Air core coil experience

Discussion in 'Wireless & RF Design' started by nerdegutta, Apr 11, 2010.

  1. nerdegutta

    Thread Starter Moderator

    Dec 15, 2009
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    785
    Hi,

    Does anyone have experience with homemade coils like these?

    Advantages?

    Disadvantages?
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    A more common way of making the aircoil is having the end going outside the coil to the PCB.

    [​IMG]

    Bertus
     
  3. nerdegutta

    Thread Starter Moderator

    Dec 15, 2009
    2,517
    785
    Thanks!

    I'll try that.
     
  4. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    Having the lead run through the center of the coil is no longer an air core. It is now using the copper as a core. I dont know how much of a difference this makes because copper is nonferrous, but it still has electrons running through it.

    Ill have to twist some up and scope the differences. Anyone have any experience with this?

    OP, The advantages of the air core coil is they are very easy to "tune" they are not as sensitive as a toroidal or iron core coil. For experimenting with the henry, it is a great tool. Using a core, you are just getting more bang for the space used, and copper used.
     
  5. nerdegutta

    Thread Starter Moderator

    Dec 15, 2009
    2,517
    785
    Good point.
     
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