From: utzoo!decvax!cca!hplabs!hao!menlo70!sytek!zehntel!varian!david@sri-unix Newsgroups: net.followup Title: Re: RFI & Terminals Article-I.D.: varian.113 Posted: Thu Nov 4 09:04:23 1982 Received: Tue Nov 9 05:50:31 1982 I realize that this can't compare with IBM machines playing the 1812 Overture, but I used to work with Nicolet Zeta pen plotters, and we had a diamond-shape test pattern that just by chance generated an (almost) scale - something to do with varying the distance of wher the pen carriage was on the wire. David Brown Varian