2 layers268.6 × 134.5 mm
2 layers79.5 × 128.5 mm
Simple lfo
jehoz/modular-synth- Size
- 79.5 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 36
- Pads
- 122
- Tracks, vias
- 163, 30
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Nov 2025
- Updated
- 25 Oct 2026
Overview
Simple lfo is an open-source printed circuit board by jehoz, from the jehoz/modular-synth repository on GitHub. It is a 2-layer board of 79.5 × 128.5 mm with 43 parts on 36 nets, routed with 163 tracks and 30 vias.
Its parts include 12 resistors, 12 connectors, 8 capacitors, 3 diodes and 2 switches.
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | To J3 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J1, J4, J6, J8, J11 |
| 4 | 0.1uF | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C5, C6, C7, C8 |
| 4 | To J4 (Range Switch) | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3, J5, J7, J10 |
| 3 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3, R4 |
| 3 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6, R7, R8 |
| 3 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R9, R10 |
| 2 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11, R12 |
| 2 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D2, D3 |
| 2 | 47uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3, C4 |
| 2 | B100K | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV1, RV2 |
| 1 | 10n | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C1 |
| 1 | 1u | Capacitor_THT:C_Rect_L7.0mm_W6.0mm_P5.00mm | C2 |
| 1 | 4K7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | LFO Out | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J9 |
| 1 | Power Connector | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J12 |
| 1 | Range | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW1 |
| 1 | Status | LED_THT:LED_D3.0mm | D1 |
| 1 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket | U1 |
| 1 | Waveform | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW2 |
The 40 most common of 43 parts.
Questions
How big is the Simple lfo PCB?
It measures 79.5 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Simple lfo use?
43 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 Simple lfo KiCad files?
From the jehoz/modular-synth repository on GitHub, at the commit this page was made from: the board is simple_lfo/simple_lfo.kicad_pcb and its schematic 2164_vca/2164_vca.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Simple lfo design in my own project?
Its repository states no licence, so its author keeps all rights: ask jehoz before reusing the design.
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