ferrite core cables
http://lukasoyui177.unblog.fr/2020/05/24/7-little-changes-thatll-make-a-big-difference-with-your-emi-suppression-ferrite-core/
A ferrite Main is really a style of transformer which is used in smaller transformers. It might be termed a hollow Main or semi-rigid Main. It includes a core or envelope with attached plates which happen to