Since some are coloured, you can reasonably assume that they are powdered iron rather than ferrite as the ferrite manufacturers, particularly Fair-Rite and Ferronics, normally don't colour code thei
Does anyone know of a method of measuring the characteristics (permeability) of ferrite cores? I have a box of these most without any identification although I do have T200, 68-2T and T68-2s whose ch
It occurs to me that you can make a tuned circuit and measure resonance with a GDO when a ferrite core is inserted into the inductance. A graph could be made of the different resonances with differen
Dear Peter, besides measuring the AL value as alrady described there is another rather simple way to determine the characteristics of ferrites: Take an Ohms meter and see if the core itself is conduc
