As Tidak Ada mentioned, It would be necessary to keep the anode cage / cathodes distance the same as in small tubes to keep the breakdown voltage the same. I dont know whether the discharge would behave the same way when distances (and voltage) would be increased to keep the proportions.. There will also be problem with power consumption.. Cost of neon is absolutely no problem, if You want to fill a half cubic meter to 25torr, that would be 20 liters of neon - $100.. The biggest trouble will be tooling and machinery, it is not easy to make large glass envelopes, stems and other stuff. Also a bakout oven for large tubing would be necessary.
It is my secret target, to make as big nixie tube as possible, hopefully I will present it here one day - I have some ideas of how to .. I am starting from small ones, going step by step higher ;-) I may reveal that the small scale manufacture of 50mm digits tubes is almost ready. I wish to have more time to document the progress :-( You can see some snapshots here: https://www.facebook.com/daliborfarnycom Sorry for using that thread for self promotion ;-) Dalibor 2014-04-28 15:19 GMT+02:00 Tidak Ada <[email protected]>: > I am afraid it will be very expensive to buy the amount of neon. > Further, I think the supply voltage will need to be dangerous high in case > you want to keep the ratio of the dimensions intact and the needed current > will be high, resulting in an unpleasant power consumption. > > eric > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of B Otto > Sent: maandag 28 april 2014 14:05 > To: [email protected] > Subject: [neonixie-l] Neon size limitations? > > Reading the thread on "fake gigantic nixies" got me thinking about the > possibilities or REAL gigantic neon applications. Is there a practical limit > on how large a neon indicator could be? Using traditional methods, would it > be possible to make a neon glow lamp from say a five gallon carboy? > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send an email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/66578db5-8cc9-485a-92b2-0d90c78 > c3819%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send an email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/!%26!AAAAAAAAAAAYAAAAAAAAAPDddShx705MuX20yCpp0vvCgAAAEAAAADBKTkrgnL5Eog1G9YNpFwsBAAAAAA%3D%3D%40zeelandnet.nl. > For more options, visit https://groups.google.com/d/optout. -- Dalibor Farny ---------------------------------------- phone: +420 724 321 571 http://www.daliborfarny.com blog: http://dalibor.farny.cz -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CA%2BnkT5qzrCfYnAUcqMmP2D2Z%3DgL0W%3DM1QqabQmdw_1p7ph0cQA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
