2 layers64 × 128.5 mm
MiniVCA 1.0
benjiaomodular/MiniVCA
A small footprint LM13700 VCA module for Eurorack modular synth
42 parts31MIT
2 layers118 × 128.5 mm
MS20-VCF
BleepSound/ms20-vcf-simple8MS20 style VCF
- Size
- 118 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 45
- Pads
- 162
- Tracks, vias
- 246, 15
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Dec 2022
- Updated
- 27 Nov 2025
Overview
MS20-VCF is an open-source printed circuit board by BleepSound, from the BleepSound/ms20-vcf-simple repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 118 × 128.5 mm with 59 parts on 45 nets, routed with 246 tracks and 15 vias.
It is built around the LM13700M, TL072 and BC559. Its parts include 22 resistors, 10 capacitors, 7 diodes, 4 connectors and 2 ICs.
Main components
3
LM13700M
SOIC-16-16V~-4.75V、4.75V~16V 0℃~+70℃ 110dB 2 2.6mA 20mA 400nA 4mV 50V/us 600nA 9.5V~32V SOIC-16 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
BC559
TO-92-31 PNP 100mA 110 150MHz 15nA 30V 500mW 5V 650mV PNP Standalone TO-92-3 Bipolar (BJT) ROHSonsemiBipolar (BJT)
README
README.mdParts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R6, R7, R11, R15, R16 |
| 6 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D2, D3, D4, D5, D6, D7 |
| 4 | 100nF | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C7, C8, C9, C10 |
| 4 | 2.2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5, R9, R20 |
| 4 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R3, R12, R13 |
| 4 | MountingHole_Pad | Synth:Doepfer Mounting hole | H1, H2, H3, H4 |
| 3 | 100k | Synth:Pot-bourns-alpha | CUTCV1, CUTOFF1, Res1 |
| 3 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C3, C6 |
| 3 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R21, R22 |
| 3 | 1nF | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C4, C5 |
| 2 | 1.8k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10, R19 |
| 2 | 10R | Inductor_THT:L_Axial_L9.5mm_D4.0mm_P12.70mm_Horizontal_Fastron_SMCC | FB1, FB2 |
| 2 | 10k | Potentiometer_THT:Potentiometer_Bourns_3386C_Horizontal | ResLv1, ResVol1 |
| 2 | BC559 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1, Q2 |
| 1 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R17 |
| 1 | 56k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18 |
| 1 | 82k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R14 |
| 1 | FilterCV1 | Synth:Thonkiconn | J6 |
| 1 | FilterIn1 | Synth:Thonkiconn | J7 |
| 1 | FilterOut1 | Synth:Thonkiconn | J8 |
| 1 | Hpass/Lpass Switch | Synth:SW_DPDT_Toggle | SW1 |
| 1 | LED-12V | LED_THT:LED_D4.0mm | D1 |
| 1 | LM13700 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | Power Input | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J5 |
| 1 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket | U2 |
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Questions
How big is the MS20-VCF PCB?
It measures 118 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MS20-VCF use?
59 parts, built around the LM13700M, TL072 and BC559. 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 MS20-VCF KiCad files?
From the BleepSound/ms20-vcf-simple repository on GitHub, at the commit this page was made from: the board is kicad-global/MS20-VCF.kicad_pcb and its schematic kicad-global/MS20-VCF.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MS20-VCF design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).