Today's SouthGateARC.org page has a link to Tom's talk at the 2013 TAPR/ARRL Digital Communications Conference. I don't know whether this has been linked to time nuts in the past, but it's an enjoyable presentation. southgatearc.org/news/2014/january/adventures_of_a%20_time_nut.htm#.UuqiQ5Uiwag Bob - AE6RV