Anybody Wind Their own Inductors?

Discussion in 'Home Theater Projects' started by Jonathan_D, May 1, 2003.

  1. Jonathan_D

    Jonathan_D Stunt Coordinator

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    Just curious. I know there was a section in Vance Dickason's book on winding inductors and wondered if anyone was "rolling their own", so to speak.
     
  2. Greg Monfort

    Greg Monfort Supporting Actor

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    Yes, and no. [​IMG] Not being very patient and having arthritis, to make air cores I used to buy rolls of magnet wire (which are nicely wrapped already) that are at least as large as my calcs for the desired DCR and measure more than what I need then unwind them until I get to the desired value. Cut/strip and you're ready to install.

    Here's an on-line calculator: http://www.colomar.com/Shavano/inductor_info.html

    Have fun! [​IMG]

    GM
     
  3. Jonathan_D

    Jonathan_D Stunt Coordinator

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    Thanks for the great link. What do you use to measure the inductors? Do have a woofer tester or something similar?
     
  4. Allen Ross

    Allen Ross Supporting Actor

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    My Audio freak of a friend does all his own inductors, he uses "the best wires" and gets the henrys to the exact, of couse it takes him 2 weeks to get just one XO done but hey he loves what he does and does amazing work.
     
  5. Greg Monfort

    Greg Monfort Supporting Actor

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    Why, with an inductance meter, of course! [​IMG]

    Actually, for DIYing a decent RMS multi-meter is a must have IMO and getting one with an inductance, capacitance, frequency measuring functions isn't all that much more in the 'computer age'.

    GM
     
  6. Jonathan_D

    Jonathan_D Stunt Coordinator

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    I have a 18 year old Radio Shack digital multi-meter, but I'm almost certain it doesn't measure inductance. [​IMG]

    More tools, more tools! [​IMG]
     
  7. ThomasW

    ThomasW Cinematographer

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    It takes an LCR or impedance bridge to measure an inductor. Standard digital multi-meters won't do the job.

    I've been 'rolling my own' inductors for decades. With a power winder it takes about 1 minute to make a good inductor. Trimming it to an exact value take another minute or two.

    Here's a link to pics of my winder. And a good source for bobbins

    Although the pic below is hand trimming a cap, the same Sencore bridge is used to trim inductors

    [​IMG]
     

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