
Multibus mainboard
coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

Open-source eurorack synthesizer modules and related stuff.
1u mult is an open-source printed circuit board by coriolisinstruments, from the coriolisinstruments/EurorackModules repository on GitHub. It is a 2-layer board of 28 × 22 mm with 5 parts on 2 nets, routed with 8 tracks and 0 vias.
It belongs with the audio and music boards of this library.
Open-source eurorack synthesizer modules. All our schematics and pcbs are developed with KiCad.
These are simple (passive) utility modules, designed to fit the Intellijel 1U spec. They are often smaller (6 or 8HP) so you can use them to fill gaps in your system. Except for the Multibus... that one takes up an entire row.
| Module | Description | |
|---|---|---|
![]() | LPG | A simple passive low-pass gate with -6dB slope in a small 1U package. |
![]() | Mute | A signal mute (momentary and latching) in a convenient 1U package. |
![]() | Mult | Dead simple passive multi. Its only feature being very small. |
| Multibus | A eurorack module for the distribution of CV signals. |
Just your regular sized eurorack modules.
| Module | Description | |
|---|---|---|
| Corona | A multi purpose vacuum tube (or valve) drive module with feedback control. |
| Thing | Description | |
|---|---|---|
![]() | PSU Companion | A companion for Bel / Condor / Power One linear power supplies. Goes inbetween the PSU and your busboards. |
| Making Vactrols | A little tutorial on making your own vactrols. |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | THONKICONNNEW | Coriolis-KiCad:MusicThingModular-WQP-PJ301M-12_JACK | J1, J2, J3, J4 |
The 4 most common of 5 parts.
It measures 28 × 22 mm and has 2 copper layers, 1.6 mm thick.
5 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the coriolisinstruments/EurorackModules repository on GitHub, at the commit this page was made from: the board is 1Utilities/1U_Mult/hardware/1u_mult/1u_mult.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask coriolisinstruments before reusing the design.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.

coriolisinstruments/EurorackModules
Open-source eurorack synthesizer modules and related stuff.


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