[600MRG] FT-37-WC toroid

[Scott Armstrong]

Paul this is what I found for the W material

[image: image.png]

-Scott AA5AM

On Wed, Nov 20, 2024 at 8:01 AM Paul N1BUG FN55mf <paul at n1bug.com> wrote:

> Hey folks,
>
> I am experimenting with MF and LF again.
>
> I'm trying to source a few FT-37-WC toroids. They are .375 inch or
> 9.53mm OD, W material, epoxy coated. The only reference to such a part I
> can find is Amidon. Of course FT-37-WC would not be what the
> manufacturer calls these. Amidon prices and minimum order are currently
> prohibitive. I would like to get the exact part if possible since I have
> tested and know they work well in my application. Failing that I would
> try a substitute, but I am unable to find permeability for "W" material.
> Can anyone help unravel what these are, who makes them, possible
> substitutes or sources in very small quantity?
>
> 73,
> Paul N1BUG
>
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