I am getting horrible (ground loop type) feedback in an LM386N audio circuit on a breadboard when I use alligator clips from the power supply either via 9v battery or wall PS. If I use a 9v battery clip, this noise is almost (but not totally) eliminated. When using the alligator clips as leads from the PS , the noise drowns out the audio completely. What could be the problem? What am I picking up that could cause such bad noise? I've even tried turning off lights, equip.
Any help would be greatly appreciated.
Any help would be greatly appreciated.
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