Dear Chris, LF Group, "Power" ferrites for switch-mode PSU applications like 3C8 / 3C85 / 3C90 /3C95 / 3F3 / N27 / N67 / N87 / F44 / #77 / #78, etc., are all quite similar with mu in the region of 20
Hello Chris, I found W8DIZ a very good source for purchasing toroids. He carries the larger 43 types as well: http://www.kitsandparts.com/toroids.php Best regards, Roelof Bakker, pa0rdt
Chris None in stock but would be happy to get them for you. Only possible problem is the customs forms ... I'm required to list the values of items accurately. I had a run in with US Customs years ag