Topband: RX antenna transformer winding

[George Dubovsky]

I have used plastic coffee stirrers from the fast food joints; they start
out smaller and they cost the same... ;-)

73,

geo - n4ua


On Wed, Aug 21, 2013 at 11:48 AM, <n0tt1 at juno.com> wrote:

> From recent postings:
>
> > I started using Teflon sleeves in windings because I ran out of small
> Teflon
> wire wrap wire I was using. Without Teflon on the wires, and with normal
> mag
> wire, the enamel was easily scratched. Not only that, lightning would
> punch
> through from enamel to core, or from wire to wire.
>
> ** Telon is easily nicked, the type of wire used in modern vehicles is
> very
> robust but with the sleeves plain ole magnet wire works well and allows
> even
> smaller winding bundles.
>
>
> RE: binocular cores and sleeving....
> I didn't have the right size of Teflon sleeves in my junque drawer, so I
> cut
> appropriate lengths of used soda straws from McD's, slit them lengthwise,
> then cut off the excess (lengthwise).  Then I curled the cut straw
> sections
> and pushed them through the cores.  The result is a near perfect fit
> with a slight overlap at the lengthwise cuts.  The overlaps can
> be oriented toward the "outside" of the core so the wire won't
> have a tendancy to open up the overlap.
>
> 73,
> Charlie, N0TT
> _________________
> Topband Reflector
>