2 layers174 × 58 mm
Breakout 112pin Connector
rusefi/rusefi
rusefi - GPL internal combustion engine control unit
42 parts1.2k
2 layers62.2 × 128.5 mm
Multbuf
shmuga/eurorackDIY Eurorack modules
- Size
- 62.2 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 21
- Pads
- 110
- Tracks, vias
- 168, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Jan 2025
- Updated
- 26 Jan 2025
Overview
Multbuf is an open-source printed circuit board by shmuga, from the shmuga/eurorack repository on GitHub. It is a 2-layer board of 62.2 × 128.5 mm with 42 parts on 21 nets, routed with 168 tracks and 0 vias.
Its parts include 10 resistors, 9 connectors, 6 capacitors, 4 diodes and 2 ICs.
README
multbuf/README.mdmultbuf
A simple dual buffered multiple module with LED indicating the polarity of the input signal, printed with panel. Make sure to remove order number.
Schema file: link PCB ready for pinting: link
PCB
Pcb is fully through hole and easy to solder. Note that power connector should be soldered from the other side
BOM
| Reference | Value | Qty | Comment |
|---|---|---|---|
| C1,C2 | 10uf | 2 | 35V Electrolytic capacitor |
| C3,C4,C5,C6 | 100nf | 4 | |
| D1 | LED1 | 1 | bipolar LED |
| D2 | LED2 | 1 | bipolar LED |
| J1 | POWER | 1 | 2x5 POWER Connctor |
| J2 | IN1 | 1 | Thonkiconn - 3.5mm Jack |
| J3 | OUT11 | 1 | Thonkiconn - 3.5mm Jack |
| J4 | OUT12 | 1 | Thonkiconn - 3.5mm Jack |
| J5 | OUT13 | 1 | Thonkiconn - 3.5mm Jack |
| J6 | IN2 | 1 | Thonkiconn - 3.5mm Jack |
| J7 | OUT21 | 1 | Thonkiconn - 3.5mm Jack |
| J8 | OUT22 | 1 | Thonkiconn - 3.5mm Jack |
| J9 | OUT23 | 1 | Thonkiconn - 3.5mm Jack |
| R1,R6 | 100K | 2 | 1/4 W |
| R2,R7 | 330 | 2 | 1/4 W |
| R3,R4,R5,R8,R9,R10 | 1K | 6 | 1/4 W |
| U1,U2 | TL074 | 2 |
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R5, R8, R9, R10 |
| 4 | 100nf | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3, C4, C5, C6 |
| 2 | , | ||
| 2 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R6 |
| 2 | 10uf | Capacitor_THT:CP_Radial_Tantal_D5.0mm_P2.50mm | C1, C2 |
| 2 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R7 |
| 2 | IN1 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_PANEL | JJ1, JJ1 |
| 2 | OUT11 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_PANEL | JJ2, JJ2 |
| 2 | OUT12 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_PANEL | JJ3, JJ3 |
| 2 | OUT13 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_PANEL | JJ4, JJ4 |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm | U1, U2 |
| 1 | IN1 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J2 |
| 1 | IN2 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J6 |
| 1 | LED1 | LED_THT:LED_D3.0mm_Clear | D1 |
| 1 | LED1p | LED_THT:LED_D3.0mm_Clear_PANEL | D1Hp |
| 1 | LED2 | LED_THT:LED_D3.0mm_Clear | D2 |
| 1 | LOGO | LOGO | G*** |
| 1 | OUT11 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J3 |
| 1 | OUT12 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J4 |
| 1 | OUT13 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J5 |
| 1 | OUT21 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J7 |
| 1 | OUT22 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J8 |
| 1 | OUT23 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J9 |
| 1 | POWER | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 1 | led1p | LED_THT:LED_D3.0mm_Clear_PANEL | D1Hp |
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Questions
How big is the Multbuf PCB?
It measures 62.2 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Multbuf use?
42 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 Multbuf KiCad files?
From the shmuga/eurorack repository on GitHub, at the commit this page was made from: the board is multbuf/multbuf.kicad_pcb and its schematic multbuf/multbuf.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Multbuf design in my own project?
Its repository states no licence, so its author keeps all rights: ask shmuga before reusing the design.