[Elecraft] Toroids

[Tom Hammond NØSS]

Trevor Day, G3ZYY, wrote:

>With all the talk about toroids and baluns recently I decided to rifle 
>through the junk box looking for suitable cores.  It appears that I have 
>plenty of all shapes and sizes but I have no idea of their individual 
>properties.  Is there any way of identifying these unmarked devices so I 
>can put a few to good use?

I agree with Trevor...

It'd certainly be a GREAT idea if someone would/could come up with a 
treatise, in layman's terms, and using (more or less) commonly available 
equipment, to allow us to better identify the myriad toroids we might have 
laying around the shack, and for which we have NO CLUE of their (even 
approximate) properties. Now THAT would be a worthwhile article.

Anyone able to step up to the plate on this?

73,

Tom Hammond   N0SS