The GR group is looking for a particular AN . K1LKY comes up with a list: https://www.ietlabs.com/genrad_history/historic_appnotes This particular (old) AN might be an interesting read: http://www.ietlabs.com/pdf/GR_Appnote/A68%20Lewis,%20Freq.%20 <http://www.ietlabs.com/pdf/GR_Appnote/A68%20Lewis,%20Freq.%20&%20Time%20Sta ndards.pdf> &%20Time%20Standards.pdf _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.