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tapping enamel wire

Discussion in 'Misc Electronics' started by Allan Adler, Feb 21, 2008.

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  1. Allan Adler

    Allan Adler Guest

    I spent some time today reading the first installment of The Impoverished
    Radio Experimenter. The author describes how to wind #24 enamel wire around
    a Quaker Corn Meal box. He mentions "tapping" the wire at certain points
    and I do have some idea of why he would want to do that and at what locations
    along the wire, but I'm unclear about details of how the actual tapping is
    supposed to be done. For example, is one supposed to cut the enamel
    insulation and solder a lead to the wire there or is there some kind of
    clip that will penetrate the enamel and make the connection?
  2. Northe

    Northe Guest


    One technique is to use a narrow strip of cardboard the length of the
    coil form (oatmeal/cornmeal box in your case). At each point where you
    want a tap, run the wire over the cardboard, then lift the cardboard and
    continue winding until the next tap, when you fold the cardboard strip
    down and again run the wire over the cardboard ... repeat as needed.
    When you're finished with the coil, you can use sandpaper to remove the
    enamel from the taps for soldering. I notice that someone else suggested
    making loops, which is also a common technique.

  3. Allan Adler

    Allan Adler Guest

    Thanks to you and Stephen Rush for the helpful answers. Now all I need is
    some #24 enamel wire. I have very bad luck using electronics suppliers'
    websites with my ancient browser. So, maybe I should start collecting
    catalogues, if I can get them for free.

    I also built a crystal set when I was a kid, but I learned nothing from
    the experience. It was just a kit, no explanations other than how to build
    it. If I did it again now, things would be different.

    I also like the Impoverished Radio Experimenter's discussion of building
    your own variable capacitors. He doesn't make it clear, though, how one
    attaches the plates along the axis.
  4. Yukio YANO

    Yukio YANO Guest

    Yukio YANO
  5. default

    default Guest

    No need for an ancient browser Mozilla works for most things and will
    keep you secure - there's a lot of "extensions" to customize the
    functionality like "no script" and "ad blocker." No script blocks by
    default so you have to allow scripting for some shopping.

    I keep a Netscape 4.7 around

    Opera is free too.

    Allelectronics has a paper catalog
    Electronic Goldmine has a paper catalog and plenty of surplus magnet
    wire selling for close to scrap prices
    Edlie electronics - paper and some really old stuff but if you need
    ferrite rods they have them
    American Science and Surplus
    Jameco limited stock but better prices than the big guys
    As well as Newark, Mouser, Digikey - bigger than phone books these

    We got some pretty good results using sliders on coils for crystal
    sets. Particularly for antenna tuners - maybe the shorted turn
    problem is over hyped?
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