[time-nuts] Freq STD

[Jan Boutsen]

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