Re: [neonixie-l] Re: nixie makers: getters
Hi, thanks, the problem with these companies is that they wants an order of minimum quantity 100.000 pcs and so.. This is quite problem ;-) Dalibor 2012/6/25 kay486 luckyl...@gmail.com Hi there, good that you ware able to find something. I decided to look getters up on google and this is what ive found ( http://www.hdgetters.com/products/products-e.htm ) dont know if you know about it or not, or if its anyhow helpful. They dont seem to have any price indication there. Im not even sure how legit the company is, but the products looked interestong. On Monday, June 25, 2012 7:21:36 PM UTC+1, 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/-/gIKAxK0cWzUJ. 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. 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.
Re: [neonixie-l] Re: Finally completed my latest project...
Wow, I simply don't understand! As Jens said, I haven't better nixie project! Do You have some technical info on your site? Dalibor 2012/6/21 kay486 luckyl...@gmail.com This is absolutely amazing! How did you managed to power the tubes without any risk? On Thursday, June 21, 2012 7:30:38 PM UTC+1, Tony Adams wrote: Hi all, Hope you won't mind me spamming this here but I've finally completed something nixie-based. I have a bad habit of building prototypes only to add to an ever- growing list of 'features' which inevitably result in a completely new design and software rewrite - so I decided to build something that couldn't suffer from feature creep and wouldn't 'benefit' from humidity sensors, GPS, USB, IR or RF remote or movement activation. Some pictures and a (not very good) video of it in operation can be found here: http://www.lasermad.com/?p=235 Hmmm... a PIR sensor might just... I could easily add that to the controller... and a touch switch to deactivate.. or maybe a Zigbee Tony. -- 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/-/5VUa6axnUgsJ. 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. 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.
Re: [neonixie-l] Soda lime - small success
Hi John, are You sure that only gravity is enough for the glass to flow to the mold? At what temperatures? I tried 800C and no luck.. Dalibor 2012/6/17 John Rehwinkel jreh...@mac.com How exactly would you proceed making - say - 13 pin tube bases? You need a lot of temperature for that and precisely formed tools. So far this is nothing I can see myself doing in the near future. I know a person who makes his own (borosilicate glass) sockets, I might be able to adopt the principle some day. The tool part isn't too tough, just carve it out of graphite with pin recesses. CNC machining would be the way I'd go, but back in the day it was done by reading scales on handwheels, and obviously it could still be done that way. Once you have your graphite mold/pin holder, get some nice 3-part pins and lead glass tubing of an appropriate diameter. Lead glass is the way to go here - it liquifies enough to gravity flow into molds like this. Slice off rings that have sufficient glass to make your bases, drop pins into your mold, put the glass ring around them, and melt the whole shebang. For extra niceness, you can have an upper mold half that forms little mounds of glass over the pins themselves and flattens the rest of the base into a disc. Let it cool, and violà! The first one will be a real bear, as you have to make the molds determine the amount of glass, temperature to use, etc. But once you have the molds made and the procedure down, you can knock out additional bases fairly easily. - John -- 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+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. 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.
Re: [neonixie-l] Soda lime - small success
Nice information about making stems are in the Roth's book noticed recently here.. Vacuum sealing techniques, for those interested in this book, let me know outside, I will post link.. I have already got a small test mold made from graphite, 13-pin.. My original intention was to arrange some kind of furnace in microwave oven and melt the glass directly in the mold with dumet wires inside.. But no luck yet, I am able to heat a piece of the carbide to 1000C, but the power is to small to heat all the mold with glass. Another thing is, that at this temperature, the graphite reacts with oxygen producing CO2 and degrades.. I think 10 cycles is maximum for one mold. The furnace with controlled atmosphere (nitrogen, argon, CO2 ..) would be the best.. I am going to ask my friend to test that process in their lab, he has a special tubular furnace able to go above 2000C ;-) I am preparing some short blogpost about my fail ;-) I will publish it tonight. Except that, I had also some small success, sealed argon tubes.. that post is already done: http://dalibor.farny.cz Dalibor 2012/6/17 Dalibor Farný dali...@farny.cz Hi John, are You sure that only gravity is enough for the glass to flow to the mold? At what temperatures? I tried 800C and no luck.. Dalibor 2012/6/17 John Rehwinkel jreh...@mac.com How exactly would you proceed making - say - 13 pin tube bases? You need a lot of temperature for that and precisely formed tools. So far this is nothing I can see myself doing in the near future. I know a person who makes his own (borosilicate glass) sockets, I might be able to adopt the principle some day. The tool part isn't too tough, just carve it out of graphite with pin recesses. CNC machining would be the way I'd go, but back in the day it was done by reading scales on handwheels, and obviously it could still be done that way. Once you have your graphite mold/pin holder, get some nice 3-part pins and lead glass tubing of an appropriate diameter. Lead glass is the way to go here - it liquifies enough to gravity flow into molds like this. Slice off rings that have sufficient glass to make your bases, drop pins into your mold, put the glass ring around them, and melt the whole shebang. For extra niceness, you can have an upper mold half that forms little mounds of glass over the pins themselves and flattens the rest of the base into a disc. Let it cool, and violà! The first one will be a real bear, as you have to make the molds determine the amount of glass, temperature to use, etc. But once you have the molds made and the procedure down, you can knock out additional bases fairly easily. - John -- 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+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 -- 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Soda lime - small success
Thanks! ;-) I would like to provide more text on the site, but it takes a lot of time to write something right.. So I try to make more photos ;-) http://dalibor.farny.cz/custom-stems-first-attempt/ Dalibor 2012/6/17 kay486 luckyl...@gmail.com I really like the update on your page! Yove made quite some progress :) On Sunday, June 17, 2012 8:53:26 PM UTC+1, Dalibor wrote: Nice information about making stems are in the Roth's book noticed recently here.. Vacuum sealing techniques, for those interested in this book, let me know outside, I will post link.. I have already got a small test mold made from graphite, 13-pin.. My original intention was to arrange some kind of furnace in microwave oven and melt the glass directly in the mold with dumet wires inside.. But no luck yet, I am able to heat a piece of the carbide to 1000C, but the power is to small to heat all the mold with glass. Another thing is, that at this temperature, the graphite reacts with oxygen producing CO2 and degrades.. I think 10 cycles is maximum for one mold. The furnace with controlled atmosphere (nitrogen, argon, CO2 ..) would be the best.. I am going to ask my friend to test that process in their lab, he has a special tubular furnace able to go above 2000C ;-) I am preparing some short blogpost about my fail ;-) I will publish it tonight. Except that, I had also some small success, sealed argon tubes.. that post is already done: http://dalibor.farny.cz Dalibor 2012/6/17 Dalibor Farný dali...@farny.cz Hi John, are You sure that only gravity is enough for the glass to flow to the mold? At what temperatures? I tried 800C and no luck.. Dalibor 2012/6/17 John Rehwinkel jreh...@mac.com How exactly would you proceed making - say - 13 pin tube bases? You need a lot of temperature for that and precisely formed tools. So far this is nothing I can see myself doing in the near future. I know a person who makes his own (borosilicate glass) sockets, I might be able to adopt the principle some day. The tool part isn't too tough, just carve it out of graphite with pin recesses. CNC machining would be the way I'd go, but back in the day it was done by reading scales on handwheels, and obviously it could still be done that way. Once you have your graphite mold/pin holder, get some nice 3-part pins and lead glass tubing of an appropriate diameter. Lead glass is the way to go here - it liquifies enough to gravity flow into molds like this. Slice off rings that have sufficient glass to make your bases, drop pins into your mold, put the glass ring around them, and melt the whole shebang. For extra niceness, you can have an upper mold half that forms little mounds of glass over the pins themselves and flattens the rest of the base into a disc. Let it cool, and violà! The first one will be a real bear, as you have to make the molds determine the amount of glass, temperature to use, etc. But once you have the molds made and the procedure down, you can knock out additional bases fairly easily. - John -- 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-GBhttp://groups.google.com/group/neonixie-l?hl=en-GB . -- Dalibor Farny http://dalibor.farny.cz -- 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/-/audInw3BesQJ. 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. 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.
Re: [neonixie-l] ZM1042 (Valvo) Nixie tube updated
Nice, thanks.. Is there anyone who knows how the mercury dispenser (glass tube with heating wire around it) works? How many mercury there was, how it was fixed to glass tube.. thanks.. Dalibor 2012/5/27 Dieter Waechter i...@nocrotec.com Hi! I have updated the ZM1042 (Valvo) page. Check out the new pictures http://www.tube-tester.com/**sites/nixie/nixie-news.htmhttp://www.tube-tester.com/sites/nixie/nixie-news.htm Have a nice one Dieter -- 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-GBhttp://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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] ZM1042 (Valvo) Nixie tube updated
Thanks for reply, I hope Ron will answer.. So the pill is closed on both ends before inserting in vacuum? I cant imagine the process of sealing the pill full of mercury or evaporating from closed pill.. But thanks for that info, Dalibor 2012/5/27 Dieter Waechter i...@nocrotec.com ** Hi! If I remeber well, the mercury was soaked up by a light vacuum into the giver pill. Then sealed on both ends Then the heater wire was wrapped around it. Spot welded onto the tube construction. Then it was heated up to vaporize the mercury. But *Ron Soyland* might know more about it. Hope he is listening here? A big hand on him from me on this position. ;-) Dieter - Original Message - *From:* Dalibor Farný dali...@farny.cz *To:* neonixie-l@googlegroups.com *Sent:* Sunday, May 27, 2012 10:04 PM *Subject:* Re: [neonixie-l] ZM1042 (Valvo) Nixie tube updated Nice, thanks.. Is there anyone who knows how the mercury dispenser (glass tube with heating wire around it) works? How many mercury there was, how it was fixed to glass tube.. thanks.. Dalibor 2012/5/27 Dieter Waechter i...@nocrotec.com Hi! I have updated the ZM1042 (Valvo) page. Check out the new pictures http://www.tube-tester.com/**sites/nixie/nixie-news.htmhttp://www.tube-tester.com/sites/nixie/nixie-news.htm Have a nice one Dieter -- 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Flange parts...
Hi Jens, I actually mean system with metal to metal seals, sorry ;-) But even these parts with KF/NW flanges are expensive.. I am going to build one from glass, all parts are easy to collect and I will learn just glassblowing, what will be useful for nixies too.. Dalibor 2012/5/23 jb-electronics webmas...@jb-electronics.de Hi, John's manifold is amazing, there is so much thought in every single detail. Still speechless. if You want to build a metal manifold based on the KF/NW flanges, it would be very expensive, these components are used in 10^-9 torr system.. That sounds a little too much; DN16 systems use rubber o-rings: http://upload.wikimedia.org/wikipedia/commons/thumb/9/97/KF_25_Tee.jpg/800px-KF_25_Tee.jpg I do not think you will achieve 10^-9 Torr with these. Do you perhaps mean the CF system where you have metal-to-metal seals? Anyway, I am not craftsman enough to build myself a fancy manifold like John, so that is why I asked for possible sources of a needle valve of the like I posted. Jens Dalibor 2012/5/23 jb-electronics webmas...@jb-electronics.de Hi folks, I am currently working on my manifold (actually, at the moment it is less than a monofold), and I use the DN16 flange system. The best vacuum that I can achieve is 10^-2 mbar at the moment. Currently I am trying to find a nice needle valve for that system, just like this one here: http://www.ld-didactic.de/index.php?id=ld-artikela=378776L=2 But this is very costy at 200EUR plus 20% tax. Do you guys have any idea where to get vacuum party at more reasonable prices? Jens -- 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Flange parts...
Hi Jens, look at John's manifold, just for inspiration, if You want to build a metal one.. cheap components.. http://www.neon-john.net/Neon/Shop_equip/Metal_Manifold/Metal_Index.htm if You want to build a metal manifold based on the KF/NW flanges, it would be very expensive, these components are used in 10^-9 torr system.. Dalibor 2012/5/23 jb-electronics webmas...@jb-electronics.de Hi folks, I am currently working on my manifold (actually, at the moment it is less than a monofold), and I use the DN16 flange system. The best vacuum that I can achieve is 10^-2 mbar at the moment. Currently I am trying to find a nice needle valve for that system, just like this one here: http://www.ld-didactic.de/**index.php?id=ld-artikela=**378776L=2http://www.ld-didactic.de/index.php?id=ld-artikela=378776L=2 But this is very costy at 200EUR plus 20% tax. Do you guys have any idea where to get vacuum party at more reasonable prices? Jens -- 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-GBhttp://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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Pressure and kind of gas in nixies
About the neon, I am in touch with a salesman from Messer group, he offered me probably the same bottle - Cangas 1l 12 bar bottle, 12 litres of neon, 50 eur + VAT. They offer pressure regulator what can be evacuated for 200eur... and simple one for 100 eur.. Are you sure You will be able to use this cheaper one? I am afraid of leaking or air contamination.. :-( Dalibor 2012/5/21 kay486 luckyl...@gmail.com Yea, i know ist expensive so i wanted to know how much you eventually payed for it. On Monday, May 21, 2012 12:56:42 PM UTC+1, Jens Boos wrote: Neon is quite expensive; about 50EUR for 12 liters. It is a pressurized bottle at 12bar, so it almost looks like a can of hair spray ;-) The pressure regulator is quite espensive, though, 130EUR. But the good thing is you only need to buy that once. Jens Ah i see, so thats why i havent found anything on your site. The good thing, i guess, is that you already have the neon somewhat sorted out. How much did the neon cost you? On Monday, May 21, 2012 12:38:00 PM UTC+1, Jens Boos wrote: Hi, oh, I started reading myself into the topic in November, but I had several difficulties on the way. I am currently writing down my experiences so far, I will create a new section for that on my website, but it will take another two weeks or so. I have not managed to create a glow lampe or something yet, but I am confident that I will be able to do so in the next month. I work with soda lime glass and a primitive soldering torch that you cal buy in any hardware store, and I even managed to create simple pinch seals that are vacuum tight. I have some Neon here in a pressure bottle, but I have some vacuum problems in my setup. The pump is a two-stage rotary pump that goes down to 5E-3 mbar, but I still need a needle valve to insert the Neon gas into the tube and a proper tube connection. If you count the buts in my sentences you can see that there is a lot of stuff to figure out :-) It is very exciting, but also quite time consuming. At the moment I am building a better power supply with a little more juice; 300V and 10mA are a little wimpy. Jens And how are you doing with your homemade nixies? I didnt know you also tried to make some util i read your comment on that video. On Sunday, May 20, 2012 11:36:27 PM UTC+1, Jens Boos wrote: Nice pictures! I have a video somewhere around here with a broken CD47 in a vacuum bell filled with 2%Ar98%Ne, the pressures are in the same range (but only down to 3 Torr or so). Jens It's my old experiment, but I think that it would be helpful: http://tubedevices.com/alek/**pwl/wyladowania/wyladowania_e.**htmhttp://tubedevices.com/alek/pwl/wyladowania/wyladowania_e.htm -- 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/-/VQUfcDFc1cIJhttps://groups.google.com/d/msg/neonixie-l/-/VQUfcDFc1cIJ . 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-GBhttp://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 view this discussion on the web, visit https://groups.google.com/d/** msg/neonixie-l/-/pEaqF1pbKwoJhttps://groups.google.com/d/msg/neonixie-l/-/pEaqF1pbKwoJ . 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-GBhttp://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 view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/5rMEF9cd5RIJ. 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. -- 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Pressure and kind of gas in nixies
Nice solution, but I am afraid I would destroy the flask and let the neon go out ;-) If I were from US I would try it, but because I am from EU where we have nothing like this or if we have, it is several times the price in US, I will use a cangas bottle :-( The solution with magnet is very nice! Dalibor 2012/5/21 John Rehwinkel jreh...@mac.com Neon is quite expensive; about 50EUR for 12 liters. It is a pressurized bottle at 12bar, so it almost looks like a can of hair spray ;-) You should be able to do better than that if you don't need that much neon. http://www.montroy.com/catalog/main/itemdetail.app?item_no=NEON It's 0.9 liter of neon at atmospheric pressure for about US$20. This way, you can get away without a pressure regulator or needle valve. Fuse the flask onto a bit of tubing on your manifold with two stopcocks near each other*. Once you're pumped down, spin the one closer to the flask a half turn (which will quickly open and close it again). This will trap a little bit of neon between the two stopcocks, at a pressure somewhat below atmosphere (this will drop as the neon is used). Then meter the neon into the manifold with the second stopcock. Since you're partitioning out maybe half a milliliter of neon at atmospheric pressure or less into a manifold that's considerably larger, even if you just leave the second stopcock open, you'll already be down to something in the useful range. If you want more pressure, close the second stopcock and spin the first again. This is not a precision setup by any means, but for those of you who'd like to play with neon on the cheap, it's a reasonable way to get going without spending too much money. * These glass flasks have a thin glass seal to keep the neon in. The usual way to open one is to put a clean piece of ferrous metal in the tubing before sealing it up. Then open both stopcocks and run your vacuum pump until the manifold is pumped down good. Then close the stopcocks and use a magnet to yank your metal chunk over to break the glass seal. If your metal chunk isn't clean, your neon will be contaminated. - John -- 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Re: Homemade thermionic valves
it is a blowhose.. search for blowhose in google (pictures..) Dalibor 2012/5/15 jb-electronics webmas...@jb-electronics.de Can anyone help me with this video? http://www.youtube.com/watch?v=3FN9J4zgsgk What is the thing he mentions at 6:55? I did not quite catch it. Jens The only trouble is that he has so many special equipment I think most of us are not fortunate enough to have at their disposal... But the techniques are explained very well, there is so much to learn! Jens You are welcome! The best thing is that he still makes new tubes/videos. On Tuesday, May 15, 2012 7:40:22 PM UTC+1, Jens Boos wrote: This is amazing! Thanks for sharing! Jens Hi there, well, if you like videos about homemade tubes, chec out this guy. He makes all sorts of tubes and he explainst the individual steps really well. http://www.youtube.com/user/**glasslinger/videoshttp://www.youtube.com/user/glasslinger/videos On Thursday, May 3, 2012 3:25:47 AM UTC+1, William Lee wrote: In case someone in the group didn't see this, I thought people might be interested in some homebrew tube making. Pretty cool stuff! -- 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/-/PL-enBhTPR8Jhttps://groups.google.com/d/msg/neonixie-l/-/PL-enBhTPR8J . 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-GBhttp://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 view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/jFGugU0ZNAIJ. 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. -- 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Re: looking for Weston: Cold cathode glow discharge tubes
Hi Danill, You are genuine designer ;-) i would be very grateful for a sample of Kovar wire! I could provide a role of stainless steel foil, 0.1mm thick, 316L type - low carbon. It could be used for making the cathodes by photo-etching. I am expecting a package from USA, I couldn't find a producer in Europe.. Do You have any pages showing experiments? I will send a link to Weston's book tomorrow, I haven't finished the changes yet.. Tank You! Dalibor 2012/5/11 AAKA (Daniil) andrakon...@gmail.com Hi Dalibor, Yeah it's mine :) , if you want i can send you some amount of Kovar wire to experiment with (you don't need to flaten the Kovar) so it's easier. And you can weld other wires to it. Dan. -- 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/-/oUo7puuGvC4J. 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. -- 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Re: looking for Weston: Cold cathode glow discharge tubes
Hi Vladimir, thats nice to hear about small nixies, I am going to make nixies in size of ZM1040, and then I will go for much bigger tubes ;-) The book will be tomorrow.. As for the cathode material - I think stainless steel in combination with mercury dispenser were used in latest nixies, so it will be better than molybdenum. I will work with mercury, it is toxic, but it is not so bad.. it doesnt change a DNA, it doesnt make a cancer and the halflife of it in human body is 50 days.. (50 days and a half of mercury in your body is away..). I am curious about laser cut cathodes! I tried to write to Moore company about stems, but no answer, what companies did You write to? I would also buy some borosilicate stems.. Do You know something about how the stems are made? You wrote something about tooling - I have no idea about tools to make it, probably some drilling machine.. As for the glass - I use Simax, local producer, it is also borosillicate (3.3) glass, good experience with it.. Thank You, Dalibor 2012/5/11 Vladimir Vucicevic vladimir.cik...@gmail.com Hi Dalibor, I am from Belgrade, Serbia. Same as you I am trying to make some nixie tubes, but my goal is to make tube as small as possible. Thanks a lot for the book, I am looking forward for it! About nixies, I am going to use molybdenum cathodes because I want to try to avoid adding mercury. I saw some diagrams where molybdenum cathodes were suggested instead of stainless steel. Although stainless steel with mercury is the best solution for long life, molybdenum is also good. Also, I will try to cut cathodes with laser. Just need to compare prices, if it is not too much I prefer laser. About glass work, I am currently in contact with few companies which produce glass stems. If you can fit in stems that they have in stock it is around 5 euros per stem if you buy more than 100 pieces. Custom made stems are expensive (more that 1500 euros for tooling). Combination of borosilicate glass and kovar alloy can be ordered. I am going with that one too. Also if you need borosilicate glass for kovar welding go directly to Schott company. Schott 8250 is glass made just for that. They said that they make certain amount of this glass once in a year, but they always have something in stock. Minimum quantities are not too big. Regards, Vladimir On May 10, 10:23 pm, Tidak Ada offl...@zeelandnet.nl wrote: Hi Dalibour, It would be nice to get a copy ! Please make the scans of each page separate. It's a munch's work to rework it trying to get double sided pages. 600ppi bitmap is fine for text only pages. For pages with photo's 300ppi gray scale is fine. Markings from the library are easy to remove by PhotoShoping succes _ From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Dalibor Sent: donderdag 10 mei 2012 21:52 To: neonixie-l@googlegroups.com Subject: [neonixie-l] Re: looking for Weston: Cold cathode glow discharge tubes Hi all, I finally find the book and scanned it, I am going to share it with You, but I have to first remove all signs of the library where I borrowed it ;-) I should not be illegal, it so old book.. I am also preparing a workshop for making nixie tubes at home, I am at the same point as Dan, leaking system ;-) You can watch my progress onhttp://dalibor.farny.czI try to share all info, even sometimes too briefly and delayed.. As for the other questions here: - gas mixture search for Penning mixture - it is called after its inventor Penning (and Addink). It is Neon and Argon 0.01 - 1%. More or less argon increases breakdown voltage. - anode material use stainless steel, 0.2mm thick, photo etching - cathode material Cathode material has big influence on breakdown voltage (the same gas mixture: Molybdenum cathode 150V, Fe cathode 240V) I plan to use stainless steel 0.1mm thick (316L low carbon, vacuum casted). I disassembled a Z566M tube and did some tests on cathodes and I think it is stainless steel, Molybdenum would be much brittle and wouldn't melt in 1900C flame as this did.. - cathode distance use the same distance as in commercial tubes, somewhere around 1.5-2mm should be OK. more in Weston. - gas pressure 30-40 torr, higher is better, because it prevents cathode sputtering = longer lifetime, but higher pressure also means higher breakdown voltage and higher power consumption.. Vladimir, Dan, where are You from guys? I am from Czech Republic.. Daliborhttp://dalibor.farny.cz Dne úterý, 10. dubna 2012 14:46:12 UTC+2 Dalibor napsal(a): Hello guys, I am looking for the book from G.F. Weston, Cold cathode glow discharge tubes, 1968, but it is (surprisingly) sold out everywhere ;-) is there someone so kind to provide me a PDF or some other ebook? Thank You! Dalibor Dne úterý, 10. dubna 2012 14:46:12 UTC+2 Dalibor napsal(a):
Re: [neonixie-l] Re: looking for Weston: Cold cathode glow discharge tubes
Nice, I would be interested, it is good for testing purposes.. Is it lead glass? Do You know what kind of glass was used for the tube envelope in combination with this stems? Send me please pricing and shipping on email, I would take some.. Thank You, Dalibor 2012/5/11 John Rehwinkel jreh...@mac.com I tried to write to Moore company about stems, but no answer, what companies did You write to? I would also buy some borosilicate stems.. Do You know something about how the stems are made? You wrote something about tooling - I have no idea about tools to make it, probably some drilling machine.. I have some stems available, but they're large 9-pin affairs. Making nixies from them would either not have all ten digits, or they'd have to be bi-quinary, which are harder to build. http://www.vitriol.com/images/tech/nixies/stems.jpg - John -- 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+unsubscr...@googlegroups.com. For more options, visit this group at 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
[neonixie-l] looking for Weston: Cold cathode glow discharge tubes
Hello guys, I am looking for the book from G.F. Weston, Cold cathode glow discharge tubes, 1968, but it is (surprisingly) sold out everywhere ;-) is there someone so kind to provide me a PDF or some other ebook? Thank You! Dalibor -- 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+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
