Hii friend,

Today I am going to make an audio amplifier using 3055 Metal Transistor.

Let's get started,

Step 1: Take All Componenets As Shown Below

Components required -

(1.) Transistor - 3055 x1 (Metal Transistor)

(2.) Capacitor - 25V 100uf x1

(3.) Resistor - 1K x1

(4.) Aux cable

(5.) Battery - 9V

(6.) Speaker

(7.) Battery clipper

Step 2: Transistor - 3055

This picture shows the pinouts of metal transistor 3055.

Solder 1K Resistor between Base and collector of the Transistor as solder in the picture.

Next we have to solder +ve pin of capacitor to Base pin of transistor as you can see in the picture.

Next Solder Left/Right wire of aux cable to -ve pin of capacitor and

Solder GND wire of aux cable to Emmiter pin of the transistor.

Solder -ve wire of speaker to Collector of 3055 transitor as solder in the picture.

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

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

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

Now our audio amplifier circuit is completed so connect battery to the battery clipper and

Plug-in aux cable to mabile phone and play music.

This type we can make an audio amplifier circuit using 3055 metal transistor.

Thank you