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Last edited by andy; 12-07-2021 at 01:32 PM. |
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Quote:
I don't know what the core is for the RCA John Folsom is rewinding, but if it's ferrite, MO=Fe2O3 or the ilk, the ferrite has a high electrical resistivity and shouldn't suffer that type of failure. John |
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Last edited by andy; 12-07-2021 at 01:32 PM. |
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Powdered iron I can believe. It would be pretty strange for ferrite to change that much. Not that strange things don't happen.
However, I was surprised to see the large range of conductivity for various ferrites spanning six orders of magnitude. This table gives the properties and normal uses for ferrites and powdered iron. http://www.ferroxcube.com/prod/assets/sfmatgra_frnt.pdf John |
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