cTOP – cTOPconsult

The Willem Twee Studios

On October 24, 2022October 24, 2022 By cTOP

I saw the Willem Twee Studios! A little intro: I have followed Hainbach on YouTube since he started in his living room, mainly because he makes really good music, but

Categories : 3D Printing Arduino ctonnp SYNTH Electronic Design Eurorack UncategorizedTags : Analog VCO Electronic Design envelope Eurorack Maker Synth synthesizer VCO waveform

Recreating my lost synth

On October 20, 2022October 20, 2022 By cTOP

While all world was in corona lockdown I worked on a new series of Eurorack modules. One goal was to make four sets of modules, and each set should be

Categories : Arduino Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design Eurorack Sequencer synthesizer

32step Sequencer

On July 21, 2020October 19, 2022 By cTOP

Most commercially available analog sequencers are rather expensive and take up a lot of space. Since I am only interested in having a small rack for testing modules that I

Categories : Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design Eurorack Excel tool patchcables synthesizer

Recreate Patching

On June 2, 2020June 3, 2020 By cTOP

I made a simple Excel-tool to document resources and cable patching on my Eurorack Synth. With a modular synth it can be difficult to recreate a nice cool sound after

Categories : Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design Eurorack Reverb Spring Reverb synthesizer Tonn-Petersen

Dual Reverb

On June 2, 2020October 19, 2022 By cTOP

My latest module for spring reverb is heavily inspired by the good advice you can find on Rod Elliot, ESP . My own contribution is that I have made it a

Categories : Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design Eurorack gain control Oscillator Sine wave synthesizer thermocouple waveform Wien bridge

New Job for a Strange Component

On April 12, 2020October 19, 2022 By cTOP

Can you guess the purpose of the component shown above? Four wires goes into the glass bulb. From the tip of each wire, very thin wires connect to a

Categories : Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design Eurorack mixermodule synthesizer waveform

Simple Mixer Module

On March 30, 2020October 19, 2022 By cTOP

This module is a very simple mixer: 7 inputs 7 potentiometers Linear potentiometers also mix CV-signals Two summing ‘op-amps’ With two outputs used Four upper inputs go to the

Categories : Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design Eurorack odd harmonics synthesizer VCO waveform

Odd Harmonics

On March 29, 2020October 19, 2022 By cTOP

This new module generates two selectable odd harmonics with reference to the sine input, and in addition “slices” the sine according to the ramp input and the

Categories : Electronic Design Eurorack UncategorizedTags : cTOPconsult Electronic Design envelope Eurorack synthesizer waveform

Simple Mixer, Envelope and “VCA” Module

On March 17, 2020October 19, 2022 By cTOP

My “Cute Little Eurorack” is shown elsewhere here on my blog. It was OK, but needed a few simple features just for testing modules during development: Signal mixer, VCA

Categories : Electronic Design Eurorack UncategorizedTags : Electronic Design ringmodulator synthesizer waveform

Germanium Ring Modulator

On March 17, 2020October 19, 2022 By cTOP

A good ring-modulator is a “must have” in any well equipped synth. I made this little design using four carefully selected germanium diodes as the exponential element. Germanium seems