I use wire wrap wire when winding small cores. The Kynar insulation is tough and resists nicking.
<http://www.jameco.com/webapp/wcs/stores/servlet/StoreCatalogDrillDownView?langId=-1&storeId=10001&catalogId=10001&search_type=jamecoall&freeText=wire+wrap+wire> OT: Wire wrapping was very popular in the 60's and the 70's before the advent of multilayer printed circuit boards. It was very reliable. The backplane of the Apollo Guidance Compluter was connected via wire wrap. You can see an example at the Infor Age Museum in Wall, NJ. <http://w2dtc.com/2011-0522-infoage/2011-0522-0061.jpg> Mike N2MS _________________ Topband Reflector
