[RFI] Electric blankets
jim at audiosystemsgroup.com
Wed Nov 18 09:11:01 PST 2009
On Wed, 18 Nov 2009 11:27:58 -0500, Martin Ewing wrote:
>Eight or nine turns on a type 43 or 77
>core is much better, but may require surgery.
See measured data in my RFI tutorial for multi-turn chokes wound on
#31, #43, #61, #77, and #78 toroids, and on a #31 1-inch i.d. clamp-
on. For 40M, #31 or #43 are the weapons of choice.
Jim Brown K9YC
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