Today I am going to make an audio amplifier.In this amplifier we will use LM386 IC.This IC amplifier sound is very good.
Let's get started
Step 1: Take All Components As Shown in the List and Picture
Components required -
(1.) Resistor - 1K x1
(2.) IC - LM386 x1
(3.) Speaker x1
(4.) aux cable x1
(5.) Battery with connector - 9V x1
(6.) Capacitor - 25V 10uf x1
(7.) Capacitor - 25V 220uf x2
(8.) 0-pcb x1
Step 2: Cut Pcb
Cut pcb in the size of 1.5x1.5 inch.
Step 3: Connect Components
Now connect all components with IC on pcb and solder it according to the circuit diagram.
Step 4: After Adding Components
after adding all components on the pcb it will look like the given picture.
Step 5: Connect Speaker
Next Connect speaker to the pcb according to circuit diagram.
Step 6: Now Connect Aux Cable
Now solder aux cable to the pcb according to circuit diagram.
Step 7: Solder Battery Wire
Last step is to solder the battery wire to the circuit.
we can give 9V DC power supply to this circuit.
Step 8: Amplifier Is Ready
Now amplifier is ready to play.
Connect aux cable to the phone,laptop,tab,.......and play the songs.
Enjoy with full volume.
NOTE:If you want add a switch then add a switch between the wire of battery.
This type you can make LM386 IC to amplifier.