[TowerTalk] Ferrites 31 vs. 77 material

[Svend Spanget]

Never the less he gets more than 8 kohm resistive impedance in a large
frequency range using 52...

\Svend
Sendt fra min OnePlus One

ons. 30. okt. 2019 06.35 skrev Jim Brown <jim at audiosystemsgroup.com>:

> On 10/27/2019 9:13 PM, Svend Spanget wrote:
> > Here is an interesting article:
> > http://www.karinya.net/g3txq/chokes/
>
> Yes, but virtually all of the recommendations for #43 and #52 material
> are WRONG! The problem is not his measurements, but rather the wide
> tolerances of Fair-Rite components combined with the relatively high Q
> of these particular materials at HF as compared to #31.
>
> 73, Jim K9YC
>
>
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