My Blog Stat

My blog’s growth history is inspiring. Till now there are 3,58,888 visitors all over the world.

I am sharing the Stat  to my readers. This is the data of the months from  Feb.2012 to Sept 2012

Continue reading “My Blog Stat”

Mobile phone Amplifier. Design Trick 7

You can use this Mini amplifier to hear music from Mobile phone or Laptop. The speaker of Mobile phone and Laptop is too small and the output voice is sharp with high tone which is not pleasant to hear music for long time. This circuit will solve the problem. It can be connected to the earphone socket of Mobile phone or Laptop. It is too small and portable. IC LM386 is used in the circuit which is  a low voltage audio amplifier IC and its gain is internally set to 20.
Continue reading “Mobile phone Amplifier. Design Trick 7”