Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread John Allen
> Who was Excelitas originally? Salem, MA - is it EG? Yes: http://www.excelitas.com/Pages/About/History.aspx John K1AE Bolton, MA -Original Message- From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of jimlux Sent: Monday, May 06, 2019 9:52 PM To:

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread jimlux
On 5/6/19 7:04 PM, William H. Fite wrote: 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

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread jimlux
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

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread William H. Fite
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

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread jimlux
On 5/6/19 5:34 PM, William H. Fite wrote: I suppose that shouldn't surprise me but, since I have neither ITAR credentials nor a metric shit load of money, it's a good thing that I don't want one. Category XV— Spacecraft and Related Articles (e) Spacecraft parts, components, accessories,

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Poul-Henning Kamp
In message , "William H. Fite" writes: > 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. In addition to a metric shit-load of money, you also need an ITAR approval before they will sell you

[time-nuts] [All gone] 1U rack mount project boxes with LCD and PS for free (sort of)

2019-05-06 Thread Oz-in-DFW
All units are spoken for. On 5/3/2019 4:06 PM, Oz-in-DFW wrote: > > I have some 12" deep rack mount project boxes (mostly) free for the > asking. These are cleverly disguised as Cobalt RAQ 3&4 computer > servers.  Perfect for that Thunderbolt project or something similar. > > Package includes a

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Bob kb8tq
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 wrote: > > Anyone know the

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread William H. Fite
I suppose that shouldn't surprise me but, since I have neither ITAR credentials nor a metric shit load of money, it's a good thing that I don't want one. On Monday, May 6, 2019, Poul-Henning Kamp wrote: > > In message < >

[time-nuts] Garmin WNRO

2019-05-06 Thread Thomas D. Erb
Is there a listing of Garmin GPS devices that have a WNRO problem - their support page doesn't state which ones have a problem. We have used their 17HVS and 16xHVS units. Their website just says; "Our testing shows the vast majority of Garmin GPS devices will handle the WNRO without issues."

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread William H. Fite
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 wrote: > Hi > > Ummm ….. e ….. the Efratom Rb’s use an integrated lamp plus one cell. > >

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Bruce Griffiths
As expected the seller doesn't know, but offered 2 cells for the price of one if further info on the cells he's offering can be provided. Determining the cell filling would likely be somewhat interesting/challenging. Absorption spectroscopy using a tunable ECDL comes to mind to sort out the

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Bob kb8tq
Hi Ummm ….. e ….. the Efratom Rb’s use an integrated lamp plus one cell. http://www.wriley.com/A%20Modern%20MIL%20Rubidium%20Frequency%20Standard.pdf There still are a lot of people doing the lamp plus two

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Ed Palmer
On 2019-05-06 10:00 AM, Bob kb8tq 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!)?"?

[time-nuts] WWV's 100-year Anniversary

2019-05-06 Thread Azelio Boriani
The NIST WWV will be celebrating its 100-year anniversary in October 2019. The oldest continuously operating radio station in the world. There will be also a special event amateur radio station (WW0WWV)

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Bruce Griffiths
I asked the seller which cell. We'll see what the response is. If its filled with RB87 and buffer gas it may be usable with a suitably tuned ECDL locked to the correct line. Bruce > On 06 May 2019 at 14:04 Bob kb8tq wrote: > > > Hi > > I’m sure they are good cells. The gotcha is “which one is

[time-nuts] WWV 100 Year Celebration

2019-05-06 Thread John Marvin
Just an FYI,  WWV will celebrate 100 years on the air in October of this year.  They will have an open house an recognition ceremony in Fort Collins on Tuesday, October 1st.  My amateur radio club (NCARC), is sponsoring  a special event amateur radio station, call sign WW0WWV from September

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Bob kb8tq
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 …. Bob > On May 5, 2019, at 5:32 PM, ed_pal...@sasktel.net wrote: > > I've seen lots of weird stuff on ebay, but I never thought I'd

Re: [time-nuts] Rubidium Cells for Sale ?!

2019-05-06 Thread Paul Bicknell
Hi How would you put it into operation / use it Regards Paul -Original Message- From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of ed_pal...@sasktel.net Sent: 05 May 2019 22:33 To: time-nuts@lists.febo.com Subject: [time-nuts] Rubidium Cells for Sale ?! I've seen