MIDI (compatible PC, Mac, iPad etc...), making it the absolute ultimate controller for any of your hardware and software all in one!

Even better this controller can either can either be used as a Eurorack module or as a standalone unit using the beautiful aluminum enclosure. In 2019, the Berlin Modular community showed interest into building the 16n Faderbank. As one of the Berlin Modular community organizers, I decided to make a redesign of the 16n faderbank following the suggestions and desires of our members. The 16n AtoVproject Rework is the result.

This unit features :

• 16 high high end Alps faders

• Eurorack compatible and standalone enclosure (for use in or out of the rack)

• Selectable 0-5V or 0-10V CV output range (independent setting for each faders)

• High stability power conditioning for high stability analog inputs.

• Addition of utility connector on the back of the unit to simplify the use of i2c with modules like the ER301

This version of the 16n Faderbank ships with:

• AtoVproject 16n Rework Eurorack module

• Enclosure for standalone use (Alumunium Powder coated)

• USB cable (High quality 1,5m braided and shielded)

• MIDI din to Jack adapter (90° angled, Type A)

• Eurorack Power Cable

The 16n AtoVproject rework is a complete redesign of the original open source (CC-BY-SA) project 16n faderbank. This project was originated by Brian Crabtree, Sean Hellfritsch, Tom Armitage, Brendon Cassidy. As wished by the original designers the 16n AtoVproject rework is also open source and uses the same CC-BY-SA licence.

This is a Do-It-Yourself kit, not an assembled module. Building instructions can be found here.

DIY level: medium