Microphone circuit diagram for amplifier

Microphone circuit diagram for the amplifier:

This is the Microphone circuit diagram. this is an easy circuit. every amplifier needs a microphone. if we want to use a microphone for the amplifier then we have to use this circuit. here used only a transistor. C1815 is an NPN transistor. This circuit needs 12 voltages. this is a mono circuit.

This circuit can use for all kinds of amplifiers.

Amplifier circuit diagram using tda2030. this is a 14 watts 4-ohms audio amplifier. this circuit can run with 6-0-6 to 18-0-18 voltage. here need dual voltage positive negative and the ground voltage. normally this circuit is used in the 2.1 sound system. it’s a mono circuit. if we need a stereo amplifier then we have to use 2 circuits. the IC needs a heat sink. 

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Build a Transformer or construct the transformer. Home Theater Circuit Diagram 5.1

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