Coil Noise

Forum discussion tagged with Coil Noise.
  1. G

    Coil Noise, Where should i hear it from and what could it be?

    I am kinda just asking this out of Clarification in regards to an issue i am currently having.. I am trying to determine if i indeed have a Battery Problem or Charger Problem.. Supposedly, Certain Power Supplies and/or Chargers make high pitched "Whining" which is supposed to be called a...