I've also had very good results using wire-wrap wire for winding small RF transformers. Pretty easy to work with - and it's rugged.
Charlie, K4OTV -----Original Message----- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of mstang...@comcast.net Sent: Wednesday, August 21, 2013 2:01 PM To: topband@contesting.com Subject: Re: Topband: RX antenna transformer winding 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?l angId=-1&storeId=10001&catalogId=10001&search_type=jamecoall&freeText=wire+w rap+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 _________________ Topband Reflector
