Re: [neonixie-l] Re: black box from Czech Republic

2017-01-22 Thread Dalibor Farný
Just to make it clear - one day, I would like to develop a big tube like CD47. We currently produce only the R|Z568M tubes (which makes our little team really bussy), the only new tube in development is the colon tube for Zen clocks. Best, Dalibor On Sun, 22 Jan 2017 at 21:32, Paul Andrews

Re: [neonixie-l] Re: black box from Czech Republic

2017-01-21 Thread Dalibor Farný
6-tube clock with CD47.. but where to place such a beast? ;-) I had a problem to find a place for clock with current tubes ;-) On Sat, 21 Jan 2017 at 21:58, Nicholas Stock wrote: > I'll second the CD47'sbigger is better! :-) > > Sent from my iPhone > > On Jan 21, 2017,

Re: [neonixie-l] Re: IN-18 Typical Failure Mechanism

2016-07-14 Thread Dalibor Farný
Hi Jeff, I dont think there is a simple solution to protect the pins from corrosion. Even the air humidity can develop leaks in the seals with time. I know that JJ vacuum tube manufacturer uses gold coating on pins of some of their tubes to prevent corrosion (I dont know if it has actually any

Re: [neonixie-l] Re: IN-18 Typical Failure Mechanism

2016-07-12 Thread Dalibor Farný
02:13 PM, Dalibor Farný wrote: >> >> Hello, >> >> if the tubes is faulty, there must be a cause. If any of the pins is >> leaky, it is practically not repairable. To refill the tube, you need >> to open it and weld a glass tube onto remaining of previous evacuation &

Re: [neonixie-l] Re: IN-18 Typical Failure Mechanism

2016-07-12 Thread Dalibor Farný
Hello, if the tubes is faulty, there must be a cause. If any of the pins is leaky, it is practically not repairable. To refill the tube, you need to open it and weld a glass tube onto remaining of previous evacuation pipe. This is tricky because old tubes are usually made of soft glass which is

[neonixie-l] Video from Tesla (nixie tube manufacture)

2015-05-21 Thread Dalibor Farný
Hello guys, I finally managed to get a DVD full of videos from Tesla factory. The video was made for local museum exhibition about Tesla and I thought it would be a pitty if such a great stuff is covered by dust in archive again. So I asked director of the museum for it and he allowed me to

Re: [neonixie-l] Dalibor's Nixie tube: R|Z568M

2015-02-16 Thread Dalibor Farný
Hello, I know that decimal point is sometimes handy feature, however it would be difficult to add it to current tube. But I will definitely think about it when I start designing next tube. Thanks for usecases, Dalibor 2015-02-16 6:00 GMT+01:00 Jorge amelyena...@gmail.com: Dalibor: Have you

Re: [neonixie-l] Dalibor's Nixie tube: R|Z568M

2015-02-14 Thread Dalibor Farný
tubes with a warranty. Of course, the Z568M market may be a little saturated at the moment. Maybe after you get your video out and people start discussing it, you may do even better in your auctions! On 02/13/2015 02:41 PM, Dalibor Farný wrote: Thanks guys, I am just grateful to community

Re: [neonixie-l] Dalibor's Nixie tube: R|Z568M

2015-02-13 Thread Dalibor Farný
Hello, from my experience, when I stop pumping before achieving 10E-6 torr range, the tube will have too high striking voltage and will not work well because of impurities. This pressure is on the gauge, not actuall pressure in the tube which may be an order higher. It is also specific for my

Re: [neonixie-l] Dalibor's Nixie tube: R|Z568M

2015-02-13 Thread Dalibor Farný
Thanks guys, I am just grateful to community for helping me with the start and so.. I want to pay back for it, and showing what I've discovered might be good idea.. Regards, Dalibor 2015-02-13 18:25 GMT+01:00 jb-electronics webmas...@jb-electronics.de: Well put, Nick, I completely agree!

Re: [neonixie-l] Re: Dalibor's Nixie tube: R|Z568M

2015-02-11 Thread Dalibor Farný
Hi, TM maintanance is quite expensive (bearings), but it lasts quite long time. If You want to use polyphenyl ether (Santovac?) You will have to pay quite a lot of for it. The same with cold trap - liquid nitrogen on the site necessary (or cooling device).. But as I mentioned, the oil molecules

[neonixie-l] red filter on tubes

2015-01-18 Thread Dalibor Farný
Hello guys, I remember I read a post in the forum where someone showed a DIY red filter on a nixie tube. I was searching hard, but I havent found it again. I am going to try making a red filter on my tubes, so I am looking for tips and tricks first.. Any tips for a colours I could use for making

[neonixie-l] Frank Buchwald's Nixie Machine

2015-01-18 Thread Dalibor Farný
I am speechless: http://www.mbandf.com/mad-gallery/creators/nixie-machine/ what a beautiful clock made using original Z568M tubes.. -- Dalibor Farny phone: +420 724 321 571 http://www.daliborfarny.com FB: https://www.facebook.com/daliborfarnycom -- You

Re: [neonixie-l] Re: Cool clock with 6 x Z568M + 6 spare tubes...

2014-09-04 Thread Dalibor Farný
Hi, Fatter digits for big tubes would mean (much) higher current, which is proportional to digit surface. This mean higher power consumption and also earlier end of the tube because of shorts caused by higher amount of sputtered metal from cathodes deposited on insulator rings.. but it is worth

Re: [neonixie-l] Re: Nixie Clock - Time Cycle enough to protect against cathode poisoning? Without slot machine effect

2014-06-26 Thread Dalibor Farný
Hi guys, is there anyone here having a tube with cathode poisoning that is so severe that cant be healed? It should be a bare metal depositing on the cathodes, so I am very confused why it cannot be healed? What kind of tube it is? I am now making a small research on aging new tubes just after

Re: [neonixie-l] Re: Side Viewing Nixie Tubes -- Which are considered the best aesthetically?

2014-06-21 Thread Dalibor Farný
N-12 or IN-12? ;-) 2014-06-21 21:03 GMT+02:00 Dman777 darin.hens...@gmail.com: erI mean N-12 :) https://mail.google.com/mail/u/0/?shva=1#inbox/146bcf38a4e86d4f On Saturday, June 21, 2014 12:43:33 AM UTC-5, Dman777 wrote: Since I am still new at this, I was wondering what the community

Re: [neonixie-l] Re: New Nixie tubes: DF-LS-10, IN-23, IN-30, LC-2, R107

2014-06-09 Thread Dalibor Farný
Hello guys, thank You for nice post, I am working pretty hard to bring back the nixie manufacture. Actually, I bet my living on it, working on it full time. I am close to a small scale production, if You are interested in news, just watch my facebook pages

Re: [neonixie-l] IN-18 versus Z5660M Nixie Tubes

2014-06-04 Thread Dalibor Farný
Hi Dieter, do You have more information about sputtering windows? I hear it for the first time. I know that any hole significantly bigger then anode screen holes let the sputtered particles to go through and deposit on the glass (ZM1040/42 have small window), but I dont know whether it has any

Re: [neonixie-l] Nixie tube sockets - 3D printer!

2014-05-07 Thread Dalibor Farný
Hi Jan, You can use this socket for tubes with 1mm diameter pins: http://uk.farnell.com/harwin/h3161-01/socket-pcb-tin-knurled-1mm/dp/149318 it is not cheap, but works really well and it is easy to solder it. There is 1.93 mounting hole in specs, but use 2mm hole for it, the melted solder will

Re: [neonixie-l] Neon size limitations?

2014-04-28 Thread Dalibor Farný
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

Re: [neonixie-l] Neon size limitations?

2014-04-28 Thread Dalibor Farný
Common nixie tube envelopes have advantage of egg-like shape, the stress is uniformly distributed in the glass.. Picture tubes have one side flat what makes the shape more prone to implosion.. Also proper annealing will be important. Good remark anyway! Dalibor 2014-04-28 18:32 GMT+02:00

Re: [neonixie-l] big tubes in action

2014-04-16 Thread Dalibor Farný
...@zeusprune.ca: On 14-04-14 12:14 PM, Dalibor Farný wrote: this machine was somehow connected to a powerplant and it was able to measure the increase in power consumption :-D It would be absolutely not possible these days.. The local substation could probably get a signal if a lot of load was turned

[neonixie-l] big tubes in action

2014-04-14 Thread Dalibor Farný
Hi folks, my wife just came across a czech TV serial from 1984 where big tubes like (z568m?) appears, I thought it would be nice to share it. Look here: http://www.ceskatelevize.cz/porady/899451-rozpaky-kuchare-svatopluka/28532024029-sporak/ Play the video under the text, hit Přeskočit reklamu

Re: [neonixie-l] Re: Tube manufacturing video

2014-03-11 Thread Dalibor Farný
It is great video, I saw it tens of times. My friend told me, that he was in contact with this guy (his name is Claude Paillard), but he died in 2007 or so.. :-( I am making a video how I made tubes now, I hope it will be finished in month or two, I will share it here once it is finished..

Re: [neonixie-l] Interesting paper on CRT VFD phosphor types...

2014-02-21 Thread Dalibor Farný
Great! Thank You! Dalibor 2014-02-21 18:15 GMT+01:00 Nick n...@desmith.net: Found this in my archives, by Patrick Jankowiak - lot of good information relevant to those building CRT cloks doing stuff with VFDs etc. I have a suspicion that I originally got it from

Re: [neonixie-l] How exactly does mercury increase Nixie lifetime?

2014-02-13 Thread Dalibor Farný
Hi, the mercury adheres to cathode surface and because its molecule is heavy, it is less likely to be relieved from the cathode by electrons bombarding the cathode (compared to relatively light molecules of Fe, Ni, Cr - stainless steel).. The lifetime of mercury doped nixies is 200.000 hrs, tubes

Re: [neonixie-l] How exactly does mercury increase Nixie lifetime?

2014-02-13 Thread Dalibor Farný
Hi, I got some 2mm spacers from eBay (cant find the auction now) and let some 0.9mm thick insulators be made in China (not used yet).. Dalibor 2014-02-13 12:50 GMT+01:00 John Rehwinkel jreh...@mac.com: My experimental tube without mercury is at ~1500 hrs, no signs of metal deposit on glass,

Re: [neonixie-l] Cathode Construction: material? thickness?

2014-02-13 Thread Dalibor Farný
Nothing else than stainless steel makes sense. Just as You wrote, 304 SS is very easy to get and with a mercury makes unbeatable combination. Molybdenum (and possibly tungsten) is more resistant to sputtering (without mercury), but I dont know any nixie tube using a moly cathodes.. Only SS.

Re: [neonixie-l] Cathode Construction: material? thickness?

2014-02-13 Thread Dalibor Farný
Moly without mercury is more sputter resistant than SS without mercury ;-) I havent seen any study about those metals with mercury.. Take a look at the Weston's book, there is a whole chapter about sputtering. Just skip the formulas with strange mathematical symbols and You will be on neat graphs

Re: [neonixie-l] Interesting document on Krypton-doped nixies,,,

2014-02-06 Thread Dalibor Farný
Interesting, do You know which nixie tubes were doped with radioactive krypton? I like especially the content section which occupies a quarter of one page ;-) Dalibor 2014-02-06 10:44 GMT+01:00 Nick n...@desmith.net: Bell Systems Practice document #024-723-801-I2, February 1983 Nick --

[neonixie-l] ShanghaiTime clock in TV

2014-01-16 Thread Dalibor Farný
Hello guys, I found that a prototype of ShanghaiTime clock appeared on a czech TV in main news ;-) Look here: http://www.ceskatelevize.cz/ct24/regiony/257662-batovske-budovy-jdou-k-zemi-nahradi-je-obchodni-centrum/?mobileRedirect=off scroll down below the text, there is a video, so seek to

Re: [neonixie-l] Re: ShanghaiTime clock in TV

2014-01-16 Thread Dalibor Farný
Thanks, good idea! It is small, but with a significant amount of imagination, You can recognize it ;-) Dalibor 2014/1/16 Jon D. jondad...@gmail.com I took a screenshot...see the lower right in the background.

Re: [neonixie-l] Re: What to do with a 0B3 regulator tube ?

2014-01-10 Thread Dalibor Farný
What kind of gas produces green colour? sent from mobile phone Dalibor Farny www.daliborfarny.com Dne 10.1.2014 17:41 Instrument Resources of America iracosa...@hughes.net napsal(a): If you'd like other colors you can have white with Xenon filled tubes, and also orange and green with some

Re: [neonixie-l] Re: What to do with a 0B3 regulator tube ?

2014-01-10 Thread Dalibor Farný
one gas. I'm going to fire up some of the VR tubes that I have and see if I do remember correctly or not. Stay tuned for more.Ira. On 1/10/2014 9:29 AM, Dalibor Farný wrote: What kind of gas produces green colour? sent from mobile phone Dalibor Farny www.daliborfarny.com Dne

Re: [neonixie-l] Visit Dalibor's Nixie Tube with my owneyes in Shanghai Museum of Glass

2013-12-21 Thread Dalibor Farný
Thank You Yan for posting this! Really nice photos! I am happy the clock survived the journey from Czech rep. to China - I was a bit afraid of cracking the glass as I dont anneal it properly yet. By the way, your power supply is one of the few things I havent any problems at all during all my

Re: [neonixie-l] The SHINE experiment - Measuring the lifespan of nixies

2013-11-25 Thread Dalibor Farný
Hi Alex, I can now access the website finally, interesting! About the Weston book, You are right. It is too general and low level, there is no way how to calculate actual sputtering rates using information provided there. Also as You mentioned, they deal with low pressure mostly. But there are

Re: [neonixie-l] The SHINE experiment - Measuring the lifespan of nixies

2013-11-22 Thread Dalibor Farný
Hi Alex, this is pretty interesting! I cant access the website, it is probably unavailable now, but the stream is clear! Do You have any graph how the absorbance rise during that those 7000 minutes? Are You running it on specs current or on higher to make the process faster? The sputtering is

Re: [neonixie-l] The SHINE experiment - Measuring the lifespan of nixies

2013-11-22 Thread Dalibor Farný
Hi Alex, it still didnt work, are You sure that there are no firewall rules to deny users from Europe? I tried it via US proxy and it works. thanks! Dalibor 2013/11/22 AlexTsekenis alextseke...@gmail.com: Hi Dalibor, Thanks. I'm surprised you cannot access the site, no issues here from

Re: [neonixie-l] The SHINE experiment - Measuring the lifespan of nixies

2013-11-22 Thread Dalibor Farný
Hi Alex, I think it will actually be something with settings of the firewall on your server. The server doesnt respond to ping, from my IP and even not from my server that is in a big czech telehouse. however, I checked your site from the proxy and there is plenty good information! I was just

Re: [neonixie-l] Re: IN-37 ???

2013-11-19 Thread Dalibor Farný
It is too small for me, I would not be able to make it ;-) Too delicate work ;-) 2013/11/19 kay486 luckyl...@gmail.com: Exactly, and i think that if you would want to buy it only for its unctionality, not for the historic value. Dalibor could make it chaper :) On Tuesday, 19 November 2013

Re: [neonixie-l] first tube for sale

2013-11-16 Thread Dalibor Farný
Thanks! Be sure every cent goes back to nixie stuff! Thanks You all guys for support! Dalibor 2013/11/16 AntiqueSounds keith...@gmail.com: wow! Super nice work. Reinvest and keep up this great work. It is amazing! -- You received this message because you are subscribed to the Google Groups

Re: [neonixie-l] Re: poll: a socket layout

2013-11-08 Thread Dalibor Farný
Hi guys, thanks for suggestions. I agree that two separate rows of 6pin header are the best.. Easy to make and it would provide good stability to tubes. Common DIP package is too small to fix quite heavy tube on a place, but it would be elegant solution! Dalibor 2013/11/8 kay486

Re: [neonixie-l] Re: Another progress in making nixies

2013-10-23 Thread Dalibor Farný
] On Behalf Of Dalibor Farný Sent: dinsdag 22 oktober 2013 9:48 To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Re: Another progress in making nixies Hello! I shot a short video of my tubes in action here: http://dalibor.farny.cz/nixie-clocks-for-a-contest/ Tubes are now after

Re: [neonixie-l] Re: Another progress in making nixies

2013-10-22 Thread Dalibor Farný
. Thanks for watching! Dalibor 2013/10/7 Dalibor Farný dali...@farny.cz: Hello guys, thanks for support, it is very good motivation! I am actually working all the day on that stuff! Nicholas Stock: Once I manage those small 5cm digit tubes (and get some cash), I am going to improve my

Re: [neonixie-l] Re: Thoughts on nixie lifespan and halogens...

2013-10-10 Thread Dalibor Farný
Hello! As for the sputtering.. I once bought a bunch of ZM1042, Z566M, ZM1040 and similar tubes.. Those tubes (ZM1042) doesnt have a mercury capsule, so I think there is no mercury present. Notice, that those tubes have a hole on the side of the anode. (look here:

Re: [neonixie-l] Re: Another progress in making nixies

2013-10-07 Thread Dalibor Farný
Hello guys, thanks for support, it is very good motivation! I am actually working all the day on that stuff! Nicholas Stock: Once I manage those small 5cm digit tubes (and get some cash), I am going to improve my glassblowing stuff so that I am able to work with bigger diameter glass. I am going

Re: [neonixie-l] Re: Thoughts on nixie lifespan and halogens...

2013-10-02 Thread Dalibor Farný
Thanks for info Nick, that is really pretty bad.. The RoHS directive says that mercury in a product must be in a ration of less than a 0.1% by weight (that is OK), and it cant be intentionally added - this is the problem. But I found some information from 2011 that neon signs are not limited by

Re: [neonixie-l] Re: Thoughts on nixie lifespan and halogens...

2013-10-02 Thread Dalibor Farný
.. . ... I guess that nixie tube could be considered as other lamps not specifically mentioned in this Annex (number 4), what so You think guys? Dalibor 2013/10/2 Dalibor Farný dali...@farny.cz: Thanks for info Nick, that is really pretty bad.. The RoHS directive says that mercury

Re: [neonixie-l] Re: Thoughts on nixie lifespan and halogens...

2013-10-02 Thread Dalibor Farný
Hi Alex, I hope You will share results of your experiments! ;-) Thanks, Dalibor 2013/10/2 AlexTsekenis alextseke...@gmail.com: Hi Nick, I am doing some experimental work on the subject of lifespan due to sputtering. Could you provide the full reference, including if possible a chapter or

Re: [neonixie-l] Awesome Fabrication on Nixie

2013-09-11 Thread Dalibor Farný
:-D Thanks Tim! There is so many possibilites and custom font is definitely one I will try. I will first produce a batch of 100 tubes (z568m style) and then I will work on my own design.. Bye Dalibor 2013/9/11 lai...@wcoil.com: Well we have had the Haydu Brothers, Burroughs, National Union,

Re: [neonixie-l] Re: Something for the tube/nixie making people?

2013-08-28 Thread Dalibor Farný
Thanks, is there any source how to calculate the amount of the mercury needed? I would google it, but I am finding only how much mercury in fish and other encouraging stuff ;-) 2013/8/28 John Rehwinkel jreh...@mac.com I know only about companies producing leaded glass for bowls and other

Re: [neonixie-l] Re: New power supply design

2013-08-13 Thread Dalibor Farný
I will be also interested in buying some! Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 13.8.2013 9:33 taylorjpt j...@tayloredge.com napsal(a): 16V/50W http://ppl.ug/g3NZo2iSQrs/ 24V/77W/1uF http://ppl.ug/05s0AvqBL1U/ 24V/77W/22uFhttp://ppl.ug

Re: [neonixie-l] Another progress in making nixies

2013-07-05 Thread Dalibor Farný
Just as Nick said.. Hg doping extends the life of the tube approx. 40 times (5.000 vs 200.000 hours). But the lifetime is not exactly determined, the glass envelope is gradually covered by sputtered metal thus limiting the brightness and making it look bad. Hg doping is not diffucult and is

Re: [neonixie-l] Another progress in making nixies

2013-07-01 Thread Dalibor Farný
will be ok, I guess the price of the z568m-like tube will be under $200. Bye! Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 26.6.2013 19:53 Alek onet aleksander_zaw...@poczta.onet.pl napsal(a): Hi Dalibor, Are you calculated cost of manufacture of tubes? Best

Re: [neonixie-l] Another progress in making nixies

2013-06-26 Thread Dalibor Farný
Hi Michel, You are right, I am also eager to it glow. As soon as the shed is built, I will move all the stuff there and start with it. It should be a replica or copy of z568m, so the size of the numbers is 5cm. I actually dont have any z568m, so other dimensions are measured from z566m and

Re: [neonixie-l] Another progress in making nixies

2013-06-25 Thread Dalibor Farný
Hello! Yes, I put it accidentally backwards, I thought nobody would notice it :-) Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 25.6.2013 8:39 Dekatron42 martin.forsb...@gmail.com napsal(a): Absolutely wonderful! Did you put the figure 6 in backwards? /Martin

Re: [neonixie-l] Another progress in making nixies

2013-06-03 Thread Dalibor Farný
Hi guys, I am posting some info about the process of re-inventing the nixie tubes.. I made first test assembly from etched stainless steel. Making a real nixie tube is difficult task, but I think there is nothing what could not be solved! You will find brief description here:

Re: [neonixie-l] Re: Six CD 47 / GR 414 Nixies on eBay - what price will it fetch?

2013-05-12 Thread Dalibor Farný
Yes, and probably separate tubes.. Dalibor 2013/5/12 kay486 luckyl...@gmail.com: Well, the auction was removed. My guess is its going to be sold outside ebay, or maybe just tested and relisted on ebay.com On Wednesday, 8 May 2013 19:25:01 UTC+1, Dekatron42 wrote: Nice auction:

Re: [neonixie-l] Re: Fascinating ebay sale ... apparently IN-18 production gear!

2013-05-09 Thread Dalibor Farný
The seller describes the auction as a complete factory for producing the IN-18 tubes, but actually it is just a pile of junk. The most critical parts as stems (pin bases) arent there, digits are just in a form of know-how and so.. Even he has the stamps for the pin bases it would be a real deal to

Re: [neonixie-l] Re: Fascinating ebay sale ... apparently IN-18 production gear!

2013-05-09 Thread Dalibor Farný
Nice, this is good idea! There is actually not problem with money (to go on kickstarter), but with information that is very difficult to obtain.. For example I solve a problem with the matte gray metal sheet what is used for the back of the nixie tubes - it is not shiny but matte to improve the

Re: [neonixie-l] Another progress in making nixies

2013-02-25 Thread Dalibor Farný
, I will try one configuration tomorrow I guess. Jens Hello Jens! It is rated as a high vacuum glass valve, so I guess there should no measurable leak.. I greased it with high vacuum grease, rated for 10e-6 torr. I bought it on ebay for 11 pounds from UK.. Dalibor Farný http

Re: [neonixie-l] Another progress in making nixies

2013-02-07 Thread Dalibor Farný
Hello Jens! It is rated as a high vacuum glass valve, so I guess there should no measurable leak.. I greased it with high vacuum grease, rated for 10e-6 torr. I bought it on ebay for 11 pounds from UK.. Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 7.2.2013 18:06 jb

Re: [neonixie-l] Another progress in making nixies

2013-02-07 Thread Dalibor Farný
Hi, Is it a kf-16 to threaded hole connection? Send me photos and description, I am making some parts for my system currently, so I could make that for You. Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 7.2.2013 21:33 jb-electronics webmas...@jb-electronics.de napsal

[neonixie-l] Another progress in making nixies

2013-02-06 Thread Dalibor Farný
Hello guys! I would like to share my excitement of todays experiments! I was spending a lot of time on making tooling recently, so another glowing something after long time: http://dalibor.farny.cz/test-of-the-glow-tube/ thanks! -- Dalibor Farny http://dalibor.farny.cz -- You received this

Re: [neonixie-l] Etching anodes and cathodes

2013-01-30 Thread Dalibor Farný
Thats it! I was looking for tiny beads several times, but havent found sich a small ones. The height is important, 1.8mm is exactly what is inside z566m! I got a quote from a german company for ceramic washers, over 2 eur per piece :-) Thanks, Dalibor Farný http://dalibor.farny.cz sent from

Re: [neonixie-l] Vacuum system - status report

2013-01-28 Thread Dalibor Farný
Hi Michael, the numbers for nixi tubes is one of the problem I havent sufficiently solved yet. Are your laser cutters able to produce numbers that have 0.4mm wide lines? The material would be 0.1mm thick stainless steel sheet (316L). I could send You some sheets to give it a try, just send me

Re: [neonixie-l] Vacuum system - status report

2013-01-28 Thread Dalibor Farný
One more thing - I would also provide the layout, Dalibor 2013/1/28 Dalibor Farný dali...@farny.cz Hi Michael, the numbers for nixi tubes is one of the problem I havent sufficiently solved yet. Are your laser cutters able to produce numbers that have 0.4mm wide lines? The material would

Re: [neonixie-l] Vacuum system - status report

2013-01-26 Thread Dalibor Farný
Hello Jens, pretty sophisticaed way of leak detection ;-) what do You think by the insufficient greasing on my needle valve? The rubber o-ring used to connect the valve to the system was not greased properly? Or something else? it is not airtight if the scale is adjusted to just zero - does it

Re: [neonixie-l] Vacuum system - status report

2013-01-26 Thread Dalibor Farný
I am not sure if the picture is visible, so it is attached.. Dalibor 2013/1/26 Dalibor Farný dali...@farny.cz Hello Jens, pretty sophisticaed way of leak detection ;-) what do You think by the insufficient greasing on my needle valve? The rubber o-ring used to connect the valve

Re: [neonixie-l] Vacuum system - status report

2013-01-26 Thread Dalibor Farný
Hello Michael, 10E-6 torr is not necessary. For testing purposes is 10-2 torr enough, because then the tube is filled to somewhere around 30 torr what is much higher pressure.. The initial pressure is not so critical in nixie tubes, but influeces the total lifetime of the tube.. However it would

Re: [neonixie-l] Re: 9x Z568M found on ebay

2013-01-19 Thread Dalibor Farný
And 3 users with bids over $5.000, can't believe.. I am speeding up the my nixie making attempts ;-) Dalibor Dne 19.1.2013 18:15, Jon napsal(a): On Saturday, January 12, 2013 5:25:46 PM UTC, kay486 wrote: I have just found this and im really curious how high will it go! (no

RE: [neonixie-l] Re: 9x Z568M found on ebay

2013-01-19 Thread Dalibor Farný
Search for this item number: 251212723827 Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 19.1.2013 17:50 Tidak Ada offl...@zeelandnet.nl napsal(a): ** Lising seems to be removerd, or the link does not worrk correct eric -- *From

Re: [neonixie-l] Re: 9x Z568M found on ebay

2013-01-19 Thread Dalibor Farný
All bidders seem to be ok, bidding on collectibles. The winner is probably from Germany - bidding in german categories. The only suspicious thing here is that two high bids uses the same pattern, $X.150, but that could be just a strategy known among experienced ebay users.. Dalibor Farný http

Re: [neonixie-l] Re: Connector from glass to vacuum system

2012-11-02 Thread Dalibor Farný
the pirani one? This would eliminate possible leaks on other parts of system.. Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 2.11.2012 18:39 jb-electronics webmas...@jb-electronics.de napsal(a): Hello Ron, I will keep looking for a more suitable valve

Re: [neonixie-l] Re: Weston book on ebay

2012-10-31 Thread Dalibor Farný
Hello, those interested in this book, send me a private email, I will share a scanned PDF.. Dalibor Dne 30.10.2012 20:40, Instrument Resources of America napsal(a): All I have to offer, is a PDF copy of Cold Cathode Tubes, by J.B. Dance, if you'd like a copy of that. Ira. On 10/30/2012

Re: [neonixie-l] Connector from glass to vacuum system

2012-10-29 Thread Dalibor Farný
the system is leak tight? Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 28.10.2012 17:36 jb-electronics webmas...@jb-electronics.de napsal(a): Hi folks, I received my needle valve yesterday and improved my vacuum system. It works nicely: I can evacuate the system down to about

Re: [neonixie-l] Re: My first two-digit Nixie tube!

2012-10-19 Thread Dalibor Farný
Hello! By the way, how do You measure the pressure in the system? You mentioned the glow lamp is filled on 15mBar... Could You send a photo of the system You use for pumping and filling the glow lamps? The capacitor welder You have will work well, it is not suitable for welding materials

Re: [neonixie-l] Re: My first two-digit Nixie tube!

2012-10-18 Thread Dalibor Farný
some progress on my glass lathe, I should be able to rotate the stationary chuck soon.. Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 18.10.2012 10:55 fixitsan chefin...@gmail.com napsal(a): First of all, well done ! Good work :) I know the digits are made of dumet

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-30 Thread Dalibor Farný
. As John wrote, I found a supplier in Germany with nice 1mm alumina spacers, but one piece would cost around 3 EUR :-) little expensive.. Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 30.9.2012 4:33 dylan roelofs doktorb...@gmail.com napsal(a): Hey again John, Just get

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-30 Thread Dalibor Farný
However, if I'm making my own nixies, I'd be interested in making them visibly distinct from existing ones. If I want a CD-66, I can just go buy one (unless I want a CD-66 with 30mm digits). If I want a nixie with Böcklin or Klingon digits, I'll have to make my own. Thats it, I plan (faaar

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-29 Thread Dalibor Farný
the photolitography devices are original pieces? Industry made nixie's metal parts were made using this? I will send You 0.1mm stanless steel sheet to do another test if You want, just send me your address to my email. Could You please send a photo of assembled device? Sorry for so many demands :-) Dalibor

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-28 Thread Dalibor Farný
Instead of starting with existing nixies, I've been playing with generating cathode graphics using computer fonts. This one is just a test, I'd probably want to use a lighter typeface for real nixie cathodes: it is not so easy, the total surface of each digit should be constant to achieve

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-27 Thread Dalibor Farný
waswaste of time :-( the new one can be adjusted, tungsten-steel welds are now really easy :-) Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 27.9.2012 5:17 jb-electronics webmas...@jb-electronics.de napsal(a): Thanks Michel, I am planning to do all kinds of glow lamps before

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-27 Thread Dalibor Farný
Hello, Thanks, I scanned numbers from z566m, so 30mm. I plan to start on 40mm numbers, and then go higher :-) Have You received my email in czech yesterday? Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 27.9.2012 12:37 kay486 luckyl...@gmail.com napsal(a): Oh wow

Re: [neonixie-l] Re: Nixie tube making: first glow lamp up and running

2012-09-27 Thread Dalibor Farný
the seals :-) I bought a cheap ($25) acetylene-oxy torch, I am using it with gas-oxy, it works well! Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 27.9.2012 13:28 jb-electronics webmas...@jb-electronics.de napsal(a): Hi, wow, that looks good. I am trying to make smaller

Re: [neonixie-l] Preparing eco lightbulb

2012-09-13 Thread Dalibor Farný
Excellent, Where does the machije from the third video comes from? It doesnt look as a DIY :-) How did You manage to get the lead in wires? I was absolutely unsuccessful in dealing with companies from Asia.. Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 13.9.2012 8:00

Re: [neonixie-l] Re: RS232 line driver

2012-08-24 Thread Dalibor Farný
The best way is to use rs232 to uart converter ($3 or so on ebay), You just plug it into pc and directly connect to rxd and txd of your MCU. This is cheap and easy solution. The converter itself uses a max232 IC to change signals from rs232 to TTL. Dalibor Farný http://dalibor.farny.cz sent from

Re: [neonixie-l] Noble gases for selling

2012-08-01 Thread Dalibor Farný
Hello Alek, Thanks for offer, that price is still quite high, I can buy an aluminium bottle with 12 liters of neon for around $70, it is also easier to connect it to my vacuum system. Regards, Dalibor Farný http://dalibor.farny.cz sent from Samsung Galaxy Pad Dne 30.7.2012 5:58 Alek onet

[neonixie-l] Alumina as insulation in tubes

2012-06-30 Thread Dalibor Farný
Hello guys, I am looking for any information about how the alumina compound for vacuum tubes is prepared.. It is used to insulate electrodes (what should not glow) and also support some joints inside the tubes. It look like a white ceramics.. Alumina is not soluble in water/ethanol etc.. so some

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
Hi Dieter, I don't see any flashed metal in B-5025, just some stripes of metal on the top. What I understand under term flashing getter: Flash gettering means, chemically active, comparatively volatile metals-mostly metals of the alkaline earth group are evaporated by heating their supports at

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
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

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
Important info! Thanks for that! Dalibor 2012/6/26 Alek onet 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

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
.**onet.plaleksander_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

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
Hi, thats the same with me, I also rather works with glass than write on web ;-) I am making exactly what You wrote - simple glow lamps, filled by argon. I seal them and run them as long as possible. I make one with pressure just enough for the glow to cover all the cathode evenly, stainless

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
I forgot, I bought small glassblowing torch, oxy-gas, it is huge difference compared to hardware torch. If You have some spare money, go for it.. You can set the flame to heat just a small area (5mm diameter) and so... Dalibor 2012/6/26 jb-electronics webmas...@jb-electronics.de Hi, Do You

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
Hi, for what do You need needle valve? And how much does that costs? I use common glass high vacuum valves.. I am going to build an oven according to: http://www.teralab.co.uk/Glass_Blowing/Annealing_Oven/Annealing_Oven_Page1.htm Now I use a box with vermiculite ($10), it works surprisingly

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
Making a glass vacuum system (filling manifold) is quite easy with glassblowing torch and blowhose. I tried several T-joints and when I was satisfied with function (look could be better) I started to make a glass system. I am not decided how to connect it to vacuum pump, I realised, that silicone

Re: [neonixie-l] Re: nixie makers: getters

2012-06-26 Thread Dalibor Farný
I would be afraid that when You want to change anything on your metal flange system, You have to buy another parts, have to search for them etc.. On glass system You can change everything yourself, it is cheap. And once the connection in glass is made, You can be sure it is vacuum tight (it is

Re: [neonixie-l] Re: nixie makers: getters

2012-06-25 Thread Dalibor Farný
Hi Dan! how many pieces? I am thinking about one bag (500pcs). btw: any progress in your setup? Dalibor 2012/6/25 AndrakondrA (Daniil) andrakon...@gmail.com Dalibor Hi. I'm definitely interested!!! Daniil. On Monday, June 25, 2012 10:21:36 AM UTC-8, Dalibor wrote: Hello guys, I've

Re: [neonixie-l] nixie makers: getters

2012-06-25 Thread Dalibor Farný
Hi Alek, these are 10mm in diameter and 3mm height. Could You provide a photo or sizes of your getters? I would be interested in buying some.. Thanks, Dalibor 2012/6/25 Alek onet aleksander_zaw...@poczta.onet.pl Dalibor, could you show your getters? I need small getters. During trashing

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