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2 layers40 × 109 mmOctal, the printed circuit board in 3D

Open Source Eurorack Modules

Size
40 × 109 mm
Copper layers
2
Thickness
1.6 mm
Parts
136
Nets
79
Pads
393
Tracks, vias
913, 82
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
17 Jan 2022
Updated
21 Jun 2023

Overview

Octal is an open-source printed circuit board by rafael-mindreau, from the rafael-mindreau/MindreauAudio repository on GitHub. It is a 2-layer board of 40 × 109 mm with 136 parts on 79 nets, routed with 913 tracks and 82 vias.

It is built around the MB1S. Its parts include 70 resistors, 30 capacitors, 17 connectors, 7 ICs and 2 inductors. It belongs with the audio and music boards of this library.

Main components

1

README

README.md

Mindreau Audio

This repository consists of all open-source Eurorack modules created and designed by @rafael-mindreau for the community. Feel free fork this and make it your own. All modules have their own build docs.

Modules in this package

  • Octane

Parts

136
QtyValueFootprintReferences
53100kResistor_SMD:R_0603_1608MetricR10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +37
1610pFCapacitor_SMD:C_0603_1608MetricC1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16
1647kResistor_SMD:R_0603_1608MetricR1, R2, R3, R4, R5, R6, R7, R8, R36, R37, R38, R39, R40, R41, R42, R43
16WQP-PJ301M-12_JACKConnector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHolesJ1, J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, J13, J14, J15, J16
12100nCapacitor_SMD:C_0603_1608MetricC19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30
8100kPotentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_VerticalRV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8
6TL074Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU1, U2, U3, U4, U5, U6
210µFCapacitor_SMD:CP_Elec_5x5.4C17, C18
2Ferrite_BeadInductor_SMD:L_0603_1608MetricL1, L2
110kResistor_SMD:R_0603_1608MetricR70
1EURORACK CONNECTORConnector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical_SMDJ17
1LM4040DBZ-10Package_TO_SOT_SMD:SOT-23U7
1MB1SPackage_SO:SOP-4_3.8x4.1mm_P2.54mmD1
1Val**MindreauAudio:drawingRef**

Questions

How big is the Octal PCB?

It measures 40 × 109 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Octal use?

136 parts, built around the MB1S. 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 Octal KiCad files?

From the rafael-mindreau/MindreauAudio repository on GitHub, at the commit this page was made from: the board is Octane/Hardware/Octal.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Octal design in my own project?

Its repository states no licence, so its author keeps all rights: ask rafael-mindreau before reusing the design.

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