[time-nuts] Symmetricom CSAC is Cs acting like a Rb unit

[Bob Camp]

Hi

I suspect it's a bit early to really know what the wear out mechanisms
really are (if any). Conventional gas cells have a finite lifetime on the
lamp. For what ever reason, most fail for something other than lamp wear
out. I've had one come in dead with a blown (literally exploded) cap on the
main board. 

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of paul swed
Sent: Wednesday, January 19, 2011 9:12 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Symmetricom CSAC is Cs acting like a Rb unit

I still think Symmetricom should get these out to Time-nuts for the cost of
shipping and handling. They could gain valuable experience from this list.
:-)
As to the cmos square wave, thats really the most reasonable issue to solve.
Low pass filter gain 10 mc xtal more gain.... Or lock a 10 MC sine osc to
it. Suspect there are many ways that reasonably deal with it.
When they ship several units to me for testing I will get right on that
project. I just hope I can still solder at that date.

XXX curious about the method of suspension in the cell. Might the laser
light bouncing around ultimately deteriorate the stuff causing it to fail?

Regards
Paul
WB8TSL

On Wed, Jan 19, 2011 at 7:19 AM, Bob Camp <lists at rtty.us> wrote:

> Hi
>
> I'd certainly find *something* do do with it :).....
>
> Bob
>
>
> On Jan 19, 2011, at 3:04 AM, Poul-Henning Kamp wrote:
>
> > In message <001001cbb7a8$c5456800$4fd03800$@net>, "Chris Erickson"
> writes:
> >
> >> Don't overlook the fact that [...]
> >
> > But hands in the air, who wouldn't love to have one to play with ?
> >
> > Right, me too :-)
> >
> > --
> > Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> > phk at 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.
> >
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