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Compact Eurorack Power Bus – Updates

29 February 2016Compact Eurorack Power BusEurorack, Power bus, Schematic, Updatedavid

Updated BOM and documentation available:
Compact Euro Bus 16 – BOM & doc 20160229

New Context Wiring diagram:

Compact Eurorack Power Bus Context Wiring Diagram

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Simple LFO – LTSpice simulation

7 February 2016Simple LFOLFO, Op-Amps, Spicedavid

Just a quick update on the Simple LFO circuit. I was playing with LTSpice for some forthcoming modules when I decided to simulate the Simple LFO. The idea was to compare the simulation to a real working circuit.

LTSpice simulation of Simple LFO core circuit

Continue reading Simple LFO – LTSpice simulation →

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Eurorack Stripboard 1.2

27 December 2015Eurorack Stripboard, Stripboards & ProtoboardsBreadboard, Eurorack, PCB, Tindiedavid

An updated, corrected and simplified version of my Eurorack Stripboard is available!

PCB Top side

Continue reading Eurorack Stripboard 1.2 →

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Eurorack Stripboard

1 December 2015Eurorack Stripboard, Stripboards & ProtoboardsBreadboard, Eurorack, Fail, PCB, Tindiedavid


I always need to have, in my drawers, a quick and easy way to assemble and prototype small synth modules.

I think this the most convenient way to build a simple module. You just use it as a standard stripboard PCB but with neat additions.

Continue reading Eurorack Stripboard →

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Simple LFO update 1.1

20 November 2015Simple LFOKit, LFO, Panels, Simple Modules, Tindie, Updatedavid

New revision for the Simple LFO. It’s mostly a slight improvement of the output stage.

I added an buffering opamp on the output. Now, the output load doesn’t affect and modify anymore the signal frequency.
Continue reading Simple LFO update 1.1 →

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MS-20 LP & HP filter Clone experiments

8 November 2015MS-20 VCF FilterVCFdavid

I’m playing with a clone of the famous MS-20 filter.

Continue reading MS-20 LP & HP filter Clone experiments →

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Eurorack Power Bus – 14 Connectors

8 November 2015Eurorack Power Bus - 14, Eurorack Power BusesEurorack, Kit, Power bus, Power supply, Tindiedavid

After my first Compact Power Bus, I decided to go bigger and I designed a 14 connector Eurorack Power Bus.

Continue reading Eurorack Power Bus – 14 Connectors →

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Linear Eurorack Power Supply

18 October 2015Electronic projectsEurorack, Kit, Power supply, Transformerdavid

Linear regulation. +12V / -12V /+5V. Up to 1A.


Continue reading Linear Eurorack Power Supply →

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VCO : Quick and Dirty test

VCO under test (PWM). Two LFO, one 8 step sequencer from Razmasynth, and one DS8 clone. Everything’s mixed with my mono mixer.

7 October 2015NewsSound, VCOdavid

Attenuator – Inverter

21 September 2015Attenuator - Inverter, Electronic projectsAttenuator, Inverter, SMDdavid

The attenuator – inverter is a tool for modifying a voltage, Control Voltage (CV) or any audio signal.
Continue reading Attenuator – Inverter →

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      • Eurorack Power Bus – 14
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      • Eurorack Power Bus – 26
      • Eurorack Power Bus – 28
    • Filters
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