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Metal Oxide vs Wirewound Resistors

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  • Metal Oxide vs Wirewound Resistors

    I can get 5W resistors in wirewound or metal oxide. Any particular difference between the two? I am using them for B+ rail and/or cathode resistors for the power stage.

  • #2
    ...most metal oxide resistors are "flame proof" (good)

    ...while most wirewound resistors can be "inductive" (not good) due to their constrution.
    ...and the Devil said: "...yes, but it's a DRY heat!"

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    • #3
      Both are flameproof. Wirewound resistors DO exhibit some inductance by the sheer fact that they a coil of wire wound on a ceramic form, not necessarily a bad thing. I limit their use to power supplies, screen grid resistors and cathode-bias resistors. There is no other place they would really be needed.
      John R. Frondelli
      dBm Pro Audio Services, New York, NY

      "Mediocre is the new 'Good' "

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      • #4
        thanks for the info.

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        • #5
          to paraphrase...

          Originally posted by Old Tele man View Post
          ...most metal oxide resistors are edit-"cheap"-edit (good)

          ...while most wirewound resistors can be edit-"less cheap"-edit (not good) due to their constrution.
          go metal oxide!

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