Audio noise filter circuits

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  Posted by momename - December 29, 2008 at 4:49 am

when we said to Noise signal in an audio system. everyone not likes it, wants to get rid of it all. I also not like them too. However, we can use it to get rid of it. I use transistors. Because it is easy to find. And low noise. Friends try to see the circuit below.
Noise Filter Signal using FET 2N3819
This be Noise Filter Circuit for filter the frequency disturbs all well. By use base type equipment the FET transistor number 2N3819 and Electronic part The other a little again. It can be usable economize with. By the circuit will decrease frequency tall signal more 20KHz well. Then can apply in side sound circuit well , and still have still can fine decorate filter noise level has as well yes.

Noise Filter Signal using FET 2N3819



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