Interesting. So I guess the question is "why?"
Why would powdered metal work better? Is it more lossy at HF?
cheers
Dave G0OIL
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
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