Noise box circuit 2
Source: InternetPublisher:elleny Keywords: Power supply other power circuits Updated: 2021/12/31
![Noise box circuit 2](http://www.eeworld.com.cn/circuit/upload/fceeb92389e16b271b878c330086b7dd/0195fb87f316bf6cf577a5b94f17238e.gif)
Potentiometer R3 controls the amount of noise, and R8 controls the output level. Since noise cannot be completely eliminated by E3, to be completely noise-free, you need a bypass switch from the input to the output.
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