[neonixie-l] Why are these Burroughs 6844A so expensive?

[Alic]

Hello,
Can someone explain to me why these nixies are so expensive?
http://www.ebay.com/itm/Vintage-Pair-Burroughs-Nixie-6844A-13-Pin-Readout-Tube-6816-NOS-/331913365012?hash=item4d47940614:g:1fQAAOSwqfNXjqdf

Is it the date? 

Burroughs 6844A aren't exactly rare if I'm not mistaken and the markings on 
these aren't perfect either.
http://dbtubes.com/en/burroughs-vacuum-tubes/3561-6844a.html

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[neonixie-l] Re: Nixie Clocks

[Alic]

Hi,
Wow! Very beautiful clocks!
I love the IN-1! If you make an Instructable for this one, I will build it!

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[neonixie-l] Blue Dream Won't Power

[Alic]

Hello,
Which Blue Dream do you have?
The IN-18 or the small one?

For the small one there should be a test point TP1 for the high voltage (180V).
The rectified input voltage and the 5V can be checked on IC2 (the 7805 or 
equivalent IC).

On the IN-18 there are separate test points for 12V, 5V and 170V.

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Re: [neonixie-l] Re: Take a look at this....

[A.J. Franzman]

Correction, one can use diamagnetism (opposing ferromagnetism) to achieve 
stable, static magnetic levitation in a gravitational field. Paramagnetism 
is merely a weaker form of attraction, so it won't work. Diamagnetism is 
the opposite; diamagnetic materials weakly repel magnets rather than 
attract to them.

On Thursday, July 21, 2016 at 7:14:24 PM UTC-7, jrehwin wrote:
>
>
> Earnshaw's theorem actually states that it's impossible to use static 
> magnets to levitate no matter how you create the field without some 
> supporting surface touching the levitating surface at some position (like a 
> pole) which of course doesn't count as levitation. You have to use 
> active stabilisation with electromagnets.
>
>
> It can be done using paramagnetism, but the sweet spot is pretty small.
>
> - John
>
>

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Re: [neonixie-l] Re: Take a look at this....

[John Rehwinkel]

> Earnshaw's theorem actually states that it's impossible to use static magnets 
> to levitate no matter how you create the field without some supporting 
> surface touching the levitating surface at some position (like a pole) which 
> of course doesn't count as levitation. You have to use active stabilisation 
> with electromagnets.

It can be done using paramagnetism, but the sweet spot is pretty small.

- John

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Re: [neonixie-l] Take a look at this....

[gregebert]

>
>
> For some years I got the idea to build a digital clock working with 
> relay’s.
>

What about using bi-stable latching relays ? They should not require any 
power, except when switching.
Digikey sells small telecom relays for less than $4 (US).

I think it would be a really cool project; not just the design challenge 
but also the various clicking. 

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Re: [neonixie-l] Take a look at this....

[Jeff]

I also would like to see an in-8-2 version and would be willing to pay a little 
more for them.

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[neonixie-l] Re: Take a look at this....

[ZY]

Earnshaw's theorem actually states that it's impossible to use static 
magnets to levitate no matter how you create the field without some 
supporting surface touching the levitating surface at some position (like a 
pole) which of course doesn't count as levitation. You have to use 
active stabilisation with electromagnets.

On Thursday, 21 July 2016 15:02:34 UTC-4, threeneurons wrote:
>
>
> Just as a clarification:
>
> 1) No power required for levitation
>

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Re: [neonixie-l] Take a look at this....

[Tony Adams]

5-600mA at 12V so around 6-7W allowing for PSU efficiency.

On Thursday, 21 July 2016 22:32:23 UTC+1, Tidak Ada wrote:
>
> Any idea about the power consumtion?
>
> For some years I got the idea to build a digital clock working with 
> relay’s.
>
> Calculating the power consumption let me decide to stop the project.
>
> A clock isn’t only a conversation piece It has to be a reliable time 
> indicator for 24/7
>
>  
>
> eric
>
>  
>
> *Van:* neoni...@googlegroups.com  [mailto:
> neoni...@googlegroups.com ] *Namens *Quixotic Nixotic
> *Verzonden:* donderdag 21 juli 2016 19:37
> *Aan:* neoni...@googlegroups.com 
> *Onderwerp:* Re: [neonixie-l] Take a look at this
>
>  
>
>  
>
> On 21 Jul 2016, at 16:43, Nicholas Stock wrote:
>
>
>
>
> https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock
>
>  
>
> I've seen one or two of my nixie clocks levitate, but only when my wife 
> has decided to clean my work table and has moved an unhoused example. It's 
> usually followed by some robust Anglo-Saxon. A small price to pay and it 
> does not cost £35,000.
>
>  
>
> John S
>
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> .
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RE: [neonixie-l] Take a look at this....

[Tidak Ada]

Any idea about the power consumtion?

For some years I got the idea to build a digital clock working with relay’s.

Calculating the power consumption let me decide to stop the project.

A clock isn’t only a conversation piece It has to be a reliable time indicator 
for 24/7

 

eric

 

Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens 
Quixotic Nixotic
Verzonden: donderdag 21 juli 2016 19:37
Aan: neonixie-l@googlegroups.com
Onderwerp: Re: [neonixie-l] Take a look at this

 

 

On 21 Jul 2016, at 16:43, Nicholas Stock wrote:





https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock

 

I've seen one or two of my nixie clocks levitate, but only when my wife has 
decided to clean my work table and has moved an unhoused example. It's usually 
followed by some robust Anglo-Saxon. A small price to pay and it does not cost 
£35,000.

 

John S

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[neonixie-l] Re: Take a look at this....

[gregebert]

...and if I had six of Dalibor's tube in a clock, I certainly wouldn't risk 
it floating-away and crashing onto the ground. I can imagine all sorts of 
scenarios where mag-lev can go wrong with an unrestrained object.

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[neonixie-l] Re: Take a look at this....

[Jeff Walton]

It's not an issue with Dalibor's tube.  It is beautiful!  I have no 
interest in a one digit clock.

On Thursday, July 21, 2016 at 1:51:08 PM UTC-5, Tony Adams wrote:
>
> Thanks for the comments everyone. A serious question though, would anyone 
> consider it worth adding an IN-8-2 option for example? I'd expected anyone 
> wanting a good looking nixie would have gone for Dalibor's tube but sadly 
> it hasn't been as popular as I'd hoped.
>

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RE: [neonixie-l] Take a look at this....

[Jeff Walton]

To me, the choice of tubes is a real drawback in terms of appearance.  The 
upside down twos for the numeral “5” is one of the best examples of how some of 
the Russian tubes tried to go cheap in terms of production when they really 
saved nothing.  The resulting font set is not what people want.  Pick a 
different tube (although I understand the choices are limited) which is 
aesthetically more pleasing.  IN-8-2 is readily available and not so different 
in mass.  

 

As far as Dalibor’s tube version – it’s not the tube that’s the problem.  The 
tube is absolutely beautiful!  I just don’t find any fascination in a one digit 
clock.

 

Jeff

 

 

 

 

From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On 
Behalf Of gregebert
Sent: Thursday, July 21, 2016 11:26 AM
To: neonixie-l
Subject: Re: [neonixie-l] Take a look at this

 

Is this the first product using Dalibor's nixies ? 

 

Interesting idea, but for me the "upside-down-2" nixies in the multi-tube 
version kill the aesthetics.

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Re: [neonixie-l] Re: Take a look at this....

[Jon Jackson]

I would be interested in an IN-8-2 option.

Jon

On Thu, Jul 21, 2016 at 12:51 PM, Tony Adams  wrote:

> Thanks for the comments everyone. A serious question though, would anyone
> consider it worth adding an IN-8-2 option for example? I'd expected anyone
> wanting a good looking nixie would have gone for Dalibor's tube but sadly
> it hasn't been as popular as I'd hoped.
>
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Re: [neonixie-l] Re: Take a look at this....

[Nicholas Stock]

That's a good thought...I'm sure our feline friends would find them
*fascinating*

On Thu, Jul 21, 2016 at 9:58 AM, Dekatron42 
wrote:

> I wonder how well it goes with cat owners, maybe you should use a glass
> dome to cover it so your cat doesn't start to play with it
>
> /Martin
>
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[neonixie-l] Re: Australian Nixies!!

['threeneurons' via neonixie-l]

I'm currently trying to get my brass working skills up. Just good enough 
for trim, and few accents.

The guy that has an eye for brass is Paul Parry (
http://www.bad-dog-designs.co.uk):

Even with a lot of practice, by the time I'm a quarter as good as him, I'll 
be dead for 20-years !

A couple of examples of his work:

 



Go to his site (see above). He's made a lot of clocks !



On Thursday, July 21, 2016 at 1:46:06 AM UTC-7, Roddy Scott wrote:
>
> I like that design, very simple but elegant.
>
> Wood shows off Nixies so well, add some brass and it is a winning 
> combination.
>
> The clock I am building just now features your Dekatron Spinner board with 
> an OG-4
>

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[neonixie-l] Re: Take a look at this....

[Nick]

Have a look at 4HV - lots of working projects on there including wireless power 
transfer using Royer oscillators - built one myself about 5 years ago when 
doing a lot if Tesla Coil stuff...

Nick

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Re: [neonixie-l] Re: Take a look at this....

[Michail1 via neonixie-l]

I don't think the issue is Dalibor's tube.
The issue is Single Tube vs 4 Tubes.
 
 
Yes, I like the IN-8-2 Option or the ability to change between the tubes  
(or simply easily replace tubes as needed).
 
Michail  Wilson
206-920-6312  

 
In a message dated 7/21/2016 11:51:10 A.M. Pacific Daylight Time,  
t...@lasermad.com writes:

Thanks for the comments everyone. A serious question though,  would anyone 
consider it worth adding an IN-8-2 option for example? I'd  expected anyone 
wanting a good looking nixie would have gone for Dalibor's  tube but sadly 
it hasn't been as popular as I'd hoped.

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[neonixie-l] Re: Take a look at this....

['threeneurons' via neonixie-l]

> As for a "one-off", home made project,... No power is required 
> inductive power transfer. ...
>

Just as a clarification:

1) No power required for levitation

2) Inductive power transfer, to light up the nixies, and run the clock 
circuit. Only need in the ballpark of 5W. 

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[neonixie-l] Re: Take a look at this....

['threeneurons' via neonixie-l]

>
>
> https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock
>

£35,000 is a rather modest amount to get production running. If he needs 
plastic bits, the cost of dies are a tad steep. Also getting PCBs 
assembled. I don't think he's looking at hand soldering a bunch of boards, 
with sm parts, on them.

As for a "one-off", home made project, this is now very doable. With the 
abundance of low cost rare earth magnets, expect to see a lot of levitating 
gadgets soon. If done right, you only need the magnets placed and held, so 
they make a properly shaped field. No power is required. I'm currently 
running some experiments with Royer oscillators. These seem to work quite 
well for inductive power transfer. Much better than the H-bridge, I used on 
my old "Propeller Santa II", made about 10 years ago.

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[neonixie-l] Re: Take a look at this....

[Tony Adams]

Thanks for the comments everyone. A serious question though, would anyone 
consider it worth adding an IN-8-2 option for example? I'd expected anyone 
wanting a good looking nixie would have gone for Dalibor's tube but sadly 
it hasn't been as popular as I'd hoped.

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Re: [neonixie-l] Take a look at this....

[Tony Adams]

The only photoshopping was to touch up dust spots and colour balance, the 
height is real and you're welcome to come and look at one in operation.

On Thursday, 21 July 2016 19:39:12 UTC+1, gregebert wrote:
>
> Are any of you suspicious about the levitation height in the picture ? My 
> gut feeling is perhaps a few millimeters with a strong magnetic field. I 
> have a pair of circular magnetron magnets, and I can get roughly the height 
> pictured, but my magnet is much lighter than a nixie clock.
>
> One can only guess how much photoshop work is done for kickstarter 
> campaigns.
>

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Re: [neonixie-l] Take a look at this....

[gregebert]

Are any of you suspicious about the levitation height in the picture ? My 
gut feeling is perhaps a few millimeters with a strong magnetic field. I 
have a pair of circular magnetron magnets, and I can get roughly the height 
pictured, but my magnet is much lighter than a nixie clock.

One can only guess how much photoshop work is done for kickstarter 
campaigns.

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Re: [neonixie-l] Take a look at this....

[Quixotic Nixotic]

On 21 Jul 2016, at 16:43, Nicholas Stock wrote:

> https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock

I've seen one or two of my nixie clocks levitate, but only when my wife has 
decided to clean my work table and has moved an unhoused example. It's usually 
followed by some robust Anglo-Saxon. A small price to pay and it does not cost 
£35,000.

John S

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[neonixie-l] Re: Take a look at this....

[Dekatron42]

I wonder how well it goes with cat owners, maybe you should use a glass 
dome to cover it so your cat doesn't start to play with it

/Martin

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Re: [neonixie-l] Take a look at this....

[Nicholas Stock]

I quite like the upside down 2'sspeaks to the frugality of the factory
operations of the time? Each to their own though! Dalibor's tubes do look
great.

On Thu, Jul 21, 2016 at 9:33 AM, Dylan Distasio  wrote:

> I agree, awesome project, but I wish he would have used another tube.
>
> On Jul 21, 2016 12:26 PM, "gregebert"  wrote:
>
>> Is this the first product using Dalibor's nixies ?
>>
>> Interesting idea, but for me the "upside-down-2" nixies in the multi-tube
>> version kill the aesthetics.
>>
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Re: [neonixie-l] Take a look at this....

[Dylan Distasio]

I agree, awesome project, but I wish he would have used another tube.

On Jul 21, 2016 12:26 PM, "gregebert"  wrote:

> Is this the first product using Dalibor's nixies ?
>
> Interesting idea, but for me the "upside-down-2" nixies in the multi-tube
> version kill the aesthetics.
>
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Re: [neonixie-l] Take a look at this....

[gregebert]

Is this the first product using Dalibor's nixies ? 

Interesting idea, but for me the "upside-down-2" nixies in the multi-tube 
version kill the aesthetics.

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Re: [neonixie-l] Take a look at this....

[Michail1 via neonixie-l]

Wow,
 
I want one (or two).  :)
 
Michail  Wilson
206-920-6312  

 
In a message dated 7/21/2016 8:43:11 A.M. Pacific Daylight Time,  
nickst...@gmail.com writes:

https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-cl
ock

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Re: [neonixie-l] Take a look at this....

['Grahame' via neonixie-l]

Yes, you sent the email already. Do you know where Tony is exactly?

G


On 21/07/2016 16:43, Nicholas Stock wrote:

https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock
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[neonixie-l] Take a look at this....

[Nicholas Stock]

https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock

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[neonixie-l] Re: NOS Nixie Lifetime

[Walter2]

Nixies do have a lifetime (stored), but it expresses itself slowly. Mainly, 
loss of gas pressure, I see this effect most often in panaplex displays 
(which are actually glued together), and in russian tubes, which seem to 
have a poorer lead seal at the base.  In every box of 50 russian tubes, I 
generally find one that is totally dead.  US made tubes seem to fare 
better, but older types, like the 6844A are now at about 60 years old, and 
it is common to see low gas pressure in them.  the symptom is increased 
voltage to strike, and sometimes poor digit coverage on the larger 
cathodes, or in the extreme case, nothing happens.  I have often seen tubes 
50 years old work perfectly, but equally, they also can be improved by 
cycling them through all the digits a few times.  Old used tubes are more 
problematic, any unused digits often are poisoned, and have to be carefully 
restored.  Like any "vacuum" tubes, their success is dependent on the 
quality of the glass seal, whether to hold in gas or vacuum.  rough 
handling of the leads or shock are the primary failure mechanisms to break 
the seal.

We have built a test jig to run and cycle all the tubes along with a 
variable supply and series resistor that runs up to 300V.  this allows us 
to find tubes with low gas, poisoned cathodes, base flash-over and other 
problems, plus it can be used to re-condition tubes and bring them back to 
optimal performance. I would suggest something like this if you intend to 
do a lot of nixie experimenting, as it allows you to really see the tubes 
work under different voltages and currents, and be sure the tubes are 
suitable before attempting a build. this is especially useful if the tubes 
solder in.

all the best,
walter  (sphere research corp)

On Wednesday, 20 July 2016 22:58:49 UTC-7, Steve Scorn wrote:
>
> Hi group,
>
> Does an unused NOS Nixie have a serviceable lifetime? I'm aware of cathode 
> poisoning etc when powered on, but if correctly stored, would a NOS Nixie 
> be just as good in 50 years as today?
>
> Thanks for the help.
>
> Steve
>

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[neonixie-l] Re: NOS Nixie Lifetime

[gregebert]

My first nixie clock is built from tubes manufactured in 1963 (Burroughs 
5092, my favorite). They were salvaged from a surplus RF generator I bought 
in 1975 (sorry, no pics but it looked & sounded awesome when powered-up), 
then sat in my open-air junkbox until 2011. Judging by the small amount of 
dust inside the RF generator, it couldn't have been powered-on for more 
than a few hundred hours, so these tubes are basically NOS. The clock has 
been in-service 24/7 almost 5 years now, with no hint of degradation. Of 
all my nixie tubes, this group of 6 is the only set for which I have solid 
historical info.

I've built 7 other clocks since then, with all sorts of tubes purchased on 
Ebay, and only 1 tube out of 55 has failed. 

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[neonixie-l] Re: FS: IV-4, IV-12, IV-17, IV-26

[Yuriy Ovchinnikov]

Actual list:

IV-1 – 39 pcs.,
IV-3A – 142 pcs.,

IV-4 – 145 pcs. for $2,
IV-4 used – 111 pcs. for $1,
IV-6 – 126 pcs.,
IV-6 used – 19 pcs.,
IV-8 – 191 pcs.,

IV-11 – 120 pcs. for $1,
IV-11 used – 4 pcs. for $0.5,
IV-12 – 221 pcs.,

IV-17 – 66 pcs. for $1.5,
IV-20 – 2 pcs.,

IV-22 – 87 pcs.,
IV-26 – 700 pcs. for $2,
IV-28А – 1 pcs.,
IVL-1-7/5 – 2 pcs.,

IVL-2-7/5 – 24 pcs.,

IVLShU-1-11/2 – 39 pcs.,

IN-1 – 359 pcs. for $1,

IN-2 – 395 pcs. for $1.8,
IN-3 – 199 pcs.,

IN-4 – 10 pcs. for $2,
IN-8 – 2 pcs. for $5,
IN-9 used – 11 pcs. for $3,

IN-12A – 60 pcs. for $2,

IN-12B – 130 pcs. for $2,

IN-13 – 3 pcs. for $3,
IN-14 – 148 pcs. for $5,

IN-14 used – 210 pcs. for $2.5,

IN-15А – 19 pcs. for $1,
IN-15B – 14 pcs. for $1,

IN-16 – 7 pcs. for$5

IN-16 used – 134 pcs. for $2.5

IN-17 – 51 pcs. for $3,

IN-18 – 1 pc. for $35

IN-19A used – 1 pc.,

IN-19B used – 1 pc.,

IN-19V – 2 pcs. for $2,

Z570M – 1 pc.

Z570M used – 46 pcs.

Z5730M used – 3 pcs.

четверг, 10 сентября 2015 г., 7:39:43 UTC+3 пользователь Yuriy Ovchinnikov 
написал:
>
> FS: 
> IV-4 - 11 pcs., 
> IV-12 - 73 pcs., 
> IV-17 - 13 pcs., 
> IV-26 - more 800 pcs.
> Anyone want?
>

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[neonixie-l] Re: NOS Nixie Lifetime

[Roddy Scott]

Hi Steve,

Considering that most of the NOS Nixies that we use range from 30 to 40 
years old and are mainly reliable enough to last for about 30,000 hours 
using cathode poisoning prevention, I would not think that it would be a 
problem in general. 

Correct storage prior to acquisition would ensure a longer lifetime but if 
incorrectly stored this could lead to premature failure.
Most of the Nixies I have show some oxidation on the pins but it does not 
affect their performance. Cleaning this off, as mentioned in a previous 
post, could lead to the danger of the seal being compromised and this is 
the main thing that will make a tube fail or drastically shorten its 
lifespan.

I store my Nixies in bubble wrap and in a wooden box with dessicant 
'pillows' which stops any moisture affecting them as Ireland is not the 
driest of countries! If you live in an arid area then the dangers from 
moisture are reduced. 

Like everything else, if you take care of it, it will last longer and this 
applies to Nixie tubes as well.


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[neonixie-l] Re: Australian Nixies!!

[Roddy Scott]

I like that design, very simple but elegant.

Wood shows off Nixies so well, add some brass and it is a winning 
combination.

The clock I am building just now features your Dekatron Spinner board with 
an OG-4

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