Modules

References for modules I have successfully built myself. DM me on IG if you need help @benjiaomodular. :)

Apr 8, 2022 euro2breadboard

A utility for connecting Eurorack +/-12V power to breadboards

+/-12v utilities

Mar 31, 2022 GranulArduino

A Granular synthesizer voice based on the Auduino project

Mar 11, 2022 MiniVCF

A 4HP Voltage Controlled Filter using a diode ladder design

+/-12v analog pcb

Feb 24, 2022 Oras

A pattern based clock using an Arduino Nano

Feb 15, 2022 MiniMult

A simple 2HP passive multples PCB

+/-12v +9v analog pcb

Feb 2, 2022 MiniADSR

A four parameter envelope generator on PCB

+/-12v analog pcb

Jan 17, 2022 Kwantizer

An Arduino-based CV quantizer. Input and output at 0 to +5V range.

+/-12v +9v arduino

Jan 3, 2022 Tech Tidbit: Mousebites

A way to print multiple boards on a single panel.

Dec 15, 2021 MiniVCA

A linear Voltage Controled Amplifier based around an LM13700 OTA IC.

+/-12v analog pcb

Dec 3, 2021 MiniOSC

A simple CD40106-based VCO with sawtooth and pulse waveform outputs.

+/-12v analog pcb

Sep 17, 2021 100 Kinds DSP Effects module

A circuit to adapt a karaoke effects unit to modular.

Aug 20, 2021 Wavefolder

A wavefolder module based on Ken Stone's design.

Aug 12, 2021 ADSR Envelope Generator

An envelope generator based on Rene Schimtz' "Fastest Envelope in the West".

Aug 6, 2021 Arduino-based LFO

A low-frequency oscillator based on HAGIWO's Ardiuno code and schematics.

Jul 30, 2021 Overdrive for Modular Synth

I tried to design an overdrive that works on +/-12V power.

Jul 17, 2021 Arduino-based FM VCO

A freqency-modulation VCO based on HAGIWO's design

Jul 9, 2021 PT2399 Delay

A delay module based on the PT2399 effects IC.

Jul 2, 2021 Active HPF

An active high pass filter based on a TL072 and a vactrol.

Jun 25, 2021 Dual Shape LM358 Oscillator

My take on the All About Circuits VCO.

Jun 18, 2021 NLC Bong0

The Bong0 module by Nonlinearcircuits.

Jun 4, 2021 Random Triggers and CV

An Arduino-based synth module that produces both randomized CV and randomized gates.

May 28, 2021 3-Channel Trigger Sequencer

A Baby-8 based sequencer with three trigger outputs for drums.

May 21, 2021 Metallic Hi-Hats

A metallic hi-hat module based on six square wave oscillators.

+/-12v analog drums

May 14, 2021 CD4081 AND Gate Module

An AND logic gate module using a CD4081 CMOS chip.

May 7, 2021 Another Resonant Low-Pass Filter

An improvement on my first LPF. This one runs on 18V power.

+/-12v 9v analog

Apr 30, 2021 Bridged-T Snare Drum

A snare drum module built around a bridged-t network filter configuration.

9v analog drums

Apr 23, 2021 Bridged-T Kick Drum

A kick drum module built around a bridged-t network filter configuration.

9v analog drums

Apr 16, 2021 Phase 90 LFO

Low frequency oscillator based on the MXR Phase 90's LFO block.

+/-12v 9v analog

Apr 11, 2021 Gate to Trigger

Utility circuit for converting gate signals into short triggers.

+/-12v 9v analog

Apr 9, 2021 8-Step Sequencer

An 8-step sequencer based on the classic Baby-8 design. Works on +9V power.

Apr 2, 2021 Simple Resonant Low Pass Filter

An OpAmp-based low pass filter based Moritz Klein's LPF tutorial. Works on +9V power supply.

Mar 26, 2021 AR Envelope Generator

An envelope generator with attack and release controls.

+/-12v 9v analog

Mar 19, 2021 Arduino-based Master Clock

A clock module based on an Arduino-nano, has multiple divisions and variable pulse widths.

+/-12v 9v arduino

Mar 12, 2021 Passive Vactrol VCA

A voltage-controlled attenuator using DIY vactrols.

+/-12v 9v analog

Mar 12, 2021 Passive Vactrol LPF

A completely passive low pass filter using DIY vactrols.

+/-12v 9v analog

Feb 17, 2021 CD40106 Oscillator Bank

The first analog module I've built using a CD40106 IC. Works on +9V power supply.