[Elecraft] Compounds to retain windings in place on toroid cores

Mike-WE0H we0h at yahoo.com
Wed Jun 3 20:32:57 EDT 2009


Why not use hot glue on the toroids in the K2? That link shows hot glue 
as a very good wire retaining compound. Does anyone have any data that 
suggests a K2 would not function to the manufacturer's spec's if hot 
glue was used on all the toroids?

-- 
Mike
WE0H
K2 #6698




Jack S wrote:
> A common question concerning inductors wound on toroid cores is whether
> a retaining compound should be used to fix the windings in place.
>
> In the case of the cores used in the K2, retaining compounds are not
> necessary and should not be used. However, this question still comes up
> and there are cases where retaining compounds are necessary, or at least
> desirable.
>
> I've added a page to my web site showing how to make Q-Dope and
> presenting measurements for similar coils retained with real GC Q-Dope,
> my homebrew Q-Dope, beeswax and hot glue.
>
> http://www.cliftonlaboratories.com/coil_coating_compounds.htm
>
> Jack K8ZOA




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