Hi, I have ordered some current transformers, to measure average current in AC line. http://docs-europe.origin.electrocomponents.com/webdocs/0f47/0900766b80f479= 65.pdf I know usually power wire is just run through the core, but would it make any difference, if that wire made actually a full turn around the core, with ends crossing outside, not running through it twice? --=20 KPL --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .