2 layers65 × 128.5 mm
MiniOSC
benjiaomodular/MiniOSC
A schmitt-trigger inverter based sawtooth and pulse oscillator module
82 parts36CC-BY-SA-4.0
2 layers65 × 128.5 mm
MiniOSC
benjiaomodular/MiniOSC36A schmitt-trigger inverter based sawtooth and pulse oscillator module
- Size
- 65 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 58
- Pads
- 217
- Tracks, vias
- 455, 108
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 8 Nov 2021
- Updated
- 29 Oct 2024
Overview
MiniOSC is an open-source printed circuit board by benjiaomodular, from the benjiaomodular/MiniOSC repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 65 × 128.5 mm with 82 parts on 58 nets, routed with 455 tracks and 108 vias.
It is built around the 1N4148W, BC848 and BC858. Its parts include 24 resistors, 10 capacitors, 8 connectors, 4 diodes and 3 ICs.
Main components
3README
README.mdMiniOSC
Schematics
Version 2.1
More info on my website:
PCBs
This project was sponsored by PCBWay. You can order the boards from them directly!
You can also download my files from https://github.com/benjiaomodular/MiniOSC/blob/main/fabrication/
Old versions
Version 1.1
More info on my website: https://benjiaomodular.com/post/2021-12-03-volt-per-octave-40106-vco/
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R4, R7, R10, R11, R16, R22 |
| 6 | TestPoint | Connector_Wire:SolderWirePad_1x01_SMD_1x2mm | TP1, TP2, TP3, TP4, TP5, TP6 |
| 5 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4, C5, C6, C7 |
| 4 | 10K NTC | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | TH1, TH2, TH3, TH4 |
| 4 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D3, D4 |
| 4 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R17, R19, R23 |
| 4 | B100k | benjiaomodular:Potentiometer_RV09 | PULSE_WIDTH1, PWM_AMT1, TUNING_COARSE1, TUNING_FINE1 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R13, R15 |
| 3 | 20k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R18, R21 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R6 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 22uF | Capacitor_SMD:CP_Elec_4x5.8 | C9, C10 |
| 2 | 68k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14, R24 |
| 2 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2, U3 |
| 1 | 1K5 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 2.2nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8 |
| 1 | 200k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R20 |
| 1 | 40106 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | B1k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | SCALE1 |
| 1 | BC848 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | BC858 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | BIM | benjiaomodular:Potentiometer_RV09 | FM_AMT1 |
| 1 | Conn_01x10_Pin | benjiaomodular:Header_IDC2x05_NoArrow | J2 |
| 1 | FM_IN | benjiaomodular:AudioJack_3.5mm | J10 |
| 1 | LOGO | LOGO | G*** |
| 1 | PULSE_OUT | benjiaomodular:AudioJack_3.5mm | J14 |
| 1 | PWM_CV | benjiaomodular:AudioJack_3.5mm | J11 |
| 1 | SAW_OUT | benjiaomodular:AudioJack_3.5mm | J13 |
| 1 | SW_DPDT_x2 | benjiaomodular:Button_KFC7x7 | SW1 |
| 1 | SYNC_IN | benjiaomodular:AudioJack_3.5mm | J1 |
| 1 | TRI_OUT | benjiaomodular:AudioJack_3.5mm | J12 |
| 1 | VOCT_IN | benjiaomodular:AudioJack_3.5mm | J9 |
The 69 most common of 82 parts.
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Questions
How big is the MiniOSC PCB?
It measures 65 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MiniOSC use?
82 parts, built around the 1N4148W, BC848 and BC858. 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 MiniOSC KiCad files?
From the benjiaomodular/MiniOSC repository on GitHub, at the commit this page was made from: the board is hardware/kicad/MiniOSC/MiniOSC.kicad_pcb and its schematic hardware/kicad/MiniOSC/MiniOSC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MiniOSC design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).