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From: mmm@cup.portal.com (Mark Robert Thorson)
Newsgroups: sci.electronics
Subject: Re: Wiegand wires?
Message-ID: <33389@cup.portal.com>
Date: 30 Aug 90 04:55:50 GMT
References: <5770030@hpscdc.scd.hp.com>
Organization: The Portal System (TM)
Lines: 6

If I'm not mistaken, these are merely iron wires that have axial twists
put in them (by mechanically twisting the wire).  They were once proposed
as a medium for encoding the magnetic stripe of credit cards.  Their
advantage would be that the magnetic anomalies created by the twists
could not be erased and re-recorded, unlike conventional magnetic
recording media.  As far as I know, this proposal never got anywhere.