2 layers97.3 × 128.5 mm
2 layers70.8 × 100 mm
EuroClack Formant LFO main board
clacktronics/EuroClack_Formant_LFO4A copy of the Elektor Formant LFO modified for Eurorack
- Size
- 70.8 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 107
- Nets
- 82
- Pads
- 306
- Tracks, vias
- 852, 142
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Mar 2024
- Updated
- 28 Mar 2024
Overview
EuroClack Formant LFO main board is an open-source printed circuit board by clacktronics, from the clacktronics/EuroClack_Formant_LFO repository on GitHub. It is a 2-layer board of 70.8 × 100 mm with 107 parts on 82 nets, routed with 852 tracks and 142 vias.
It is built around the LM324 and BC847. Its parts include 51 resistors, 22 connectors, 17 capacitors, 8 diodes and 6 ICs.
Main components
2README
README.mdEuroClack Formant LFO clone
A copy of the Elektor Formant LFO modified for Eurorack
STILL WIP This text will be gone when it is tested and working
Parts
107| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100kΩ | Clacktronics:R_0603_1608Metric | R103, R104, R106, R108, R109, R203, R204, R206, R208, R209, R321, R322, R324, R330, R331 |
| 15 | 1μF | Clacktronics:C_0805_2012Metric | C1, C2, C3, C4, C5, C6, C7, C8, C9, C12, C13, C14, C101, C201, C302 |
| 9 | 10kΩ | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | P102, P103, P104, P202, P203, P204, P305, P306, P307 |
| 9 | 1kΩ | Clacktronics:R_0603_1608Metric | R107, R112, R113, R207, R212, R213, R328, R329, R334 |
| 6 | 470Ω | Clacktronics:R_0603_1608Metric | R111, R115, R211, R215, R333, R335 |
| 6 | 68kΩ | Clacktronics:R_0603_1608Metric | R101, R102, R201, R202, R319, R320 |
| 3 | 100K | Clacktronics:POT_TH_Alps_RK09K_Single_Vertical | P101, P201, P308 |
| 3 | 1N4148 | Diode_SMD:D_SOD-123 | D101, D202, D303 |
| 3 | 22kΩ | Clacktronics:R_0603_1608Metric | R114, R214, R318 |
| 3 | 3k9Ω | Clacktronics:R_0603_1608Metric | R110, R210, R332 |
| 3 | 47kΩ | Clacktronics:R_0603_1608Metric | R105, R205, R323 |
| 3 | 47Ω | Clacktronics:R_0603_1608Metric | R116, R216, R317 |
| 3 | BC847 | Package_TO_SOT_SMD:SOT-23 | T101, T201, T302 |
| 3 | LED | LED_THT:LED_D5.0mm | D102, D201, D304 |
| 3 | LM324 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | IC102, IC202, IC304 |
| 3 | LM741 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC101, IC201, IC303 |
| 3 | RISING_RAMP | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ366ST_Vertical | J101, J201, J302 |
| 3 | TRIANGLE | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ366ST_Vertical | J103, J203, J303 |
| 2 | 10kΩ | Clacktronics:R_0603_1608Metric | R325, R327 |
| 2 | C_Polarized | Capacitor_SMD:CP_Elec_4x3 | C10, C11 |
| 2 | D_Schottky | Diode_SMD:D_SMA | D1, D2 |
| 2 | SQUARE | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ366ST_Vertical | J102, J202 |
| 1 | 4k7Ω | Clacktronics:R_0603_1608Metric | R326 |
| 1 | Conn_02x05_Counter_Clockwise | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J10 |
| 1 | FALLING_RAMP | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ366ST_Vertical | J301 |
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Questions
How big is the EuroClack Formant LFO main board PCB?
It measures 70.8 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EuroClack Formant LFO main board use?
107 parts, built around the LM324 and BC847. 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 EuroClack Formant LFO main board KiCad files?
From the clacktronics/EuroClack_Formant_LFO repository on GitHub, at the commit this page was made from: the board is EuroClack_Formant_LFO_main_board/EuroClack_Formant_LFO_main_board.kicad_pcb and its schematic EuroClack_Formant_LFO_main_board/EuroClack_Formant_LFO_main_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EuroClack Formant LFO main board design in my own project?
Its repository states no licence, so its author keeps all rights: ask clacktronics before reusing the design.