Mercury + stainless steel cathode are the best combination for the longest lifetime of the tube. Another possibility is to use molybdenum cathode, but it is not easy to obtain (0.1mm shim), I dont know how to etch it, it is quite brittle to work with and difficult to spotweld to lead-in-wires. I will fill mercury by mercury dispenser - metal compound, activated by heating, this procedure relieve the mercury.. Similar to flashing the getters,
Dalibor 2012/6/26 glasslinger <rons...@att.net> > Good reason for not using mercury in your tubes! Pick a low sputter > cathode metal so it isn't necessary. Also, getters are not really necessary > in tubes operating at nixie tube pressures. Just do a good bakeout and you > will be fine. > > ron > > > On Tuesday, June 26, 2012 5:09:26 AM UTC-7, Dalibor wrote: >> >> Important info! Thanks for that! >> >> Dalibor >> >> 2012/6/26 Alek onet >> <aleksander_zawada@poczta.**onet.pl<aleksander_zaw...@poczta.onet.pl> >> > >> >>> Flashes getters aren't good for nixie tubes because barium mirror >>> exchange mercury vapours to another gases. That's why. >>> >>> >>> Best regards >>> Alek >>> >>> W dniu 2012-06-26 09:51, Dalibor Farný pisze: >>> >>> Thats exactly what I mean, I will use flashed getter for testing - I >>> will disassemble some old TV tube as Ron suggested. But I want to use right >>> getter later.. >>> >>> Do You have any info about your progress on your site? >>> >>> Dalibor >>> >>> 2012/6/26 jb-electronics <webmas...@jb-electronics.de> >>> >>>> Hi folks, >>>> >>>> the only tube with a flashed getter I know of is the XN-1: >>>> http://www.tube-tester.com/**sites/nixie/data/XN1/XN1.htm<http://www.tube-tester.com/sites/nixie/data/XN1/XN1.htm> >>>> >>>> To be honest: I will not use getters at the moment. There is so much >>>> glasswork to figure out for me, that is the part that I will focus on in >>>> the next months. :-) >>>> >>>> Jens >>>> >>>> Hi Dylan, >>>> >>>> flashed getters are not used in nixies (I havent seen it at least), >>>> just some VFD tube use flashed getters. Flashed getters leave a coating on >>>> a glass envelope of the tube - we don't want that. I think that kind of >>>> getter needs only initial activation by heat which could be done by >>>> induction heating as well as in the case of flashed getters. Look to IN-14 >>>> nixie, there is exactly the same pellet. >>>> >>>> The only matter to solve will be attaching the pellet to a wire, but I >>>> think that will be possible to do by spot welding - inspired by IN-14. >>>> >>>> Thanks, >>>> >>>> Dalibor >>>> >>>> 2012/6/26 dylan roelofs <doktorb...@gmail.com> >>>> >>>>> Hey Dalibor and others- >>>>> I don't feel that these are the right getters for nixie tubes. >>>>> The literature lists them as thermally active- they only absorb if >>>>> you put them somewhere hot. >>>>> Many styles of getters are made this way; most tubes do run quite >>>>> hot, beacuse of the filaments.. >>>>> >>>>> There isn't anywhere in a nixie tube that is constantly 100C-200C. >>>>> (That's part of the magic of nixies, of course) >>>>> >>>>> You really want some flashed barium getters; they absorb gasses at >>>>> any temperature. >>>>> >>>>> -Dylan >>>>> www.dylankehderoelofs.com >>>>> >>>>> >>>>> >>>>> >>>>> On Monday, June 25, 2012 11:21:36 AM UTC-7, Dalibor wrote: >>>>>> >>>>>> Hello guys, >>>>>> >>>>>> I've got an offer on getters, tech info attached.. the price is >>>>>> approx. 5pcs/1 eur. Is anyone interested in it? I will place an order in >>>>>> several weeks, I may send some pieces sealed in argon filled tube.. >>>>>> >>>>>> -- >>>>>> Dalibor Farny >>>>>> http://dalibor.farny.cz >>>>>> >>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "neonixie-l" group. >>>>> To view this discussion on the web, visit >>>>> https://groups.google.com/d/**msg/neonixie-l/-/VDpd_HcdKewJ<https://groups.google.com/d/msg/neonixie-l/-/VDpd_HcdKewJ>. >>>>> >>>>> >>>>> To post to this group, send an email to neonixie-l@googlegroups.com. >>>>> To unsubscribe from this group, send email to neonixie-l+unsubscribe@* >>>>> *googlegroups.com <neonixie-l%2bunsubscr...@googlegroups.com>. >>>>> For more options, visit this group at http://groups.google.com/** >>>>> group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> >>>>> . >>>>> >>>> >>>> >>>> >>>> -- >>>> Dalibor Farny >>>> http://dalibor.farny.cz >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "neonixie-l" group. >>>> To post to this group, send an email to neonixie-l@googlegroups.com. >>>> To unsubscribe from this group, send email to neonixie-l+unsubscribe@** >>>> googlegroups.com <neonixie-l+unsubscr...@googlegroups.com>. >>>> For more options, visit this group at http://groups.google.com/** >>>> group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> >>>> . >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "neonixie-l" group. >>>> To post to this group, send an email to neonixie-l@googlegroups.com. >>>> To unsubscribe from this group, send email to neonixie-l+unsubscribe@** >>>> googlegroups.com <neonixie-l%2bunsubscr...@googlegroups.com>. >>>> For more options, visit this group at http://groups.google.com/** >>>> group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> >>>> . >>>> >>> >>> >>> >>> -- >>> Dalibor Farny >>> http://dalibor.farny.cz >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "neonixie-l" group. >>> To post to this group, send an email to neonixie-l@googlegroups.com. >>> To unsubscribe from this group, send email to neonixie-l+unsubscribe@** >>> googlegroups.com <neonixie-l+unsubscr...@googlegroups.com>. >>> For more options, visit this group at http://groups.google.com/** >>> group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> >>> . >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "neonixie-l" group. >>> To post to this group, send an email to neonixie-l@googlegroups.com. >>> To unsubscribe from this group, send email to neonixie-l+unsubscribe@** >>> googlegroups.com <neonixie-l%2bunsubscr...@googlegroups.com>. >>> For more options, visit this group at http://groups.google.com/** >>> group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> >>> . >>> >> >> >> >> -- >> Dalibor Farny >> http://dalibor.farny.cz >> >> >> -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To view this discussion on the web, visit > https://groups.google.com/d/msg/neonixie-l/-/5oh7X-N_KH4J. > > To post to this group, send an email to neonixie-l@googlegroups.com. > To unsubscribe from this group, send email to > neonixie-l+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/neonixie-l?hl=en-GB. > -- Dalibor Farny http://dalibor.farny.cz -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. 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