Hi It was EG&G Frequency Products back when I worked for them (not in Salem, but still the same division).
They then bought Perkin Elmer and changed the name. Now they seem to be somebody else ..,.,. ======= You can go into whatever loops you care to about the way space products are done. The gotcha is that making *sure* it’s done right is way cheaper than sending a tech to Mars to fix this or that. Right now they are saving a ton of money because the “old” GPS sats (with the EG&G Rb’s in them ) just will not die. Thus they have waited a decade to send up the replacements …. Before we start hearing “well, noting ever breaks these days” …. how is the Galileo system doing for frequency standard reliability ? :) ====== In terms of “I don’t want one” …. well, they are pretty much the best Rb ever made anywhere / ever. They are as close as you will get to a maser and not *be* a maser. Bob > On May 6, 2019, at 9:51 PM, jimlux <jim...@earthlink.net> wrote: > > On 5/6/19 3:54 PM, Bob kb8tq 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. > > > Yeah, this one: > Radiation > Hardened to withstand natural and manmade space environments, including > phase- continuous operation through transient radiation > > is a pain. > > The vibe is high, but not mindbending they don't say whether it's sine or > random. But as a comparison the usual cubesat qualification level is 14grms... > > > Who was Excelitas originally? Salem, MA - is it EG&G? > > > >> Bob >>> On May 6, 2019, at 5:37 PM, William H. Fite <omni...@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 <kb...@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_pal...@sasktel.net> wrote: >>>>> >>>>> >>>>> >>>>> On 2019-05-06 10:00 AM, Bob kb8tq <kb...@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 >>>>> >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@lists.febo.com >>>>> To unsubscribe, go to http://lists.febo.com/mailman/ >>>> listinfo/time-nuts_lists.febo.com >>>>> and follow the instructions there. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@lists.febo.com >>>> To unsubscribe, go to http://lists.febo.com/mailman/ >>>> listinfo/time-nuts_lists.febo.com >>>> and follow the instructions there. >>>> >>> >>> >>> -- >>> Homo sum humani a me nihil alienum puto. >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com >>> To unsubscribe, go to >>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.