Ferrite Cores?

Joined 2004
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I am building a small power supply for an ACP+ and wondered whether it was worthwhile including a couple of these ferrite cores in the mix. My thought was a single loop of the hot and neutral 18 gauge wires through their own ferrite core before the transformer.

Happy to just test them out, but not if I'll be running afoul of smart design theory.



  • Ferrite Cores.jpg
    Ferrite Cores.jpg
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Those look like the type of core intended to be used with single wire passthrough... they might make good candidates for your V+ and V- rails.

The more common arrangement at the AC line input is to use a toroid form with 2 or 3 turns of the hot and neutral wrapped around it.

Don't worry about audio effects. Ferrite, depending on it's formulation, particle size and a bunch of other really annoying math, seldom has any effect below several megahertz.