8550 Transistor to Audio Amplifier

Hii friend,

Today I am going to make an audio amplifier using transistor 8550.This is the easiest way to make audio amplifier.

Let's get started,

Step 1: Take All Components As Shown Below

(1.) Transistor - 8550 x1

(2.) Battery - 9V x1

(3.) aux cable x1

(4.) Capacitor - 25V 100uf x1

(5.) Battery clipper x1

(6.) Speaker x1 x1

(7.) Resistor - 1K x1

Step 2: Circuit Diagram

This picture shows the pinout of transistor 8550 and the circuit diagram of it's audio amplifier.

Step 3: Connect Resistor

Firstly we have to connect 1K resistor to the transistor.

Connect 1K resistor to emmiter and base of the transistor as shown in picture.

Step 4: Connect Capacitor

Next we have to connect capacitor.

Solder +ve pin of capacitor to base of transistor as you can see in the picture.

Step 5: Connect Aux Cable

Next connect aux cable wire.

Solder Left/Right (+ve) wire of aux cable to -ve of capacitor and

solder -ve wire of aux cable to collector pin of transistor as shown in the picture.

Step 6: Connect Speaker Wire

Solder -ve wire of speaker to collector pin of transistor.

Step 7: Connect Battery Clipper

Now we have to connect battery clipper wire to the circuit.

Solder +ve wire of battery clipper to +ve of speaker and

solder -ve wire of battery clipper to emmiter of transistor as you can see in the picture.

Step 8: HOW TO USE IT

Connect Battery to battery clipper and plug in aux cable to mobile phone and play songs.

It's volume can adjust by mobile phone.

Thank you