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2 layers100 × 40 mmDJ Mixer, the printed circuit board in 3D

A collection of PCBs for controlling other show hardware via MIDI or OSC

Size
100 × 40 mm
Copper layers
2
Thickness
1.6 mm
Parts
58
Nets
27
Pads
170
Tracks, vias
0, 0
Pours
1
Routed
Not yet
KiCad
KiCad 9.0 (file 20241229)
Created
17 Jan 2024
Updated
19 Jun 2026

Overview

DJ Mixer is an open-source printed circuit board by 8-Lambda-8, from the 8-Lambda-8/ShowControllPCBs repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 100 × 40 mm with 58 parts on 27 nets.

It is built around the 1N4148WS. Its parts include 21 capacitors, 16 diodes, 16 switches and 4 resistors. It belongs with the audio and music boards of this library.

Main components

1

README

README.md

A collection of PCBs with faders, buttons, encoders (and so on ...) for usage in an MIDI or OSC controller

Interactive BOMs:

Fader PCB

Button Matrix PCB

CAT-XLR Adapter PCB

Parts

58
QtyValueFootprintReferences
21100nFCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC1, C2, C3, C4, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21 +5
161N4148WSDiode_SMD:D_SOD-323_HandSolderingD1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16
16SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16
410kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR1, R2, R3, R4
1Fader_B10kLibrary:Fader B10KRV4

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Questions

How big is the DJ Mixer PCB?

It measures 100 × 40 mm and has 2 copper layers, 1.6 mm thick.

What parts does the DJ Mixer use?

58 parts, built around the 1N4148WS. 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 DJ Mixer KiCad files?

From the 8-Lambda-8/ShowControllPCBs repository on GitHub, at the commit this page was made from: the board is DJ-Mixer/DJ-Mixer.kicad_pcb and its schematic CAT_XLR/CAT_XLR.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the DJ Mixer design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).