Sunday, November 2, 2014
AUDIO LEVEL METER ELECTRONIC DIAGRAM
AUDIO LEVEL METER ELECTRONIC DIAGRAM
It consists of only few components. IC LM3915 converts the audio analog voltage and display it to the LED. Here is the schematic :
Parts list :
- Resistor R1 : 1k2
- Resistor variable R2 : 10k
- IC : LM3915
- LED indicator LED1-LED10 : LED 5mm
- 12V power supply
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