MiniLFO
About the MiniLFO PCB
MiniLFO is an open source PCB design by benjiaomodular, published on GitHub under the MIT license. It is a 2-layer board measuring 10 × 128.5 mm, with 21 components from 15 distinct parts.
Other key parts include the TL074ACDT. By type, the board carries 8 resistors, 6 capacitors, 1 IC, 1 connector and 1 diode.
It belongs with the audio designs in this gallery.
From the project
A super simple 2HP triangle wave LFO for Eurorack modular synth. This is roughly based on David Haillant's Simple LFO.
A super simple 2HP triangle wave LFO for Eurorack modular synth. This is roughly based on David Haillant's Simple LFO.
More info on my website: https://benjiaomodular.com/posts/minilfo
Main components on the MiniLFO
MiniLFO bill of materials (BOM)
21 components, 15 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL074ACDT TL074 | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | X9555WV-2X05-6TV01 IDC_2x05 | IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 2 | RV09AF-40-20K-B100K B100k | Potentiometer_RV09 | RANGE1, TIME1 |
| 1 | MTS-102 SPDT | ToggleSwitch_MTS-102_SPDT | RANGE_SW1 |
| 1 | PJ-3001F | AudioJack_3.5mm | TRI_OUT1 |
| 1 | 3ARG4HWC LED_Dual_Bidirectional | LED_D3.0mm | D1 |
| 1 | ECE-A1VN100UB 10uF | Capacitor_Radial_D5.0mm_P2.5mm | C1 |
| 1 | MMK5103K50J01L4BULK 10nF | Capacitor_Rect_L7.2mm_W2.5mm_P5.00mm | C2 |
| 2 | CC0805KRX7R9BB104 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C6 |
| 2 | R82EC3100DQ70K 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C5 |
| 1 | RC0603FR-7W470RL 470 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 3 | RC0603FR-07100KL 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R4 |
| 1 | RC0603FR-074K7L 4.7k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | AC0603FR-0710KL 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 2 | RC0603FR-071KL 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R8 |
MiniLFO design files
The KiCad project lives in the benjiaomodular/MiniLFO repository on GitHub; these links point at the commit this page was built from.
MiniLFO: common questions
How big is the MiniLFO PCB?
The MiniLFO measures 10 × 128.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MiniLFO?
21 components, from 15 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the MiniLFO design files?
From the benjiaomodular/MiniLFO repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the MiniLFO design in my own project?
Yes, under the terms of its MIT license, which benjiaomodular chose for the repository.
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