Hi Russell: There are a number of different models. I have perfected one that's better than all the prior versions, see: Digital-Retro-Turbo-Encabulator http://www.prc68.com/I/DRTE.shtml There are footnotes on this page with reference papers describing in detail= the prior version. There's also links to promotional videos for both the Chrysler and Rockwell= versions. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html piclist-request@mit.edu wrote: > [OT] How does this device work? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .