LED Audio Level VU Meter Using Transistors
![LED Audio Level VU Meter Using Transistors](https://www.circuits-diy.com/wp-content/uploads/2020/12/LED-Audio-Level-VU-Meter-Using-Transistors.jpg)
A volume unit (VU) meter is a device displaying a representation of the signal level in audio equipment. They are used in telephone
![](https://i.ytimg.com/vi/xQkiZ6Aaxzo/sddefault.jpg)
Audio Level VU Meter By LM3915 IC
![](https://i.etsystatic.com/14196691/r/il/673d4b/2662362730/il_fullxfull.2662362730_ffis.jpg)
LED VU Meter Sound Meter Level Indicator Microphone Preamplifier HK1523
![](https://www.eleccircuit.com/wp-content/uploads/2013/08/pcb-layout-and-components-layout-of-the-20-led-cheap-vu-meter-transistor-247x300.jpg)
LED VU Meter circuits using transistors, 5 to 20, 40 LED
![](https://www.circuits-diy.com/wp-content/uploads/2020/11/audio-level-meter-2n3904-transistors.jpg)
Audio Level Meter Using 2n3904 Transistors - DIY Projects
![](https://electronicsarea.com/wp-content/uploads/audio-level-indicator-lm339-vu-meter.png)
Audio Level Indicator Circuit Diagram using LM339 - Electronics Area
![](https://wiredworld.tripod.com/tronics/audio_level_ckt.png)
Audio Level Meter
![](https://i0.wp.com/bestengineeringprojects.com/wp-content/uploads/2017/04/sound-level-meter-circuit.jpg?fit=1200%2C401&ssl=1)
Sound Level Meter Circuit - Engineering Projects
![](https://circuitdigest.com/sites/default/files/circuitdiagram/Circuit-Diagram-for-LED-VU-Meter.jpg)
Simple Audio Level Indicator using LM3915
![](https://www.homemade-circuits.com/wp-content/uploads/2012/03/simplevumetercircuitdiagram-1.png)
4 Simple VU Meter Circuits Explained - Homemade Circuit Projects
![](http://www.hobby-circuits.com/files/517/vu-meter-1_orig.gif)
VU Meter 1 circuit diagram and instructions
![](https://i.etsystatic.com/14196691/r/il/e718a5/3274964347/il_fullxfull.3274964347_93h6.jpg)
LED VU Meter Sound Meter Level Indicator Microphone Preamplifier HK1523
![](https://www.eleccircuit.com/wp-content/uploads/2012/11/LM3914-Dot_Bar-Display-Driver-_-VU-Meter-Circuits.png)
LM3914 Datasheet Dot/Bar Display Driver, VU Meter Circuits