Did send Bill some pictures off list Bert
Sent from Samsung tabletpaul swed <paulsw...@gmail.com> wrote:I have numbers of pix. Each is 2 MB so need another way to handle it. You will get a good feel from the pictures what I did. Schematic is paper. Lots of notes I would have to re-decode. It was Oct 2011. Regards Paul WB8TSL On Mon, Sep 23, 2013 at 8:14 PM, wb6bnq <wb6...@cox.net> wrote: > Hi Bert, > > Any chance of some high resolution photos ? > > Bill....WB6BNQ > > > > ewkeh...@aol.com wrote: > > Twelve years ago I did disassemble a regular and a high performance >> tube, the only negative effect was I joined time nuts. The guts still >> decorate my window sill. The only parts inside that may be temperature >> sensitive are some copper wires with a clear coating. Every thing else is >> metal or ceramic. >> Bert Kehren >> >> >> In a message dated 9/23/2013 5:44:22 P.M. Eastern Daylight Time, >> j...@miles.io writes: >> >> I've always wanted to try baking the entire tube to vaporize any >> accumulations of Cs metal outside the internal oven. Is that what you >> did, >> Paul? If some of the free cesium metal near the detector can be >> recondensed >> at the oven end, or just redistributed uniformly throughout the tube, it >> might render a noisy tube usable again. >> >> The point at which cesium vaporizes is 250C / 482F, and that seems like >> it >> could be survivable unless there are thermoplastic structures or >> insulation >> sleeves inside the tube for some reason. The operation might be tricky, >> because while you wouldn't want to heat the tube sufficiently to vaporize >> all of the remaining cesium in the internal oven, you would also need to >> bake the tube for quite some time to heat its internal structures >> uniformly, >> since it's basically a vacuum bottle. Outgassing from various internal >> materials and structures would also be a concern. Something to try with >> a >> tube that is otherwise ready for the scrap heap... >> >> -- john, KE5FX >> Miles Design LLC >> >> >> >>> -----Original Message----- >>> From: time-nuts-boun...@febo.com [mailto:time-nuts- >>> boun...@febo.com] On Behalf Of paul swed >>> Sent: Monday, September 23, 2013 12:52 PM >>> To: Discussion of precise time and frequency measurement >>> Subject: Re: [time-nuts] HP5061B Beam Tubes >>> >>> Tom >>> I added 10 degrees and used the built in temp sensor in the tube as a >>> gauge. So its sort of accurate to say 10 degrees. I remember evaluating >>> >>> >> the >> >> >>> temp several ways. >>> I did not return it to original temp as I believed at the time I was >>> >>> >> baking >> >> >>> out the last few Cs. >>> What your saying in the threads very interesting. But don't have time to >>> >>> >> go >> >> >>> back and adjust or reconnect the old oven controller. I would have to >>> >>> >> look >> >> >>> at all of that again to see whats needed. I did this about 2 years ago >>> >>> >> its >> >> >>> in the time nuts archive I suspect. >>> Regards >>> Paul. >>> >>> >> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> and follow the instructions there. >> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> and follow the instructions there. >> >> >> > > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.