Introduction: 9 LED VU Meter Runs From 12v

This is a 9 LED vu meter which runs on 12v .its very simple and effective it works with any audio source. I have already built and tested this circuit it works fine. i designed this circuit for my friend he requested me to build 1 which should run from 12v power supply. All resistor's are quarter watt . The power supply should be 12v and input from audio system is shown in the circuit just hook it up and have fun. If you face any problem with this circuit than please communicate with me at- bishwa.baran.das@gmail.com and one last thing if you like this circuit than please le me know.

Parts list:-

IN4I48 X     9
BC557 X    1
BC547 X    9
470R    X    1
330R    X    9
4.7 K     X    3
10K       X    2
33K       X    2
39K       X    2
47K       X    2
4.7UF 25V    X 2
100K POT    X 1
LED 5MM X 9 ( ANY COLOR)

Comments

author
BenjimanD (author)2016-11-12

i have made it but is it running on 12vac or 12vdc

author
victordas (author)BenjimanD2016-11-21

12v DC

author
grateed (author)2013-08-10

hi good work i like your circuit i want to build one

author
victordas (author)grateed2013-08-11

10q "grateed" .......

About This Instructable

5,726views

7favorites

License:

Bio: m mad about electronics, technology........who m i ??? son just don ask that .......
More by victordas:Simple 5v battery backup circuitLM3914 based LED VU METER by Victor DasBlown Fuse Indicator Circuit with Led
Add instructable to: