I've been looking for this, and haven't found anything useful, so I thought I would post the question here: Basically, I am wondering how a shield can around an inductor can not present itself as a shorted turn. I have seen shielded inductors for a long time, with metal cans and a hole for adjustment. To me, this looks like a shorted turn. I haven't found anything that deals with the effects of those cans, so either the effects are negligible, or it's becoming some "lost art". Can someone point me to hard data? My google-fu is not helping. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .