[TowerTalk] Make your own Loading Coils DE K0FF

[K0FF]

Make your own loading coils for antenna projects using Caterpillar Grommet
strips. These are used by installers to form grommets around the edges of
holes in sheet metal, and come in strips that are cut to desired length and
snapped into the hole to cover the raw edge. The evenly spaced notches make
an ideal form and support for AIR DUX knockoffs. Use Duco or Testors model
cement to secure the wires in the strips before removing from the temporary
forms.

OR: "If they look like DUX and walk like DUX and quack like DUX, maybe they
ARE DUX" then again maybe not.

First the caterpillar grommet material as purchased from Gateway :
HTTP://homepages.dstream.net/K0FF/Caterpillar.jpeg


Next Wrap the form (whatever size you need) in wax paper and temporarily
tape the plastic strips on there
HTTP://homepages.dstream.net/K0FF/wrapinwaxpaper.jpeg

Wind the coil using the notches as a guide. Seat the wire all the way down
into the notch and wrap the coil tightly. Spread plastic cement down the
strips when the coil is wound.
HTTP://homepages.dstream.net/K0FF/windcoil.jpeg


When the glue is dry, slip the assembly off the form and trim the strips to
correct length
HTTP://homepages.dstream.net/K0FF/finishedcoil.jpeg

Any size diameter or length can be wound, just use bigger forms and more
strips.
HTTP://homepages.dstream.net/K0FF/anysize.jpeg






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