On 9/30/2020 9:00 AM, Jim Thomson wrote:
## Danny Horvat is beyond a smart cookie. How many CM chokes do you see
that cover 160-10m,
with 8-12 K of RS..and RS > XS ? No Z bumps either. Ingenious
staggered core design. And no,
you wont blow em up with 4 kw.
The obvious question is, "is the winding on the ferrite core a choke or
a transformer?" Their behavior is VERY different. That it's being used
at a hi-Z feedpoint suggests the latter. N6RK, also a very smart
engineer, has used Fair-Rite #67 for high power transformers.
NA6O, another very sharp engineer who has done some serious lab work of
chokes inside enclosures, emailed me directly questioning the
dissipation issues with practical windings on Fair-Rite #61 and #54.
73, Jim K9YC
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