Stereo VU Meter


Posted on Jun 3, 2012

This is it. It`s a STEREO LED LEVEL METER. It`s the cheapest and best bar graph display available and best of all, it uses readily available components. You only need a handful of LEDs, 22 transistors, some resistors, diodes and a set of electros - it doesn`t require any chips.


Stereo VU Meter
Click here to download the full size of the above Circuit.

You may be wondering why we didn`t choose the LM 3914 or LM 3915 bar-graph LED driver chips. The reason is simple. We learnt our lesson from our Mini Frequency Counter Book. In it we used a relatively novel chip, the CD 4026. And after releasing 10,0




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Lamp Flasher
Switching-power-supply
Stereo Preamp With Tone Control Circuit
LED (IR LED1) and the phototransistor (T1) and wireless light switch
Semiconductors Lessons In Electric Circuits
25W HiFi Audio Amplifier with MOSFET
XR2212 PLL FM demodulator Circuit
Si3210 Si3211 Si3212 Hardware Reference Guide
VCR Robot
One infrared burglar alarm circuit
Variety of signal generator circuit
Structure and working principles of various protective circuit diagram e



Top