mini amplifier circuit diagram:

This is a mini amplifier circuit diagram. It’s so easy to make. This amplifier for the learning people. It’s a DIY project. Here we can use a maximum 18-0-18 voltage. Here needs dual voltage. 12-0-12 to 18-018 voltage can be used. 30 watts output.

How to add an extra transistor:

How to add an extra transistor? A Maximum transistor amplifier can add extra transistors, but it will not work if we don’t increase the amperes or voltage. If we want to add an extra transistor, then we have to increase the voltage and amperes. like the voltage is 35-0-35 and 3 amperes for 2 transistors. If we add an extra 4 transistors, then we have to add an extra 4 amperes. And the voltage can be 45-0-45 maximum.

How to add extra transistor

Every amplifier needs a speaker protection circuit. This circuit also needs a speaker protection circuit to protect the speaker. If any cause the circuit to burn, then the voltage can’t burn the speakers.