Simple Audio Amplifier Using Single Transistor

Audio Amplifier is a device which strengthen the weak signal. Usually in audio systems we use amplifiers to drive the speakers of high power rating .

Now , in this Instructables you are going to see how to make an audio amplifier using single transistor to drive the speaker of 10W .

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Step 1: Components Required

Transistor – 2N6292 x1 [ Aliexpress ]

Resistor – 2.2k x1 [ Banggood ]

Capacitor – 22uF x1 [ Banggood ]

3.5mm Jack x1 [ Banggood ]

Speaker x1 [ Banggood ]

Breadboard x1 [ Banggood ]

Step 2: Circuiting

Pin Configuration of 2N6292

PIN1 - Base | PIN2 - Collector | PIN3 - Emitter

Circuting :

1. First place transistor on breadboard .
2. Insert resistor at pin 1 and 2 of transistor .
3. Insert positive terminal of capacitor at pin1 of transistor .
4. Insert one wire of 3.5 mm jack at negative terminal of capacitor.
5. Insert remain wire of 3.5 mm jack at pin3.
6. Insert one wire of speaker at pin2 .
7. Connect remain wire of speaker to +5v supply .
8. Connect ground of power supply to pin3 .

Plug the 3.5 mm jack to any audio playing device and enjoy the sound.

If have any doubts you can check the breadboard traces.

Download the circuit attached .

Step 3: Circuit Construction and Testing

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