[Amps] Source for large purchase of toroids?

[Jim Barber]

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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