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 layers77 × 55 mm
Dual mixer
polykit/dual-mixer3Simple dual mixer schematics and PCB
- Size
- 77 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 33
- Pads
- 114
- Tracks, vias
- 132, 4
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Jan 2021
- Updated
- 19 Jan 2021
Overview
Dual mixer is an open-source printed circuit board by polykit, from the polykit/dual-mixer repository on GitHub. It is a 2-layer board of 77 × 55 mm with 40 parts on 33 nets, routed with 132 tracks and 4 vias.
It is built around the TL072. Its parts include 26 resistors, 4 capacitors and 2 ICs. It belongs with the audio and music boards of this library.
Main components
1README
README.mdPolykit Simple Dual Mixer
Simple dual mixer schematics and PCB based on two TL072 op-amps. It got 8 inputs, a normal and an inverted output on each mixer.
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22 +6 |
| 4 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R23, R24, R25, R26 |
| 2 | 10/35 | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1, C2 |
| 2 | 100n | Capacitor_THT:C_Rect_L7.0mm_W2.5mm_P5.00mm | C3, C4 |
| 2 | 10R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | FB1, FB2 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | OUT_A1, OUT_B1 |
| 2 | Conn_01x09 | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | IN_A1, IN_B1 |
| 2 | TL072 | Package_DIP:DIP-8_W7.62mm_LongPads | U1, U2 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | POWER1 |
| 1 | LOGO | synth:bär | G*** |
Questions
How big is the Dual mixer PCB?
It measures 77 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dual mixer use?
40 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 Dual mixer KiCad files?
From the polykit/dual-mixer repository on GitHub, at the commit this page was made from: the board is kicad/dual-mixer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dual mixer design in my own project?
Its repository states no licence, so its author keeps all rights: ask polykit before reusing the design.
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