2 layers141.8 × 107 mm
2 layers60.2 × 109.9 mm
all the colours of the noise
- Size
- 60.2 × 109.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 176
- Nets
- 157
- Pads
- 554
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Mar 2018
- Updated
- 31 Mar 2025
Overview
Filter is an open-source printed circuit board by microresearch, from the microresearch/allcolours repository on GitHub. It is a 2-layer board of 60.2 × 109.9 mm with 176 parts on 157 nets.
It is built around the LM13700M. Its parts include 77 resistors, 56 capacitors, 14 ICs, 8 diodes and 7 transistors.
Main components
1Parts
176| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 47nF | Capacitors_SMD:C_0805 | C2, C11, C12, C13, C14, C15, C16, C17, C19, C21, C24, C25, C26, C27, C28, C29 +8 |
| 19 | 100N | Capacitors_SMD:C_0805 | C37, C38, C39, C40, C41, C42, C43, C44, C45, C46, C47, C48, C49, C50, C51, C53 +3 |
| 15 | 1K | Resistors_SMD:R_0805 | R6, R10, R12, R16, R18, R20, R26, R30, R32, R33, R49, R52, R54, R68, R69 |
| 12 | 10K | Resistors_SMD:R_0805 | R3, R4, R7, R8, R13, R14, R15, R17, R21, R22, R23, R24 |
| 11 | 47K | Resistors_SMD:R_0805 | R9, R29, R31, R36, R37, R57, R58, R61, R62, R93, R94 |
| 8 | AUDIO-JACKERTHENVAR | erthenvar:ERTHENVAR-JACK | M1, M3, M4, M5, M6, M7, M8, M9 |
| 7 | 100K | Resistors_SMD:R_0805 | R1, R5, R11, R19, R27, R44, R53 |
| 6 | 22K | Resistors_SMD:R_0805 | R40, R41, R45, R48, R50, R71 |
| 6 | Q_PNP_BEC | TO_SOT_Packages_SMD:SOT-23 | Q1, Q3, Q4, Q5, Q6, Q7 |
| 5 | 100nF | Capacitors_SMD:C_0805 | C1, C4, C10, C20, C31 |
| 5 | 10P | Capacitors_SMD:C_0805 | C33, C34, C35, C36, C52 |
| 5 | 1N4148-Diode | Diodes_SMD:D_SOD-123 | D4, D5, D6, D7, D8 |
| 5 | 2K2 | Resistors_SMD:R_0805 | R34, R35, R38, R39, R95 |
| 5 | R_POT | new_kicad:Potentiometer_Alps-RK09 | RV1, RV3, RV4, RV5, RV6 |
| 4 | 100R | Resistors_SMD:R_0805 | R64, R65, R66, R67 |
| 4 | 180R | Resistors_SMD:R_0805 | R2, R28, R70, R72 |
| 4 | 7K | Resistors_SMD:R_0805 | R55, R56, R59, R60 |
| 4 | TL071 | SMD_Packages:SOIC-8-N | U7, U8, U9, U16 |
| 3 | 22k | Resistors_SMD:R_0805 | R42, R43, R74 |
| 3 | 4051 | SMD_Packages:SO-16-N | U2, U6, U10 |
| 3 | LM13700 | SMD_Packages:SO-16-N | U5, U11, U17 |
| 3 | TL074 | SMD_Packages:SOIC-14_N | U1, U3, U12 |
| 2 | 10u | SMD_Packages:SMD-1206_Pol | C22, C23 |
| 2 | 1N5158 | Diodes_SMD:D_SOD-123 | D2, D3 |
| 2 | 4K7 | Resistors_SMD:R_0805 | R47, R63 |
| 1 | 100pF | Capacitors_SMD:C_0805 | C18 |
| 1 | 10k | Resistors_SMD:R_0805 | R73 |
| 1 | 12K | Resistors_SMD:R_0805 | R51 |
| 1 | 1N4148 | Diodes_SMD:D_SOD-123 | D1 |
| 1 | 330R | Resistors_SMD:R_0805 | R25 |
| 1 | 4024 | SMD_Packages:SOIC-14_N | U4 |
| 1 | 470K | Resistors_SMD:R_0805 | R46 |
| 1 | CONN_02X05 | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | P1 |
| 1 | Q_NPN_BEC | TO_SOT_Packages_SMD:SOT-23 | Q2 |
Questions
How big is the Filter PCB?
It measures 60.2 × 109.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Filter use?
176 parts, built around the LM13700M. 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 Filter KiCad files?
From the microresearch/allcolours repository on GitHub, at the commit this page was made from: the board is filter/filter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Filter 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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