

Basic VCA
these are some pcbs :~)
- Size
- 45 × 46 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 22
- Pads
- 72
- Tracks, vias
- 125, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 14 Dec 2020
- Updated
- 13 Jun 2022
Overview
Basic VCA is an open-source printed circuit board by masonandrewmann, from the masonandrewmann/modular-synth-pcbs repository on GitHub. It is a 2-layer board of 45 × 46 mm with 35 parts on 22 nets, routed with 125 tracks and 0 vias.
It is built around the TL072. Its parts include 16 resistors, 8 connectors, 3 capacitors, 3 transistors and 1 IC.
Main components
1README
README.mdA collection of PCBs I've designed since getting into DIY modular synths. Do not assume that any of these designs work or are good, many of them have errors I have not fixed yet. If you want to get some manufactured, go ahead but I'd urge you to contact me first and I can let you know any quirks of the board first! :~)
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4, R13, R14, R15, R16 |
| 3 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.0mm_Bigger_Holes | C1, C4, C5 |
| 3 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1, Q2, Q3 |
| 2 | 15k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8, R12 |
| 2 | 22k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R9 |
| 2 | 30k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R11 |
| 2 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 1 | +12V_Conn | Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm | J5 |
| 1 | -12V_Conn | Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm | J7 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 5k6 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | CV1 | Connector_Wire:SolderWirePad_1x01_Drill1mm | J1 |
| 1 | CV2 | Connector_Wire:SolderWirePad_1x01_Drill1mm | J2 |
| 1 | GND_Conn | Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm | J6 |
| 1 | In | Connector_Wire:SolderWirePad_1x01_Drill1mm | J3 |
| 1 | Init_LVL | Connector_Wire:SolderWirePad_1x01_Drill1mm | J8 |
| 1 | Out | Connector_Wire:SolderWirePad_1x01_Drill1mm | J4 |
| 1 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket | U1 |
The 32 most common of 35 parts.
Questions
How big is the Basic VCA PCB?
It measures 45 × 46 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Basic VCA use?
35 parts, built around the TL072. 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 Basic VCA KiCad files?
From the masonandrewmann/modular-synth-pcbs repository on GitHub, at the commit this page was made from: the board is My Stuff/Basic VCA/Basic VCA.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Basic VCA design in my own project?
Its repository states no licence, so its author keeps all rights: ask masonandrewmann before reusing the design.
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