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Questions regarding shielding devices against noise, interference, or ESD. Not to be confused with arduino-shield.

2 votes
4 answers
849 views

Blocking cell phone interference on LM386 amp

I built a small amplifier using an LM386 on a protoboard. The problem I have however is that it makes those typical cell phone sounds if my mobile phone is close to it. Since I want to 3d print an e …
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