

Finalsessioneurorack
- Size
- 167.8 × 146.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 137
- Nets
- 74
- Pads
- 366
- Tracks, vias
- 990, 40
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 5 Jul 2018
- Updated
- 1 Feb 2024
Overview
Finalsessioneurorack is an open-source printed circuit board by microresearch, from the microresearch/notes repository on GitHub. It is a 2-layer board of 167.8 × 146.7 mm with 137 parts on 74 nets, routed with 990 tracks and 40 vias.
It is built around the TL072, BAT48 and BC547, with the BC557 among its other parts. Its parts include 53 resistors, 22 capacitors, 20 diodes, 8 ICs and 4 connectors.
Main components
4TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational AmplifierBAT48
DO-351 Independent 25uA@40V 350mA 40V 900mV@500mA DO-35 Schottky Diodes ROHSSTMicroelectronicsSchottky DiodesBC547
TO-92Bipolar (BJT)Jiangsu Changjing Electronics Technology (CJ)BC557
TO-921 PNP 100mA 100nA 150MHz 45V 500mW 6V 800 90mV、250mV PNP TO-92 Bipolar (BJT) ROHSDDFBipolar (BJT)
Parts
137| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | 100K | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R1, R2, R2, R3, R3, R5, R5, R10, R10, R12, R13, R14, R30, R31, R32 +6 |
| 21 | 10K | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15, R17, R18, R19, R20, R21, R23, R25, R26, R27, R29, R33, R34, R35, R36, R37 +5 |
| 14 | 100K | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | power conn, power conn, RV1, RV1, RV2, RV2, RV3, RV3, RV4, RV4, RV5, RV5, RV6, RV6 |
| 14 | 1N4148 | Diodes_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18 |
| 10 | 100n | Capacitors_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C5, C5, C6, C6, C7, C8, C17, C18, C23, C24 |
| 8 | 47pF | Capacitors_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C1, C1, C4, C4, C12, C13, C15, C16 |
| 6 | TL072 | Housings_DIP:DIP-8_W7.62mm | U1, U2, U2, U3, U4, U5 |
| 4 | 330R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R8, R11, R11 |
| 4 | BAT48 | Diodes_ThroughHole:D_DO-35_SOD27_P10.16mm_Horizontal | D1, D1, D2, D2 |
| 2 | 100N | Capacitors_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C11, C14 |
| 2 | 10K | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | RV8, RV10 |
| 2 | 10uF | Capacitors_ThroughHole:CP_Radial_D5.0mm_P2.00mm | C19, C20 |
| 2 | 270K | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R4 |
| 2 | 2K2 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R22, R28 |
| 2 | 4k7 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R24, R40 |
| 2 | Conn_01x06_Male | Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm | J4, J4 |
| 2 | R_POT | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | RV7, RV9 |
| 2 | TL074 | Housings_DIP:DIP-14_W7.62mm | U6, U8 |
| 1 | BC547 | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q2 |
| 1 | BC557 | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q1 |
| 1 | Conn_01x08_Male | Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm | J5 |
| 1 | Conn_02x05_Odd_Even | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J1 |
| 1 | D | Diodes_ThroughHole:D_DO-35_SOD27_P10.16mm_Horizontal | D3 |
| 1 | D | Diodes_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D4 |
The 127 most common of 137 parts.
Questions
How big is the Finalsessioneurorack PCB?
It measures 167.8 × 146.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Finalsessioneurorack use?
137 parts, built around the TL072, BAT48, BC547 and BC557. 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 Finalsessioneurorack KiCad files?
From the microresearch/notes repository on GitHub, at the commit this page was made from: the board is final_session/finalsessioneurorack/finalsessioneurorack.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Finalsessioneurorack design in my own project?
Its repository states no licence, so its author keeps all rights: ask microresearch before reusing the design.
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