Hey guy's , In this blog i am gonna show you how to make simple and cheap single channel audio amp in just few step's :-

here's a previous priview:-

i will show you how to build an Audio amplifier based on LM386 IC. The circuit is very simple and construction is easy on a breadboard. The LM386 IC is unique in that the gain can be modified by changing Resistor R2 and Capacitor C2. This configuration will give us a gain of 20. By removing R2 and connecting C2 across pins 1 and 8, we can increase the gain to 200. It is important to understand that increasing the gain does not increase the output power. The increased gain is only used when a very low input signal is to be amplified. In a previous article I discussed building audio amplifiers using discrete transistors. While it is possible to build good audio amplifiers from discrete transistors, they are no match for the many audio amp IC's available to us. IC's offer many advantages including high efficiency, high gain, low standby current, low component count, small size and ,of course, low cost. It is little wonder that audio amp IC's have replaced discrete transistors in most consumer electronic devices. While many experimenters have stayed away from these little black mysteries, I am going to uncover some of their secrets and demonstrate how easy they are to use.

The Lm386 milti purpose amp, can be used with audio devices, guitars etc :

WARNING -
do not connect to above 12v dc supply but use less ampere rating if you are using 12v or i will preffer you to use an 9v dc battery or a regulated dc power source for it , the lm386  may blow up  if you excede the voltage source  !!!

step1:-

Gather these part's from your near electronic market or shop!!!!
parts for this circuit:-

1. LM386 IC
2. 10K POT
3. 220uF CAP
4. 10uF CAP
5. 100uF CAP
6. 0.047uF CAP
7. AUDIO MALE FEMALE JACKS AS PER REQUIREMENT !!
8. AUDIO CABLE
9. genera pcb or bread board which you like more it's your choice!!!

step2:-

this is the circuit for the amplifier:-

 I've arranged the speakers from a old amp which has broken and also it was old to

1. They are loud enough but after a certain amount of amplification they start to distort.
2. it would be better if you use bigger and more powerful speaker but should not exceed the power rating max 2w speakers

           MAKE IT LOVE IT HAVE FUN GUY'S

friend's i hope you like this project and if you have any query related to this project so feel free to ask question , you can comment or if you shy to comment   so mail me  <<*_*>>


************_______THANK U GUY'S FOR WATCHING MY Blog_______***********

                
Hey, guys in this blog i am gonna show you " HOW TO MAKE A SIMPLE  STATIC  ELETRICITY DETECTOR "

But first read this that what is static electricity and what is normal electricity!!
for your clearance!!!!

        *___Now you know what is static electricity so lets start the project____*

                 Here's a preview how it look

 

      BY using following parts :-

       ~ 3 NPN transistors ( bc547 )
       ~ 3 Resistors ( 1m , 100k , 220 ohm )
       ~ one led ( red )
       ~ a piece of copper plate as a detector
       ~ a voltage source ( 6 volt to 5 volt )
       ~ use a small piece of thermacoal sheet on the copper plate to make it
           more efficient because it will help to catch the charge quickly~~~!!!!

    

   HERE's the complete circuit for the detector

 

THIS SIMPLE CIRCUIT TO DETECT STATIC ELECTRICITY IN  THE SURROUNDING ANYWHERE ANY TIME AND ALSO USED AS A WIRELESS MAIN CABLE TESTER BECAUSE OF THE PRESENCE OF MAGNETIC FIELD CREATED BY CURRENT FLOWING IN THE MAINS CABLE


       This circuit is so sensitive it will detect "mains hum." 
       Simply move it across any wall and it will detect where the
       mains cable is located. It has a gain of about 200 x 200 x 200 = 8,000,000
       and will also detect static electricity and the presence
       of your hand without any direct contact.
       You will be amazed what it detects! 
       There is static electricity EVERYWHERE!
       The input of this circuit is classified as very high impedance.


PLACES where you can found the static electricity!!!

~ near to any mains cable or any plug top
~ if you have a cat so rub her fur it will create a static charge
~ if you have a crt tv take this detector to near the screen also there is static charge is present

friend's i hope you like this project and if you have any query related to this project so feel free to ask question , you can comment or if you shy to comment   so mail me  >>*_*<<


************_______THANK U GUY'S FOR WATCHING MY Blog_______***********