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
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,
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
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
&
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
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
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
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
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
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!
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
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
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
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
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
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
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
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
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
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
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
...@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
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
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..
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
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
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,
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.
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
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
--
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
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.
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
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
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
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
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
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
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
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
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
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
] 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
.
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
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:
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
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
..
.
...
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
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
:-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,
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
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
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
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
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
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
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:
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:
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
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
, 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
.
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
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
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
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
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
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
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
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
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
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
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
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
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
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
.**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
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
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
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
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
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
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
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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