[TowerTalk] ferrites for Beverage transformers

Dan Maguire djm2150 at yahoo.com
Mon Apr 10 22:35:25 EDT 2017

Jim wrote:
>>> The key to this is knowing u' and u'' (u' is mu, u'' accounts for the loss component) for the material. Fair-Rite publishes this data for all of their materials as a graph of the values as a function of frequency in a dozen or so pages near the front of their excellent catalog.

You can also find the info using this link:


If you click on the "xx Material" links on the left you get a data sheet with the µ' and µ'' curves and if you click on the "Permeability (CSV)" links you can download a .csv file to play with the numbers yourself.

Dan, AC6LA

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