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Help. What's a ferrite core?

Discussion in 'Plasma TVs' started by boxkg, Jan 10, 2004.

  1. boxkg

    boxkg
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    John Lewis came and installed by Panasonic TH-42PA20. They left behind five large size ferrite cores and three small size ferrite cores. The instruction manual refers to these as supplied accessories and gives instructions on how to install them. But there is no explanation of what they are for. Can someone please explain to a complete beginner?

    Many thanks.
     
  2. GaryB

    GaryB
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    They are normally fitted to the various cables that connect to the set. Their function is to prevent the various signals used inside the set leaking out and causing interference to other electronic products nearby. If you put an AM radio not tuned to a station near to your plasma and then switch the plasma on you will usually her various noises. The ferrite cores should reduce this. Plasmas are electrically very "dirty" as they have an awful lot of clocks and other things in them that generate interference and can cause patterning on TVs, etc. They can also be used to prevent incoming interference but this is not generally their function with plasmas.

    Take a look here for a bit more information.
     
  3. boxkg

    boxkg
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    Many thanks GaryB. I'll try not to get too bogged down in the mathematical equations on the info sheet!
     

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