2 layers167.1 × 363.5 mm
2 layers71 × 108 mm
Oscillator
gridbugs/modular2- Size
- 71 × 108 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 53
- Nets
- 44
- Pads
- 141
- Tracks, vias
- 263, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Nov 2025
- Updated
- 7 Nov 2026
Overview
Oscillator is an open-source printed circuit board by gridbugs, from the gridbugs/modular2 repository on GitHub, published under the MIT licence. It is a 2-layer board of 71 × 108 mm with 53 parts on 44 nets, routed with 263 tracks and 0 vias.
Its parts include 20 resistors, 13 connectors, 8 capacitors, 4 fuses and 2 ICs.
README
low-pass-filter/README.mdLow-pass Filter
Quirks
V1
- The "Cutoff" potentiometer is reversed.
Parts
53| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6, R8, R9, R15 |
| 5 | 100nf | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C4, C5, C6, C7, C8 |
| 4 | foot | modular2:foot | F1, F2, F3, F4 |
| 3 | 100K | modular2:pot-socket | RV2, RV3, RV4 |
| 3 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R14, R17, R20 |
| 3 | Conn_01x03_Socket | modular2:pot | J8, J9, J10 |
| 3 | Power | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J1, J2, J11 |
| 2 | 24K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R16 |
| 2 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10, R13 |
| 1 | 1.5M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12 |
| 1 | 1.8K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 1 | 10K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 10nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1 |
| 1 | 13K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18 |
| 1 | 20K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R19 |
| 1 | 4.7nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C2 |
| 1 | 470K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 470nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3 |
| 1 | 5.6K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 51K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 620 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | AS3340-custom | Package_DIP:DIP-16_W7.62mm_Socket | U1 |
| 1 | Frequency CV Input | modular2:banana-jack | J6 |
| 1 | Hard Sync | modular2:banana-jack | J13 |
| 1 | LFO Switch | modular2:switch1 | SW1 |
| 1 | LOGO | modular2:ibis-small | G*** |
| 1 | PWM CV Input | modular2:banana-jack | J7 |
| 1 | Pulse Output | modular2:banana-jack | J5 |
| 1 | Saw Output | modular2:banana-jack | J4 |
| 1 | Soft Sync | modular2:banana-jack | J12 |
| 1 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket | U2 |
| 1 | Triangle Output | modular2:banana-jack | J3 |
Questions
How big is the Oscillator PCB?
It measures 71 × 108 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Oscillator use?
53 parts. 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 Oscillator KiCad files?
From the gridbugs/modular2 repository on GitHub, at the commit this page was made from: the board is oscillator/oscillator.kicad_pcb and its schematic arduino-delay/arduino-delay.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Oscillator design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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