In message <dbb70463b9d04f6589fbf97b2e4be...@vectron.com>, "Bob Camp" writes:
>Conventional gas cells have a finite lifetime on the >lamp. It used to be that Rb's would fail lock because the bulb dimmed from Rb absorption into the glass, but I think they got that fixed with a teflon coating. Thes days most of them ultimately fail from the high operating temperature, through a variety of mechanisms. For the CSAC, my bet would be that the laser is the limiting factor. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.