It isn't necessarily a "don't bother to" scenario. Do you have time to
read even a fraction of the postings and references in all the
information that passes your desk every day? Unfortunately, I don't.
Now that the reference to your paper has risen above my local noise
level I can "bother" to check it out, thanks.
73,
Jim, N7CXI
Jim Brown wrote:
>> I've seen references to Fair-Rite #31 toriod
>> cores in various places, but haven't been able to find any in their
>> catalog. Do they actually exist in the wild? Beads abound, but it would
>> be nice to be able to build high-impedance chokes in less than several
>> straight feet of cable.
>
> Sometimes I get the feeling that folks don't bother to read what I took
> great pains to learn and write about this.
>
> REPEATING:
>
> Appendix One of my tutorial lists the Fair-Rite part numbers of selected
> parts that, based on their dimensions and mix, are useful for coax chokes
> and for suppressing RFI. It also includes a list of industrial electronics
> vendors who sell at good prices, especially if you buy in quantity.
>
> http://audiosystemsgroup.com/RFI-Ham.pdf
>
> The main part of the tutorial tells you how RFI happens, how ferrites work,
> how to use them to kill RFI, how to use them to wind chokes.
>
> It took me a LONG TIME and a LOT of STUDY and research to figure all this
> stuff out. Expect to spend some time STUDYING it yourself. I've tried to
> write it so that you don't need an EE degree or a lot of math to understand
> it, but you do need to understand circuit fundamentals. But if you do
> happen to be an EE, there's enough technical description of what I'm
> talking about to convince you that it's "real."
>
> 73,
>
> Jim Brown K9YC
> 73,
>
> Jim Brown K9YC
>
>
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>
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