[time-nuts] Re: Testing replacement lamps for HP5065A

[Bill Notfaded]

Seems like a really specialized science.  Ironically everything is
shrinking.  We can understand why but the larger bulb Rb seem to last
longer.  Perhaps it's a sign of the times.  Smaller and more disposable.
Sadly that probably means throw away standards.  Perhaps we'll live to see
newer technology like room temperature ion traps for quantum clocks.

Bill

On Sat, Sep 17, 2022, 4:17 PM Bob kb8tq via time-nuts <
time-nuts at lists.febo.com> wrote:

> Hi
>
> You can get what *might* be Rb lamps on eBay. Since the
> contents of the glass bulb are a mix of things, you never really
> know if what’s in there is a good mix. The inside of some of the
> bulbs is coated with Teflon ( this is a good thing ). Again, you
> never quite know if this or that auction item is coated or not.
>
> Next up, you need the right amount of Rb in the lamp. To little and
> there’s not enough atoms to do the job.
>
> Since the bulbs get used for various things other than standards,
> you could easily get some that aren’t going to be any fun to use
> in a standard.
>
> Bob
>
> > On Sep 16, 2022, at 2:59 PM, Ke-Fong Lin via time-nuts <
> time-nuts at lists.febo.com> wrote:
> >
> > Hi Corby,
> >
> > It seems that all the lamps tested are from used rubidium standards.
> > Is it possible to buy "off the shelf" rubidium lamps somewhere?
> > Or is it so "specialized" that's only way to obtain them?
> > Thank  you.
> >
> > Best regards
> >
> > On Thu, Sep 15, 2022 at 10:53 PM Corby Dawson via time-nuts
> > <time-nuts at lists.febo.com> wrote:
> >>
> >> Here are details on some tests I ran on replacement lamps for the
> >> HP5065A.
> >>
> >> Cheers!
> >>
> >> Corby_______________________________________________
> >> time-nuts mailing list -- time-nuts at lists.febo.com
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> >
> >
> >
> > --
> > /* Lin Ke-Fong
> > * anotherlin at gmail.com
> > * I always do what I say, especially if it's something stupid.
> > */
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