Mod Synth LowPassFilter
carl-becker·fusion-core·Filter/Mod_Synth_LowPassFilter/Mod_Synth_LowPassFilter.kicad_pcb
About the Mod Synth LowPassFilter PCB
Mod Synth LowPassFilter is an open source PCB design by carl-becker, published on GitHub. It is a 2-layer board measuring 59.5 × 52.4 mm, with 36 components from 10 distinct parts.
Other key parts include the LM13700 and TL074. By type, the board carries 17 resistors, 6 capacitors, 2 ICs, 2 transistors and 1 connector.
It belongs with the audio designs in this gallery.
From the project
DIY analog modular synth
- Get to know delicious circuits (experimenting a lot) - Use them in crude ways to generate sounds - Learn how to design circuits & professionally manufacture them with KiCad - Learn whats possible with analog circuits and what's not - Have a lot of fun without the need of programming
- Get an overview of electronic parts out there - Manage a big project - Make ambient dub techno at the end lol

Main components on the Mod Synth LowPassFilter
Mod Synth LowPassFilter bill of materials (BOM)
36 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM13700 | DIP-16_W7.62mm_Socket_LongPads | U1 |
| 1 | TL074 | DIP-14_W7.62mm_Socket_LongPads | U2 |
| 2 | BC558 | TO-92_Inline | Q1, Q2 |
| 1 | Conn_02x08_Odd_Even | IDC-Header_2x08_P2.54mm_Vertical | J2 |
| 3 | Outer | SolderWire-0.15sqmm_1x01_D0.5mm_OD1.5mm | CV_InputJack2, InputJack2, OutputJack2 |
| 3 | R_Potentiometer | Potentiometer_Bourns_3386C_Horizontal | CV_Lvl_100k_Lin1, Cutoff_4,7k_Lin1, Res_100k_Lin1 |
| 1 | LED1 | SolderWire-0.15sqmm_1x01_D0.5mm_OD1.5mm | LEDOutput1 |
| 1 | LED2 | SolderWire-0.15sqmm_1x01_D0.5mm_OD1.5mm | LEDOutput2 |
| 6 | C | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1nF1, C1nF2, C4,7nF1, C100nF1, C100nF2, C470nF1 |
| 17 | R | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1k8_1, R1k8_2, R4k7_1, R10k1, R10k2, R10k3, R10k4, R10k5 +9 |
Mod Synth LowPassFilter design files
The KiCad project lives in the carl-becker/fusion-core repository on GitHub; these links point at the commit this page was built from.
Mod Synth LowPassFilter: common questions
How big is the Mod Synth LowPassFilter PCB?
The Mod Synth LowPassFilter measures 59.5 × 52.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mod Synth LowPassFilter?
36 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mod Synth LowPassFilter design files?
From the carl-becker/fusion-core repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mod Synth LowPassFilter design in my own project?
The repository has no license, so all rights stay with carl-becker. Use it as a reference, and ask the author before reusing the design.
More boards in fusion-core
VCO
carl-becker
100 × 100 mm108 parts2LNo license0MS20 FIlter Module
carl-becker
80 × 57.5 mm57 parts2LNo license0Audio Output
carl-becker
80 × 57.5 mm57 parts2LNo license0PSU
carl-becker
350 × 50 mm45 parts2LNo license0Math-Module
carl-becker
60 × 60 mm40 parts2LNo license0Mix-Lite-Module
carl-becker
60 × 55 mm33 parts2LNo license0
Similar boards
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2kButtonsLEDs
shanteacontrols
390 × 37 mm82 parts2LApache-2.0956USB
shanteacontrols
52 × 12.6 mm6 parts2LApache-2.0956Pots
shanteacontrols
390 × 93 mm75 parts2LApache-2.0956PicoGUS Hand386
polpo
29.2 × 75.2 mm43 parts4LGPL-2.0800Snark barker
schlae
231.1 × 106.7 mm193 parts2LNo license687