On 10/26/2010 9:28 AM, tzikas tzik wrote:
> so material #43 ferrite is improper?
Study my tutorial, previously cited. There are good uses for #43 if it
is used properly (that is, with a sufficient number of turns to match
the operating frequency).
> i have not other material.
One of the great virtues of Fair-Rite products is that they are VERY
well documented -- that is, their product data sheets tell you enough
about them to understand what they do in your application. Other
companies make products equivalent to #43, but their data sheets don't
tell you much, I don't know of any other companies that make anything
like #31.
Unfortunately, Fair-Rite products are difficult to buy in some
countries, especially the UK. There is an extensive list of world-wide
distributors on their website. Google to find it. A partial list of
good US sources is listed in Appendix One of my tutorial.
K2VCO's comments are entirely correct.
73, Jim Brown K9YC
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