Today I am going to make an audio amplifier using D882 Transistor.Here I will use only one D882 transistor.
Let's get started,
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Step 1: Take All Components As Shown Below
Step 2: Pins of Transistor D882
This picture shows the pinouts of D882 Transistor.
As pin-1 is Emmiter,
Pin-2 is Collector and
Pin-3 is Base of this transistor.
Step 3: Connect 1K Resistor
Firstly we have to connect 1K Resistor to the Base pin of Transistor as solder in the picture.
Step 4: Connect Capacitor
Next we have to connect 16V 100uf Capacitor to the transistor.
>> Solder +ve pin of capacitor to base pin of the transistor as solder in the picture.
Step 5: Connect Aux Cable Wire
Next connect aux cable to the circuit.
>> Solder Left/Right (+ve) wire of aux cable to -ve pin of capacitor and
Solder -ve wire of aux cable to Emmiter pin of the transistor as you can see in the picture.
Step 6: Connect Speaker Wire
Next solder speaker wire to the circuit.
>> Solder +ve wire of speaker to 1K Resistor and
Solder -ve wire of speaker to Collector pin of transistor as you can see in the picture.
Step 7: Connect Battery Clipper Wire
Now we have to connect battery clipper wire to the circuit.
>> Solder +ve wire of battery clipper to 1K resistor and
Solder -ve wire of battery clipper to emmiter pin of transistor as you can see in the picture.
Step 8: Circuit Is Completed
Now D882 Transistor audio amplifier circuit is completed.
To play song connect battery to the battery clipper and Plug in aux cable to mobile phone and play songs.
Result : Amplifier will give sound loudly than mobile phone.
NOTE : To get good quality of sound from this amplifier make a box for speaker and put speaker on that.