Re: [neonixie-l] VFD pen

[Dylan Distasio]

Very cool, but holy $hite, that's an expensive pen!

On Wed, Mar 16, 2016 at 11:10 AM, Petro Vodopyan 
wrote:

> Hello,
> Wanted to share an interesting finding - IV-21 VFD pen:
> http://gelfman.ch/en/ Probably it was already posted here...
>
>
> Petro
>
>
>
>
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Re: [neonixie-l] Have few questions about the NIXIE watch...

[A_Nonamus]

On Friday, March 11, 2016 at 9:05:51 AM UTC-8, gregebert wrote:
>
> Unfortunately, I rushed the final assembly on my watch-case, and one of 
> the battery charging-contacts is loose, so I cant recharge it. Oh yeah, the 
> case is glued shut so I have to cut apart the handmade plexiglass case that 
> took many hours to build & polish. Gr..
>

History repeats itself... Riehl Synchronar ring any bells? 

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Re: [neonixie-l] Used or NOS?

[Dekatron42]

As you say it looks like the tips are open, they certainly aren't melted at 
the tip like the four separate ones.

It would be interesting to see the result if the ZZ1030 was checked with a 
plasma lamp, that would show if there is neon gas in the envelope or just 
in each voltage regulator tube.

/Martin

On Wednesday, 16 March 2016 12:49:26 UTC+1, jrehwin wrote:
>
>
> OK... so why a getter in this one?  All the little NEON tubes are each 
> already sealed.
>
>
> I don't think they're sealed.  I think their tips are open to the main 
> enclosing envelope.
>
> - John
>
>
>

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[neonixie-l] Re: Used or NOS?

[Alic]

Thanks for sharing your knowledge with me, everyone!I'm learning a lot 
here, it's very interesting!
Getter :It's funny : Just yesterday I saw a photo of the getter activation 
on Dalibor's Facebook page!
Ageing / testing :Ok, so it is in fact almost impossible to tell the 
difference between a NOS tube and a lightly used one.In the future I will 
simply inspect the glass in front of the numerals and if the sputtering is 
acceptable the tube will be ok for me.
Deposit on the side :Even though mercury seems to be the main culprit, I 
think the sputtering from the wires, as mentioned above by Martin, can also 
be the cause in some cases.I have an old Z560M where the wire illuminates 
as well as the numeral (for all the numerals) : the sides, where the wires 
are near the glass, are completely "silvered"!Below is an example with and 
one without the deposit :

 


On other tubes I have a grey film on the glass following exactly the wires 
close to it.


Concerning the mercury in IN-12 tubes, is this what you can see in the 
photo below?



Is the round thing in the middle the mercury pill?
All 6 tubes I have from that batch show a thicker film in exactly the same 
spot (whitish in the photo, but it's reflecting).

Have a nice week-end,

Alic

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Re: [neonixie-l] Re: Why were dekatrons still manufactured as recently as 1992 ?

[Charles MacDonald]

On 16-03-18 03:12 PM, 'threeneurons' via neonixie-l wrote:


In "the West", most tube production, other than CRTs and microwave
magnatrons, ended ~1975.


Some receiving type tube production continued in the US for a while 
after that, but for Military use.  Other microwave tubes are/were also 
produced, even today satellites seem to use TWT transmitters.



--
Charles MacDonald Stittsville Ontario
cm...@zeusprune.ca  Just Beyond the Fringe
No Microsoft Products were used in sending this e-mail.

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Re: [neonixie-l] Used or NOS?

[JohnK]

Well, when I first got that valve I thought as you do. But have a look at that 
second photo.
And, because of a previous discussion after I sent the valve to Jeremy, we have 
had him look at it closely - he agrees; definitely solid glass at those cut off 
tips.
I have a second one somewhere but it is horribly buried so that isn't an option 
at the moment.

I had really wanted them to be open because I was interested in other 
conduction paths for certain connections if the whole things was gas filled. 
Haven't tried lighting it up with a proximity voltage or microwave.


jk


  - Original Message - 
  From: John Rehwinkel 
  To: neonixie-l@googlegroups.com 
  Sent: Wednesday, March 16, 2016 10:19 PM
  Subject: Re: [neonixie-l] Used or NOS?




OK... so why a getter in this one?  All the little NEON tubes are each 
already sealed.


  I don't think they're sealed.  I think their tips are open to the main 
enclosing envelope.


  - John





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Re: [neonixie-l] VFD pen

[Quixotic Nixotic]

Does the fact the site states 'Kickstarter Edition' imply there will be a 
different one? Mysteriously another batch of tubes will be found? I failed to 
locate it on kickstarter.

John S

On 16 Mar 2016, at 15:10, Petro Vodopyan wrote:

> Hello,
> Wanted to share an interesting finding - IV-21 VFD pen: http://gelfman.ch/en/ 
> Probably it was already posted here...
> 
> 
> Petro

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