[Elecraft] Toroid enamel covering

Tom Hammond n0ss at earthlink.net
Tue Mar 6 09:10:12 EST 2007


Bruce/Dianne:

>I am curious about the removal of toroid wire enamel covering 
>material in preparation for winding. Is it essential that bare wire 
>not touch the toroid ring?

Most of the toroidal cores (ferrite, colored cores) used in Elecraft 
kits are NON-CONDUCTIVE, so it's not nearly as important to not have 
a bear wire touching the core.

However, some of the non-ferrite cores may be somewhat conductive.

I usually try  to tin the lead up about halfway PAST the bottom edge 
of the core, so that when I install the inductor, and when I PULL on 
the lead, to snug it down, I'll pull the TINNED part of the wire into 
the plated-thru hole while NOT pulling in any UNTINNED part of the lead.

Hope this helps a bit.

73,

Tom Hammond   N0SS



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