4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers63.5 × 31.8 mm
VUmeter
eparadis/VUmeterVU meter driving circuit and pcb
- Size
- 63.5 × 31.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 13
- Pads
- 49
- Tracks, vias
- 56, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 2 Aug 2021
- Updated
- 2 Aug 2021
Overview
VUmeter is an open-source printed circuit board by eparadis, from the eparadis/VUmeter repository on GitHub. It is a 2-layer board of 63.5 × 31.8 mm with 20 parts on 13 nets, routed with 56 tracks and 0 vias.
It is built around the TL082. Its parts include 7 resistors, 4 capacitors, 4 diodes, 3 connectors and 1 IC.
Main components
1README
README.mdVU meter driving circuit
This circuit is designed to drive a ~500uA meter.
It is inspired by and largely based off the ideas here.
It is setup for a single-sided supply of my own devising, as when I had originally written this up in my notebook, I did not include the original author's single-sided design. Since I was using a single meter but a dual opamp, I had an extra opamp to create a reference voltage. The original author envisioned using each of the opamps as half a stereo pair.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 4 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4 |
| 3 | 100u | Capacitor_THT:CP_Radial_D8.0mm_P2.50mm | C1, C3, C4 |
| 2 | 150 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6, R7 |
| 1 | 20k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV1 |
| 1 | 220p | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C2 |
| 1 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 500u meter | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Input | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Pwr | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | TL082 | Package_DIP:DIP-8_W7.62mm_LongPads | U1 |
Questions
How big is the VUmeter PCB?
It measures 63.5 × 31.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the VUmeter use?
20 parts, built around the TL082. 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 VUmeter KiCad files?
From the eparadis/VUmeter repository on GitHub, at the commit this page was made from: the board is VUmeter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the VUmeter design in my own project?
Its repository states no licence, so its author keeps all rights: ask eparadis before reusing the design.
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