If any parameter spec for the EE65 is wrongly chosen, then it should be the Bmax For the reason that datasheet declares Ae to 540mm square. Does that imply utilizing the 10k pot, or is there something else i should do to the 393 which i won't do with http://juliusxcgko.pointblog.net/The-Greatest-Guide-To-ferrite-bead-symbol-31220302