How to make your own homemade amplifier by using LM386

                        PORTABLE SPEAKER

uuhhmm....an amplifier,i think is quite interesting while making an amplifier which gives us maximum output.

so why not we all should make it by our own :)

Speakers can be a better and awesome option to listen together. But the problem comes when you have to carry those large, bulky speakers in your suitcase or backpack which should not be a good idea. They are expensive and need to be plugged to an external power supply which is not available everywhere. Portable speakers can be a better option but they are too expensive and some of them do not have that loud and clear sound. Why don't make your own portable- battery operated and solar powered speakers that has sound much louder and better quality than normal portable speakers? This post will guide you the same thing.

So i will show you all the steps that required to make an amplifierby using LM386.

SO LET'S GET STARTED.......................

First of all you all must know about the IC which we are going to use for making the amplifier.

LM386 is a low voltage audio amplifier and frequently used in battery powered music devices like radios, guitars, toys etc. The gain range is 20 to 200, gain is internally set to 20 (without using external component) but can be increased to 200 by using resistor and capacitor between PIN 1 and 8, or just with a capacitor. Voltage gain simply means that Voltage out is 200 times the Voltage IN. LM386 has a wide supply voltage range 4-12v. Below is the Pin diagram of LM386.

3.5mm audio jack.

Parts:

1. 1xLM386
2. 1x10k pot
3. 1x220 or 250uf capacitor
4. 0.05uf capacitor
5. 1x10uf capacitor
6. 1x10ohm resistor
7. 1x3.5mm jack
8. speaker (4 to 16ohm)

Circuit Diagram:

The input is given to the audio jack wire.

The 10k pot is used to control the volmume.

NOTE: Do not increase the value of capacitor more than 10uf which is connected between 1 and 8

Finally this brings this post to an end. Enjoy the sound of your own do it yourself speakers while traveling or camping. Use it to watch movies on your laptop or your mobile at night with high quality and loud sound.

If you have any doubt related to this project or found an error, feel free to comment or ask a question. Do post your pictures if you've made one yourself or did some modifications.

So that's it for today,hope you all like it.

Stay tuned for my next post.

Thankyou very much:)

good bye take care :)