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Toroids: Do I have these sorted correctly? #QMXplus

 

Thanks!
 

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That’s what came with the kit. Just follow the instructions.?

On Mar 27, 2025, at 9:41?AM, avinoam83 via groups.io <avinoam83@...> wrote:

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Thanks!
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Gary W0CKI
 

Right. It's a bit tricky to really tell which "black" toroids are dull and which are shiny. I think I have it right though.
 

You have it correct.? ?The "shiny" black toroids are coated with a glossy lacquer, but they do this by spraying while the toroid is laying flat, so one side of it is still flat black.? The "dull" black toroids have no lacquer coating at all, they have the original flat black carbon-like exterior.
 

Thanks! To me it also looks like they have a different shape (with the shinier ones having more of a rounded curve), but it could be an optical illusion.
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On Thu, Mar 27, 2025 at 12:09 PM, Stan Dye wrote:

You have it correct.? ?The "shiny" black toroids are coated with a glossy lacquer, but they do this by spraying while the toroid is laying flat, so one side of it is still flat black.? The "dull" black toroids have no lacquer coating at all, they have the original flat black carbon-like exterior.
 

Yes, they are also a slightly different shape.? And made with a completely different manufacturing process and material, a ferrite blend, rather than the powdered iron typically used in the other cores.

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