On 3/14/2019 2:47 PM, Mike Walkington wrote:
Hi Jim,
Thanks for the New Choke Cookbook.
Looking at your data, it seems to me that I could build a two core
choke for the higher frequency bands and "spread" the overall choking
impedance out by using different turns on each core, ie 11 turns on a
2.4" and 12 turns on a 2.4" . I believe there are no issues doing so,
but would appreciate your confirmation.
Right, and I say that in the text.
Also, do you have any guidance on the spacing required when packaging
a two core choke, ie if the two cores were in a box, what vertical
spacing is required between them?
I have done no research on that.
If putting chokes in an enclosure it must be vented to prevent
destructive failure due to overheating. That is also addressed in the
text, and with a photo.
73, Jim K9YC
Cheers
Mike, VK1OO
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