V
VK3YNV
Guest
Here is a video describing a fairly simple method to identify the ferrite type for an unknown core. It works by measuring the magnetic permeability and comparing with the data on the Fair-Rite web site.
The spreadsheet is here https://www.fair-rite.com/wp-content/uploads/2020/05/Toroid-and-Rod-Perm-Calc-003.xls
Might be handy if like me you have ferrite toroids of unknown origin and properties.
Edit: I have added XLS to the accepted file types, so I've attached the spreadsheet.
The spreadsheet is here https://www.fair-rite.com/wp-content/uploads/2020/05/Toroid-and-Rod-Perm-Calc-003.xls
Might be handy if like me you have ferrite toroids of unknown origin and properties.
Edit: I have added XLS to the accepted file types, so I've attached the spreadsheet.
Attachments
-
472 KB Views: 337
Last edited by a moderator: