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Power supply Wiring question

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  • Power supply Wiring question

    Hello. In a new amp project For certain reason have to run relative long wires between bridge rectifier and the first capacitor along the chassis 25 cm or cca 10 inches. I know this link carry high charging pulse currents but have no ideea how critical it is. Does it enough if I run it in twisted pair or it actually needs to be screened with a mesh or a metalic shield please ? Thanks.
    "If it measures good and sounds bad, it is bad. If it measures bad and sounds good, you are measuring the wrong things."

  • #2
    A current radiates a magnetic field. Standard shielding methods don't work here. Shielding would require a "ferrous" material.
    But using a twisted pair with the ground return wire can help a lot as the fields from opposite currents mostly cancel - at least at some distance.
    - Own Opinions Only -

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    • #3
      It won't cause an issue unless you run the wire close to the sensitive preamp circuit.
      --
      I build and repair guitar amps
      http://amps.monkeymatic.com

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      • #4
        Yeah, that I asked for. There in not quite alternating curent opposed in phase...have not a guess about an effective shielding method.
        "If it measures good and sounds bad, it is bad. If it measures bad and sounds good, you are measuring the wrong things."

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        • #5
          Actually a twisted pair of wires carrying the same current running in opposite directions is a shielding method.
          - Own Opinions Only -

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