FD,

If you are going to try the 'fully covered evenly spaced' wire wrapped
Ferrite Rod Antenna (FRA). Try using nylon/poly Fishing Line as the
non-electrical/non-magnetic spacing material. Start at one end with
both the wire and the FishLine and tightly wind them as a 'pair' flat
and evenly over the FRA. Usually, 100 LB FishLine works well. For
some 'types' of FRA Material and FRA "Sizes" using one wire and two(2)
FishLines (twice the space) will work better.

Just a simple 'trick' to keep the Wire Coil Tight and Evenly Spaced.

iane ~ RHF
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= = = "Frank Dresser"
= = = wrote in message ...
"CW" wrote in message
news:hhYmb.25685$mZ5.115003@attbi_s54...
Unless you don't have it then use magnet wire. You'll never know the
difference.


That's true. I have several radios with standard wire wrapped around
the ferrite rods. Usually when they use standard wire, the turns are
spaced widely enough to take up nearly the length of the rod. A wide
wire spacing, about twice the thickness of the wire should reduce losses
and increase the tuning frequency range, compared to close spaced wire.
In practice, the tuning range problem will probably be more noticable.
Just wrap a bunch of wire, spaced maybe 1/16 to 1/8 inch or so, over the
length of the rod. This probably won't tune to the top of the AM band.
Then remove turns until it tunes to the top when the cap is fully open.

Frank Dresser