[Amps] construct ferrite "line isolator"

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Mon, 25 Oct 2010 19:52:56 +0300, tzikas tzik <tzitzikas77 at gmail.com>
wrote:

>i have many ferrite beads (material 43) FB-43-7351 and FB-43-1020. How i can
>construct these "line isolatosr".Do you have any schematic? thank you very
>much.

REPLY:

For what it's worth - I have found ferrites to be all but useless at HF
for preventing RFI, even when used in large numbers. I have had much
better success with powdered iron toroids. 

73, Bill W6WRT