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David Haillant's Electronic stuff

シンセサイザー for the masses!

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Pot&Jack Chicklet

24 June 2025Stripboards & ProtoboardsDIY, Wiringdavid
9 mm potentiometer
16 mm potentiometer
3.5 mm Cliff jack socket

The Pot&Jack Chicklet is a versatile and compact PCB, designed to simplify the wiring of Cliff-style jack sockets and potentiometers (9 mm or 16 mm) in front-panel applications. It converts PCB-mounted components into through-hole connections, making them easier to integrate into point-to-point or hand-wired circuits.
Continue reading Pot&Jack Chicklet →

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Eurorack Power Bus – 14 – Plug&Play (SMD)

20 June 2025Eurorack Power Bus - 14david

Eurorack Power Bus 14 - SMD
The Eurorack Power Bus – 14 is available in pre-assembled SMD version.

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DM77 – V1.0 SMD

18 March 2025DM77david


The DM77 is a Eurorack-compatible drum synthesizer inspired by the classic Coron DS8, featuring improved characteristics.

Continue reading DM77 – V1.0 SMD →

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MIDI 1-to-8

4 February 2025MIDI 1-to-8Eurorack, MIDI, Splitterdavid


MIDI 1-to-8 is a MIDI/TRS 1 input to 8 outputs splitter for Eurorack.
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Moog-type High-pass Ladder VCF – V1.0

15 November 2024Moog Hi-pass Ladder FilterEurorack, VCFdavid


This is a Moog-inspired Voltage Controlled High-Pass Ladder Filter clone, based on the High Pass Filter by EFM (Electronics For Music).

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3U 84HP Eurorack Skiff Cases

8 November 2024Eurorack CasesCase, Eurorackdavid

Red and Black versions of the 3U 84HP Eurorack Case

I designed a new Eurorack case!
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Passive Multiple – 2HP

29 October 2024Passive MultipleEurorack, Multipledavid

Passive multiple 2HP
Passive Multiples are among the simplest and most essential modules you can find in a modular synth. You really need plenty of them!
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DM77 – V1.0b

27 September 2024DM77DM77, Drum, Eurorack, Updatedavid


The DM77 is a Drum Synthesizer, inspired by the Coron DS8, with improved characteristics.

Continue reading DM77 – V1.0b →

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Tuner 1.0

20 April 2024TunerArduino, Eurorack, Tuner, Utilitydavid


Your Eurorack tuner utility.

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Tuner 0.2

5 March 2024TunerEurorack, Tuner, Update, Utilitydavid

Tuner is a Eurorack and analog synth tuner utility.

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  • Electronic projects
    • Drums
      • 606BD
      • 606T
      • DM66
      • DM77
      • DS8
    • Eurorack Cases
    • Eurorack Power Buses
      • Compact Eurorack Power Bus
      • Eurorack Power Bus – 14
      • Eurorack Power Bus – 18
      • Eurorack Power Bus – 26
      • Eurorack Power Bus – 28
    • Filters
      • Moog Hi-pass Ladder Filter
      • MS-20 VCF Filter
    • MFOS
      • MFOS 10 Step Sequencer
      • MFOS Sound Lab Mini-Synth
      • MFOS Weird Sound Generator
      • Octave Switcher
    • MIDI
      • MIDI 1-to-8
      • MIDI8d
      • MIDI8d+
    • Power Supplies
      • Eurorack SMPS
      • Mini Dual Power Supply
    • Simple Modules
      • Simple LFO
      • Simple VCA
      • Simple VCO
    • Stripboards & Protoboards
      • Eurorack Stripboard
    • Utility Modules
      • 3to1 Precision Adder
      • Attenuator – Inverter
      • Divider
      • Mixer – 3 Mono Inputs
      • Mixer – 4 Mono Inputs
      • Passive Multiple
      • Tuner
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Recent Posts

  • Pot&Jack Chicklet
  • Eurorack Power Bus – 14 – Plug&Play (SMD)
  • DM77 – V1.0 SMD
  • MIDI 1-to-8
  • Moog-type High-pass Ladder VCF – V1.0

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