2 layers20 × 100 mm Boost pcb, the printed circuit board in 3D

Boost pcb

A collection of free & open source DIY synthesizer module designs for Eurorack

Size: 20 × 100 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 29
Nets: 20
Pads: 85
Tracks, vias: 239, 3
Pours: 1
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 17 Dec 2019
Updated: 3 Nov 2026

Overview

Boost pcb is an open-source printed circuit board by QuinnFreedman, from the QuinnFreedman/modular repository on GitHub. It is a 2-layer board of 20 × 100 mm with 29 parts on 20 nets, routed with 239 tracks and 3 vias.

Its parts include 12 resistors, 7 capacitors, 3 connectors, 2 diodes and 1 IC. It belongs with the audio and music boards of this library.

README

README.md

This project is an attempt to make Eurorack modular synthesis affordable and accessible to everyone.

This repository contains open source software and hardware schematics for Eurorack modules which are designed to be assembled easily and cheaply without any technical knowledge. Every module should be able to be assembled for around $20 in about an hour of work, even with limited experience.

To get started, check out some of the links below. Or get in touch! Send me a message at freemodular@gmail.com. Follow my reddit, Etsy shop, or GitHub.

Happy travels on your modular journey!

Go to the website to see more

Modules

{% include_relative docs/modules.md %}

Parts

Qty	Value	Footprint	References
2	100k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R10, R11
2	100nF	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C4, C5
2	10k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R1, R4
2	10uF	Capacitor_THT:CP_Radial_D4.0mm_P1.50mm	C6, C7
2	1N4148	Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2
2	50k	FreeModular:Alpha_Potentiometer_Grounded	RV1, RV2
2	THONKICONN	FreeModular:THONKICONN	J2, J3
1	10nF	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C2
1	15k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R9
1	18k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R6
1	1k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R12
1	2.4k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R3
1	24k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R2
1	2N3904	Package_TO_SOT_THT:TO-92_Inline_Wide	Q1
1	2k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R5
1	2x5 IDC	Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical	J1
1	33pF	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C3
1	470nF	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C1
1	560k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R8
1	750k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R7
1	TL074	Package_DIP:DIP-14_W7.62mm	U1
1	logo_very_small	FreeModular:logo_very_small	G1

Questions

How big is the Boost pcb PCB?

It measures 20 × 100 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Boost pcb use?

29 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.

Where can I download the Boost pcb KiCad files?

From the QuinnFreedman/modular repository on GitHub, at the commit this page was made from: the board is modules/Boost/PCBs/boost_pcb/boost_pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Boost pcb design in my own project?

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

Category and platform

Audio and music

Topics

eurorack music modular

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/quinnfreedman-modular-boost-pcb" title="Boost pcb in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/quinnfreedman-modular-boost-pcb.jpg" alt="Boost pcb" width="1200" height="900">

A picture that opens the board, for a README

[![Boost pcb](https://pcbkit.io/embed/boards/quinnfreedman-modular-boost-pcb.jpg?size=s)](https://pcbkit.io/boards/quinnfreedman-modular-boost-pcb)

Source

Repository: QuinnFreedman/modular
Board file: modules/Boost/PCBs/boost_pcb/boost_pcb.kicad_pcb
Commit: c78d208
Homepage: freemodular.org
Licence: Not stated

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