Africa’s first Home made Modular Synth

Published on Jan 14, 2019 TheDIYer

“A few months ago I dipped my feet into the world of modular synths. The entire African continent has only one shop selling Euro rack modules which is really sad. Also, Euro rack modules are overly priced for someone in my context. My only option was to go the DIY route. I looked up schematics and started modifying some circuits and building others from

Evil Turtle Productions RezzoDrone prototype 2 – Resonant Drone Synth

Published on Jan 17, 2019 R.O.T. Studios

I believe this is the first Evil Turtle post on the site.

“Now with 3 voices. Each voice has an oscillator and LFO which excite and modulate a resonant circuit. Schematic of first prototype is here:…”

New Mystic Circuits 0HP Envelope

Published on Jan 15, 2019 Mystic Circuits

“Dont let the name fool you, this module is quite a bit more than just an envelope. Patch in a gate and your output will behave as a normal sustain- release envelope, staying high while the gate is high and slowly decaying once it goes low. Patch in audio and you have an envelope follower, extracting amplitude data from whatever signal is coming in.

Kit Overview #34 – Majella VVCA

Premiered 23 minutes ago Synth Diy Guy

“A super cool VCA module with velocity CV inputs!
A great beginner SDIY project too 🙂

Get yours at the best stores in Eurorack DIY, or directly here:…

Background music: Hallowed Beach by Quincas Moreira, available royalty free from the Youtube Audio Library:…”

Note this

Frequency Central Product

via Frequency Central

“Product is a full featured modular synthesiser which you can use without patching. Or you can use it as the heart of your modular system. Each component part is fully modular, but also features pre-patched normalised signal paths for fast set up of new and exciting sounds.

Product is available both fully assembled and as a PCB/panel set.

Product PCB set, and panel: £75

The Ganesh – Probability-based Eurorack Sequencer

via @BelaPlatform,
via The Bela Blog:

“The Ganesh is a probability-based hardware sequencer created by Jon Pigrem. The sequencer uses Bela and the Multiplexer Capelet and is built for the Eurorack modular format providing varied and exciting rhythmic patterns. Over to Jon to tell us more:

Sequencing with chance
The Ganesh provides 3 channels of 16 step sequencing. Each potentiometer

DIY Keyboard Synthesizer by Niklas Wallin

Published on Jan 6, 2019 Niklas Wallin

“Quick demo of my synthesizer..
First doing reset of sound, then some pwm and xfade modulations and such..”

Some additional info via Niklas:

“It has 8voices , every voice has two oscillators, every oscillator has two waves that can be crossfaded. There are two filters, connected to each oscillator. The one connected to osc1 has some resonance. It’s

nonlinearcircuits SPASM – LDR controlled (!) chaos

Published on Jan 4, 2019 cirtcele

“This module takes the classic Sprott jerk circuit and replaces all the resistors with LDRs…..a 7 way vactrol.”

“This module takes the classic Sprott jerk circuit and replaces all the resistors with LDRs…..a 7 way vactrol. This means the brightness of the LED in the giant vactrol controls the frequency of the circuit.

It is a very easy build and will

nonlinearcircuits GENiE 1 – GEneralized Nonlinear Extrapolator

Published on Jan 4, 2019

“This module is made of 3 neuron circuits and a difference rectifier.”

“GEneralized Nonlinear Extrapolator

This module is made of 3 neuron circuits and a difference rectifier. The neuron outputs are fed to the switching pins of the next neuron’s attenuated input; 1>2, 2>3, 3>1. This means the circuit will work with a single input signal, delivering all kinds of

HKA Design Roland TR-626 ROM expansion

Published on Jan 1, 2019 dothkoi

“refer to the following pages…”

Be sure to check out HKA Design’s other DIY projects. HKA Design is run by Harry Axten whose work has been featured here on MATRIXSYNTH.

“My TR-505 ROM Expansion has proven itself to be a popular kit, but I was regularly asked if it would work with the TR-505’s big brother, the Roland