Yep - got a bounce notice today. Did not send anything I believe. Why must this be so hard? Would there be some huge cost involved in getting a more forgiving server setup that does not throw out all but the most primitive text. The FMT-nuts is a good example of something that works well and accepts photos and graphics.
I would post many circuits and other time nuttery stuff but the server arrangement make it just too much trouble. So I don't bother.? Best regards to all? john K6IQL -----Original Message----- From: time-nuts-request <[email protected]> To: time-nuts <[email protected]> Sent: Tue, Nov 4, 2014 5:00 pm Subject: time-nuts Digest, Vol 124, Issue 39 Send time-nuts mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of time-nuts digest..." Today's Topics: 1. Re: Hydrogen Maser KIT! Update #1 (Mark Kahrs) 2. AOL Email Issues ([email protected]) 3. Varian R-20 Rubidium Frequency Standard (Adrian) 4. Re: Varian R-20 Rubidium Frequency Standard (paul swed) 5. Re: AOL Email Issues (Said Jackson) ---------------------------------------------------------------------- Message: 1 Date: Tue, 4 Nov 2014 08:54:04 -0500 From: Mark Kahrs <[email protected]> To: Discussion of precise time and frequency measurement <[email protected]> Subject: Re: [time-nuts] Hydrogen Maser KIT! Update #1 Message-ID: <caeokdfewmc0eyj7331mkwvrw8zdvzxgk7rbr94vcr__vidm...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 There's been a fair number of papers from Hahvahd about bulb coating for masers. Interestingly enough, here's a patent: http://www.google.com/patents/US3859119 from 1972. I had to figure this out, but Yuri is referring to flourophosgene a.k.a. carbonyl flouride. If you'd like to read a really nice detailed paper on bulb coating for Rb cells, try this one out: http://walsworth.physics.harvard.edu/publications/1999_Phillips_otherdoc.pdf On Mon, Nov 3, 2014 at 3:46 PM, Chuck Harris <[email protected]> wrote: > Hi Yuri, > > It would be a very good idea to keep the temperature of > the nichrome wire low, and that might be the biggest problem > with the vacuum deposition technique... the wire could get > too hot in some places, and stay too cool in others. > > A really uncontrolled experiment, aka: a thermal wire stripper, > gets covered with white snow from the teflon vapor released > while stripping teflon wire. > > -Chuck Harris > > Yuri Ostry wrote: > >> Hello, >> >> Monday, November 3, 2014, 5:40:30, Chuck Harris wrote: >> >> C> I would think that making the teflon coating would be pretty easy. >> >> C> What I would try is to put a nichrome boat, and some teflon into the >> C> vessel, and pull it down to a good vacuum. Then heat up the boat, >> C> and the teflon should sublime, and condense on the walls of the >> C> vessel. >> >> C> The nichrome boat could be something as simple as wrapping the nichrome >> C> into a solenoid form around some teflon rod. >> >> C> -Chuck Harris >> >> Teflon decomposes at high temperatures, releasing some sublimate and a >> lot of really nasty chemicals, like fluorfosgen. There is a chance >> that really thin even coating can be produced this way, but a lot of >> experimentation would be needed. >> >> I would try to take samples of PTFE-insulated hookup wire (from different >> manufacturers, say white Alfa or Belden wire and russian MGTF wire that >> use >> slightly different PTFE formula) and try to make coating inside glass >> tube samples, using copper wire as heater by itself. >> >> I doubt that there will be good results, though. "Classic" way with >> thin slurry application and heating to teflon melt point to make solid >> film may be more "realistic". >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > ------------------------------ Message: 2 Date: Tue, 4 Nov 2014 10:12:18 -0500 From: [email protected] To: [email protected] Subject: [time-nuts] AOL Email Issues Message-ID: <[email protected]> Content-Type: text/plain; charset="US-ASCII" Is anyone else with an AOL email address still seeing problems? I'm receiving some, but not all, of my own posts to the list, with the "bounce" count on my time-nuts subscription page going up accordingly. It seems to have reset a couple of times recently but is now up to 4 again, and the rate at which posts are missed seems to be increasing. I've checked my settings and all seems ok so would be interested to know if this is just me or whether there are still wider issues? Regards Nigel GM8PZR ------------------------------ Message: 3 Date: Tue, 04 Nov 2014 16:34:25 +0100 From: Adrian <[email protected]> To: Discussion of precise time and frequency measurement <[email protected]> Subject: [time-nuts] Varian R-20 Rubidium Frequency Standard Message-ID: <[email protected]> Content-Type: text/plain; charset=UTF-8 I got a nice old Varian R-20 rubidium frequency standard that would be nice to get working. To begin with, there is at least a problem with the voltage regulator circuit. Does anyone have a manual? I couldn't locate anything on the web. Regards, Adrian ------------------------------ Message: 4 Date: Tue, 4 Nov 2014 10:58:26 -0500 From: paul swed <[email protected]> To: Discussion of precise time and frequency measurement <[email protected]> Subject: Re: [time-nuts] Varian R-20 Rubidium Frequency Standard Message-ID: <CAD2JfAgc=AF7oF8cq5KeEsxCsJ7oJK+=cmcfpydg55ryh-q...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Wow varian made RBs. Learned something today and sorry no manual. Regards Paul WB8TSL On Tue, Nov 4, 2014 at 10:34 AM, Adrian <[email protected]> wrote: > I got a nice old Varian R-20 rubidium frequency standard that would be > nice to get working. > To begin with, there is at least a problem with the voltage regulator > circuit. > > Does anyone have a manual? I couldn't locate anything on the web. > > Regards, > Adrian > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > ------------------------------ Message: 5 Date: Tue, 4 Nov 2014 09:00:02 -0800 From: Said Jackson <[email protected]> To: "[email protected]" <[email protected]>, Discussion of precise time and frequency measurement <[email protected]> Cc: "[email protected]" <[email protected]> Subject: Re: [time-nuts] AOL Email Issues Message-ID: <[email protected]> Content-Type: text/plain; charset=us-ascii Same here Nigel, However I seem to have gotten about 200+ emails about a Lucent GPSDO over the last couple of days so something is working, or the list simply got inundated with Lucent KS-24361 related emails. Bye, Said Sent from my iPad On Nov 4, 2014, at 7:12, GandalfG8--- via time-nuts <[email protected]> wrote: > Is anyone else with an AOL email address still seeing problems? > > I'm receiving some, but not all, of my own posts to the list, with the > "bounce" count on my time-nuts subscription page going up accordingly. > > It seems to have reset a couple of times recently but is now up to 4 > again, and the rate at which posts are missed seems to be increasing. > > I've checked my settings and all seems ok so would be interested to know if > this is just me or whether there are still wider issues? > > Regards > > Nigel > GM8PZR > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. ------------------------------ Subject: Digest Footer _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ------------------------------ End of time-nuts Digest, Vol 124, Issue 39 ****************************************** _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
