2 layers91.2 × 108.2 mm
2 layers95 × 108.2 mm
Adder
Len42/Synth50Eurorack synthesizer module designs
- Size
- 95 × 108.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 31
- Pads
- 176
- Tracks, vias
- 288, 6
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 9 Dec 2021
- Updated
- 27 Nov 2024
Overview
Adder is an open-source printed circuit board by Len42, from the Len42/Synth repository on GitHub. It is a 2-layer board of 95 × 108.2 mm with 55 parts on 31 nets, routed with 288 tracks and 6 vias.
It is built around the TL072. Its parts include 22 resistors, 12 capacitors, 11 connectors, 4 ICs and 2 diodes. It belongs with the audio and music boards of this library.
Main components
1README
modules/Noise-SH/README.mdNoise / Sample & Hold
4HP Eurorack Module
Features
- White and pink(ish) noise output
- Sample-and-hold with variable slew rate
- S&H can be triggered by an internal clock or external input
- Internal clock is output on the trigger jack when selected
Notes
This module is built using the Delptronics Module Construction Set which includes PCBs for the front panel controls and other components. The PCB layout file is just a guide showing how I placed the components on the Delptronics boards. (It's a bit of a mess - sorry!)
Please note that I am a hobbyist, not a trained electronics engineer. No guarantees!
Acknowledgements
Software Used
KiCad 5.1.10-1
© 2022 Len Popp
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 10K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5, R6, R7, R8, R9, R14, R15, R16, R17, R18, R19 |
| 8 | 100N | -lmp-misc:C_Disc_D5.0mm_W2.5mm_P2.50mm | C5, C6, C7, C8, C9, C10, C11, C12 |
| 8 | WQP-PJ398 | -lmp-synth:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J1, J2, J3, J4, J5, J6, J7, J8 |
| 6 | 1M | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R11, R12, R13 |
| 2 | 10U | -lmp-misc:CP_Radial_D5.0mm_P2.50mm | C3, C4 |
| 2 | 1K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R21, R22 |
| 2 | 270R | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10, R20 |
| 2 | 5P6 | -lmp-misc:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2 |
| 2 | LED_Bidi | LED_THT:LED_D3.0mm | D1, D2 |
| 2 | Logo_CC_BY | -lmp-misc:Logo_CC_BY | G1, G2 |
| 2 | Logo_OSHW | -lmp-misc:Logo_OSHW | G3, G4 |
| 2 | TL072 | Package_DIP:DIP-8_W7.62mm | U2, U3 |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm | U1, U4 |
| 1 | Conn_Back | Connector_PinHeader_2.54mm:PinHeader_1x13_P2.54mm_Horizontal | J11 |
| 1 | Conn_Eurorack_10 | -lmp-synth:IDC-Header-Eurorack-10-TH | J9 |
| 1 | Conn_Front | Connector_PinSocket_2.54mm:PinSocket_1x13_P2.54mm_Vertical | J10 |
Questions
How big is the Adder PCB?
It measures 95 × 108.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Adder use?
55 parts, built around the TL072. 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 Adder KiCad files?
From the Len42/Synth repository on GitHub, at the commit this page was made from: the board is modules/Adder/Adder.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Adder design in my own project?
Its repository states no licence, so its author keeps all rights: ask Len42 before reusing the design.
More from Len42/Synth
12- 2 layers101.3 × 108.2 mm
- 2 layers111.5 × 106.4 mm
- 2 layers111.3 × 108.2 mm
- 6 layers101.6 × 108.2 mm
- 2 layers111.3 × 102.6 mm
- 2 layers91.4 × 108.2 mm
- 2 layers98.5 × 89.2 mm
- 6 layers101.6 × 106.7 mm
- 2 layers94.2 × 108.2 mm
- 2 layers88.8 × 108.2 mm
- 2 layers15.2 × 27.9 mm
Similar boards
- 2 layers148 × 84.5 mm
Panel daisy
ohmtech-rdi/eurorack-blocks
Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust
259 parts410 - 2 layers39.6 × 99.1 mm
ESP32-Eurorack Audio
ctag-fh-kiel/ctag-tbd
CTAG TBD >>to be determined<< an extendible open source Eurorack sound module
128 parts260 - 4 layers121.9 × 109.2 mm
Plinkyblack hwmidi jacks
plinkysynth/plinky_public
a public release of the plinky sw and hw
300 parts227 - 2 layers58 × 110 mm
- 2 layers37 × 113.9 mm
- 2 layers111.3 × 106.4 mm
Super Sixteen v1
matthewcieplak/super-sixteen
Code and schematics for the Super Sixteen Eurorack sequencer
141 parts171 - 2 layers27.9 × 101.6 mm
MFOS Eight Stage Phase Shifter - Main
mzuelch/CATs-Eurosynth
Analog Synth Eurorack Modules
105 parts166MIT - 2 layers85.1 × 62.2 mm
Mic extension board
StoneRose35/cortexguitarfx
guitar effects processor implemented on various arm cortex platforms
75 parts146