Wandy Amaury
DOMINICAN REPUBLIC • + Follow
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Description
Vu-meter single channel
Vu-meter single channel using LM324 OpAmps.
This project is ideal for electronic students who are starting engineering, The project shows how a transistor works as an audio amplifier, how to handle DC noises in the audio signal, and how to use Operational Amplifiers as voltage comparators to make this VU-meter.
The power supply for this circuit can be from 5 to 10 Volt DC through J1 (A 9V battery is ideal for this project), the audio gain can be tuned by the potentiometer RV2, and the audio-sensitive can be tuned by changing the value of the potentiometer RV1.
Sample video:
Schematic and Layout
Kicad Project
Vumeter-single-channel.7z
May 26,2024
1,149 views
Vu-meter single channel
2 Layers PCB 35 x 61 mm FR-4, 1.6 mm, 1, HASL with lead, Black Solder Mask, White silkscreen
Vu-meter single channel using LM324 OpAmps
1149
4
2
Published: May 26,2024
Standard PCB
Download Gerber file 13
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