I found few ferrite cores recently from my tools box they are T60006-L2063W517 -- Ferrite Toroids / Ferrite Rings Core 63x50x25 58.6uH@10kHz well my question is, how do I check they are in good condition, as they look pretty old and want to check if I can still use them....
Ok so in datasheet I can find :
Inductance test without DC-magnetisation
Ieff x N = 40 mA
f = 10 kHz
Specified value: 44 µH <= AL <= 85 µH
What does it indicate and how to setup this ...? Open to any suggestions/ ideas..