12 led vu meter circuit

Posted on Feb 6, 2014

This is a simple visual indication of the audio level signals, adaptive to various user needs. Can be adapted to different input levels, adjustable by trimmer TR1 (state) - TR2 (Gain), then rectified by diodes D1-D2 (standard negative mark-recovery periods) and driven in the main circuit indication, consisting of

12 led vu meter circuit
Click here to download the full size of the above Circuit.

the diodes D3 up to D13, transistors Q2-Q13 and materials that exist around them. The visual indicator is taken from the series of diodes LED LD1-13. Each Led illuminates when the level changed during about 0, 65 V. The power requirements are 100 ma full term. We can add as many steps we want LED, always assuming the power where you need the new LED.

Leave Comment

characters left:

New Circuits



Popular Circuits

50 Watt power Amplifier
dual power supply circuit
Test-Measurement 4
Pulse width / voltage conversion circuit composed of TL082
Suitable for pager unit cell MAX1678 high-efficiency step-up power supply configuration