[time-nuts] Rubidium Cells for Sale ?!

William H. Fite omniryx at gmail.com
Tue May 7 02:04:34 UTC 2019


Mother of God, really?

I had a friend, now of blessed memory, who was lead communications engineer
for Grumman on the lunar lander. He used to boggle our minds with stories
of the truly absurd lengths that NASA made them go to have hardware "space
certified."


On Monday, May 6, 2019, Bob kb8tq <kb8tq at n1k.org> wrote:

> Hi
>
> Back a while ago it was in the “over a million dollars” range.  Like
> anything that
> is designed for space use, the price is meaningless until you sort through
> what
> kind of paperwork this or that program requires.
>
> Bob
>
> > On May 6, 2019, at 5:37 PM, William H. Fite <omniryx at gmail.com> wrote:
> >
> > Anyone know the price of the Excelitas device? No, I'm not interested in
> > purchasing one, just curious. I assume it is hair-curling expensive.
> >
> >
> > On Monday, May 6, 2019, Bob kb8tq <kb8tq at n1k.org> wrote:
> >
> >> Hi
> >>
> >> Ummm ….. errrr ….. the Efratom Rb’s use an integrated lamp plus one
> cell.
> >>
> >> http://www.wriley.com/A%20Modern%20MIL%20Rubidium%
> >> 20Frequency%20Standard.pdf <http://www.wriley.com/A%
> >> 20Modern%20MIL%20Rubidium%20Frequency%20Standard.pdf>
> >>
> >> There still are a lot of people doing the lamp plus two approach. One of
> >> many:
> >>
> >> http://www.excelitas.com/Downloads/DTS_Frequency_Standards_RAFS.pdf <
> >> http://www.excelitas.com/Downloads/DTS_Frequency_Standards_RAFS.pdf>
> >>
> >> Bob
> >>
> >>> On May 6, 2019, at 3:23 PM, Ed Palmer <ed_palmer at sasktel.net> wrote:
> >>>
> >>>
> >>>
> >>> On 2019-05-06 10:00 AM,  Bob kb8tq <kb8tq at n1k.org>wrote:
> >>>> Hi
> >>>>
> >>>> I?m sure they are good cells. The gotcha is ?which one is it??. A
> >> normal Rb has multiple
> >>>> cells doing different things. You ? umm? errr ? need a set of cells ?.
> >>>
> >>> Why do you think I posed the question "Anybody feeling lucky (or
> >> desperate!)?"?  Don't forget that all(?) newer Rb standards use an
> >> integrated cell so it's a 'set' of one.  Whether that's the case here is
> >> unknown, but not likely given the size of this cell.
> >>>
> >>> The only Russian Rb company I've heard of is Kvarz.  Has anyone seen a
> >> cell from one of their old units?
> >>>
> >>> Ed
> >>>
> >>>
> >>> _______________________________________________
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> >
> >
> > --
> > Homo sum humani a me nihil alienum puto.
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-- 
Homo sum humani a me nihil alienum puto.



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