Here is a very simple, portable and easy to make guitar amp circuit which can be use for practicing or monitoring guitar. This guitar amplifier circuit is built around a TDA7052 IC, its a great IC uses only few external components and provides output of 1.5 watt with a 9 volt battery. The entire circuit can be
easily fitted in a small box with speaker. Use 8 ohms speaker with the circuit, you can also try any 8 Ohms speaker you have in scrap. I have tried an old radio cassette player 5 inch speaker I have in scrap and it was working greatly.