[time-nuts] Cesium Clock Avialable

Dana Whitlow k8yumdoober at gmail.com
Sat May 19 11:22:30 EDT 2018


Don't Cesium clocks have a beam current integrator of sorts so that it's
possible
to pretty accurately assess the remaining life of the tube?  If not, I'm
terribly
surprised and disappointed.

Also, beginning with a new tube, roughly how long can one be run until it
reaches exhaustion?  Are we speaking months, years, decades, or what?

Dana


On Sat, May 19, 2018 at 10:01 AM, Bob kb8tq <kb8tq at n1k.org> wrote:

> Hi
>
> Unfortunately there really is no way to tell how much Cs is left in the
> tube. You can
> look at beam current and make a guess. All that really will tell you is
> that the fuel
> gauge is on empty or at least just off of empty.
>
> Bob
>
> > On May 19, 2018, at 2:30 AM, Paul Bicknell <paul at bicknells.f2s.com>
> wrote:
> >
> > Hi Doug
> >
> > Is it possible to test its operation and
> > can the time left on the cesium be calculated   Regards Paul
> >
> > -----Original Message-----
> > From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Doug
> Millar
> > via time-nuts
> > Sent: 19 May 2018 05:04
> > To: time-nuts at febo.com
> > Subject: [time-nuts] Cesium Clock Avialable
> >
> > Hi, I am willing to part with my HP 5061A cesium standard and manual. The
> > unit was rebuilt and functioning some years ago and not used since then.
> > There is usable cesium in the tube and the unit worked. I have not
> tested it
> > recently. It has a Patek-Philippe analogue clock in the front. The unit
> is
> > in great physical condition.  Asking $600 plus shipping from Long Beach,
> CA.
> > 90806
> > I also have an ESI 242D resistance calibrator and a Julie primary
> resistance
> > standard in an oven. Let me know if you are interested. Very reasonable.
> >      Thanks, Doug K6JEY
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