2 layers222.1 × 128.5 mm
2 layers30 × 100.8 mm
- Size
- 30 × 100.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 26
- Pads
- 140
- Tracks, vias
- 227, 18
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 15 Nov 2022
- Updated
- 14 Dec 2022
Overview
LFO is an open-source printed circuit board by theWickedWebDev, from the theWickedWebDev/Modular-Synth repository on GitHub. It is a 2-layer board of 30 × 100.8 mm with 37 parts on 26 nets, routed with 227 tracks and 18 vias.
It is built around the TL072 and L7905. Its parts include 17 resistors, 4 capacitors, 4 ICs, 3 connectors and 1 transistor.
Main components
2README
00_BREAKOUTS/Breakout_DPDT/README.mdDPDT Push Button - Breakout Boards
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | R_Small_US | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17 +1 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad_Via | H1, H2, H3, H4 |
| 3 | AudioJack2_Ground | LIBRARY-8-bit-computer:3.5mm-mono-jack-eurorack-2 | J1, J2, J3 |
| 3 | R_Potentiometer_US | LIBRARY-8-bit-computer:alpha-9mm-potentiometer | RV1, RV2, RV3 |
| 2 | C_Polarized_Small_US | Capacitor_SMD:CP_Elec_4x5.4 | C3, C4 |
| 2 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U3 |
| 1 | 2n3904 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | C | Capacitor_THT:C_Disc_D5.1mm_W3.2mm_P5.00mm | C1 |
| 1 | C_Polarized_Small_US | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C2 |
| 1 | Eurorack_IDE_16P | LIBRARY-8-bit-computer:IDC-Socket-Eurorack_16p_2.54mm | U1 |
| 1 | L7905 | Package_TO_SOT_THT:TO-220-3_Vertical | U4 |
The 36 most common of 37 parts.
Questions
How big is the LFO PCB?
It measures 30 × 100.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LFO use?
37 parts, built around the TL072 and L7905. 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 LFO KiCad files?
From the theWickedWebDev/Modular-Synth repository on GitHub, at the commit this page was made from: the board is LFO-Low-Freq-Oscillator/LFO.kicad_pcb and its schematic 00_BREAKOUTS/Breakout-AudioJack/AudioJack-Breakout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LFO design in my own project?
Its repository states no licence, so its author keeps all rights: ask theWickedWebDev before reusing the design.
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