This is a very simple loudspeaker amplifier which uses as an IC LM386, which is one of the most versatile amplifiers exists. The LM386, an operational amplifier receives the signal of MIC1 is a microphone which amplifies it and sends it to SPKR1 which is an 8-ohm speaker mounted in a cone to further amplify the audio signal.
Megaphone Circuit Diagram
![Megaphone Circuit Diagram Megaphone Circuit Diagram](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsQEt19odbkcP8Sm_0Kxukh-UWCjYcqrJB4VZ41eRINf3q4rJ_3ES01ZukE1Pmrh18OTHIQdx2PpJwYjOKMFA2HeDLxE_GCl4E-7kG9fIOWa_vb-ZitaY7zTDiCebTfpsrDxj-Wm2EviAS/s640/MegafoneMegaphone+Circuit+Diagram.png)
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