If anyone is interested, I am in the process of building two 7.5" diameter
X 7.5" long Ferrite Sleeve Loop Antennas (FSL). In the past I have done many
experiments with this size FSL, and there is an article posted on this
sight covering those experiments.
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I will be selling both of them and will either build them as single band,
or dual band. With the single band units I can build?them for LW, or MW
coverage. With the dual band units they will cover both LW and MW bands.?Based
on my past experiments I know that they will perform equal to, or better than a
4' box loop. My method of building is using ferrite bars rather than?rods and
based on my experiments, I can not tell any difference in performance between
the?two methods. With the bars they are much lighter in weight and allow for a
much nicer looking build.
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Both FSLs will have?Red Oak end pieces and will be mounted on a Lazy Susan
with Red Oak top and bottom. The variable capacitors that I will use are the
very small Russian high Q units, with a 3:1 turn ratio. The front panels will
have nice looking graphics.
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The prices for the FSLs will be $400 for MW band coverage, $435 for LW
coverage and $475 for dual band coverage, plus shipping cost. These will be
built first class, no junk. At this point I have most of the mechanical?work
completed and the ferrite bars have been epoxied to the substrates?and covered
with fiberglass and are?ready to be wound.??
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These maybe the last that I build, although I still have materials to build
more.
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If anyone is interested in one of these please contact me off list at
everettsharp? A O L and?I will?configure them to your specification.
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Everett N8CNP
Everett N4CY