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Single coil bobbin questions

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  • Single coil bobbin questions

    Bought the coil winding equipment from J Archer on here and have a few questions. Can i just wrap 1 layer of tape around the magnets or should I spray them with lacquer? Poly,shellac,varnish, will anything work for dipping?

  • #2
    I think tape alone is just fine if you can really get it right out to the edges. I use the USPS branded packing tape at my local department store as it extra thin and seems very tough. I lay down a strip and trim to width with a straightedge and x-acto knife. It wants to be about 1/64" wider than the space so it rolls up the tiniest bit onto the flat work and seals the end magnets completely.

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    • #3
      If you are doing many, then most guys dip in lacquer, and then some tape, and some don't tape after the dipping dries.
      I recommend taping, whether you dip or not.
      T
      Last edited by big_teee; 02-08-2016, 09:57 PM.
      "If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
      Terry

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      • #4
        Trying to get away without spraying if possible. I figured the tape would stop it from shorting if the magnets got moved by someone or whatever. I can get this tape for 4/1$ appears to be intertape brand crepe backing, painters tape. I guess the spraying also helps with moisture and warping but did originals have lacquer?

        Also, i haven't wound any yet just getting the bobbins ready, learning how to use the magnetizer, gauss meter. Making a traverse out of whatever i can find here. Also making a tensioner of sorts, maybe a top part of a fishing pole. I didn't use any CA on the magnet install as i bought a small 1/2 ton arbor press at Harbor Freight and the magnets fit in very tightly. I guess i will see if there's flare after i wind a few.
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        • #5
          I can see you've got your own ideas, which is good.
          Just do it the way you want to, and adjust from there.
          Last edited by big_teee; 02-08-2016, 09:57 PM.
          "If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
          Terry

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          • #6
            NePA northeast Pa. I do have a lcr meter on the way so i can see if there are changes using lacquer, tape,or nothing,that's the way i learn, by experimenting. Tonekraft appears to have the best prices on flatwork.

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            • #7
              I like to dip mine ... twice.

              I believe it helps to not only insulate the magnets, but also acts a little like an adhesive keeping the flatwork and magnets together.

              Good luck

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