This circuit uses LM386 ic , a low voltage audio amplifier. This circuit is good in amplifying sound signals as low as 30mV and has a gain around 200 times. You can use this amplifier in intercom projects, guitar amps,and others. Use 8 ohms / 2W speaker.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwrhoJv7JFR2TIob1aCmTy940Q2yB2ax1n90C7pIYb718HCrABdTqwrbdB_joqADcPqeYp8hk0WL8AOGsN3PGl8NHAEg0aHsRE3UAz652xB3iNih4Byx6Gn-WWJXv_bGJh1el9PEa1RJ7i/s320/2W+amplifier.jpg) |
amplifier schematic |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh73NOaWsxZR6W237rntu4aHb5pGxw6lPyCUtdeXqgUZm-l-dh82O8bSugYakyc2YgA6L3sejA_OaXNcKPb0xzKy7EN0s25CIzHzgOlasrhaD-KqLyajMnhgLhCfjsQ0dtJrSrxwGK1sAJS/s200/386.jpg) |
LM386 pins |
If you increase the 2.2uF capacitor then you can increase the bass!
ReplyDelete