How to Make Audio Amplifier With One Transistor

In this project you can see how to make amplifier using one transistor.

It's simple project I use just one transistor this amp you can use for headsense or speaker.

It is enough powerful and for battery you need 6-9V

how the amp work:

I use NPN transistor like amplifier signal .

to strengthen the signal (phone song ) you need to connect to base of transistor and to negative pole

what's you need:

1.BC547

2.2x33k resistor or 1x70k resistor

3.wire

1. For the circuit visit my page also more project :

http://arduinoo.tk/