4 layers144 × 78 mm
Controller mcu bu an 64 BIG PCB
Mo-MoS/controllers
Controllers for MIDI, USB, Software Synths, VST Plugins.
116 parts1
2 layers100 × 55 mm
Knobs 8 mux
Mo-MoS/controllers1Controllers for MIDI, USB, Software Synths, VST Plugins.
- Size
- 100 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 25
- Pads
- 90
- Tracks, vias
- 262, 23
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 30 Sep 2025
- Updated
- 22 Sep 2026
Overview
Knobs 8 mux is an open-source printed circuit board by Mo-MoS, from the Mo-MoS/controllers repository on GitHub. It is a 2-layer board of 100 × 55 mm with 12 parts on 25 nets, routed with 262 tracks and 23 vias.
It is built around the 74HC4067PW. Its parts include 2 connectors, 1 capacitor and 1 IC. It belongs with the audio and music boards of this library.
Main components
1README
README.mdControllers
Description
Controllers for MIDI, USB, Software Synths, VST Plugins.
Pictures
PCB boards for the 14 knobs of S2-OSC:
Functional prototype of S2-OSC in a livestream:
Paper scribble for the S2-OSC frontplate:
Prototype in handmade PCB boards for S2-OSC:
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | R_Potentiometer | eurorack_benjiao:Potentiometer_RV09 | RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8 |
| 1 | 100 nF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 74HC4067PW | Package_SO:SSOP-24_5.3x8.2mm_P0.65mm | U1 |
| 1 | to_analog_mux | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J1 |
| 1 | to_knobs | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J3 |
Questions
How big is the Knobs 8 mux PCB?
It measures 100 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Knobs 8 mux use?
12 parts, built around the 74HC4067PW. 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.
Where can I download the Knobs 8 mux KiCad files?
From the Mo-MoS/controllers repository on GitHub, at the commit this page was made from: the board is s2/kicad/knobs_8_mux/knobs_8_mux/knobs_8_mux.kicad_pcb and its schematic s2/kicad/analog_mux/analog_mux/analog_mux.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Knobs 8 mux design in my own project?
Its repository states no licence, so its author keeps all rights: ask Mo-MoS before reusing the design.
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