Nice one. Whoops there goes my retirement plan! Ha ha..Cheers,NickSent from my iPhoneOn Oct 13, 2023, at 02:49, andybiker wrote:Hi Nick,With the half life of Krypton 85 and the amount left since 1983 (date on data sheet) you'd have to break at least 12,000 nixies at the same time.If I had that
Hi Nick,
With the half life of Krypton 85 and the amount left since 1983 (date on
data sheet) you'd have to break at least 12,000 nixies at the same time.
If I had that many and broke them, it would be a very bad day indeed.
On Thursday, October 12, 2023 at 4:04:06 PM UTC+1 Nicholas Stock
Paul, that's a great note...although if I broke 750 of them at one go, I'd
be more pissed at that than a little bit of Krypton85 in the air LOL.
On Thu, Oct 12, 2023 at 7:54 AM Paul Andrews wrote:
> There is a note about the safe handling and storage of tubes containing
> Krypton 85 at the
There is a note about the safe handling and storage of tubes containing
Krypton 85 at the end of this
page https://www.nixies.us/bwg_gallery/122p224/
On Wednesday, October 11, 2023 at 10:54:42 AM UTC-4 Nicholas Stock wrote:
> Well, alas, most of that is now Rubidium (Kr85 half life is about
Well, alas, most of that is now Rubidium (Kr85 half life is about 10.5
yrs), so you'll need to give those tubes a little extra push now... :)
Cheers,
Nick
On Wed, Oct 11, 2023 at 7:48 AM jb-electronics
wrote:
> PS: Make that "Krypton 85"
>
> On 2023-10-11 10:48 a.m., jb-electronics wrote:
>
>
PS: Make that "Krypton 85"
On 2023-10-11 10:48 a.m., jb-electronics wrote:
Interesting indeed! Could be, especially given the fact that some
Burroughts tubes have Radon 85 in them to help them ionize in the
dark. Seems to be the same idea? Jens
On 2023-10-09 9:43 p.m., cm...@zeusprune.ca
Interesting indeed! Could be, especially given the fact that some
Burroughts tubes have Radon 85 in them to help them ionize in the dark.
Seems to be the same idea? Jens
On 2023-10-09 9:43 p.m., cm...@zeusprune.ca wrote:
To:
neonixie-l@googlegroups.com, Rob B
On 2023-10-09 11:22, Rob B
To: neonixie-l@googlegroups.com, Rob B
On 2023-10-09 11:22, Rob B wrote:
When I was a kid [~50 yrs ago], I had several power strips with NE-2
indicators, where the indicator starting flicker and then eventually
failed. I noticed that when sunlight hit the NE-2s, they lit more
solidly:
Incomplete sentence...
> On Oct 9, 2023, at 4:09 PM, Mac Doktor wrote:
>
>
> Sadly, the alpha particles from
...an alpha source such as a household smoke detector won't make it though the
glass.
Terry Bowman, KA4HJH
"The Mac Doctor"
https://www.astarcloseup.com
“...the book said
> On Oct 9, 2023, at 3:23 PM, Jim KO5V wrote:
>
> As suggested, I think the photons from the lamp helped with the ionization
> just enough to allow the tube's segments to eventually light up enough to
> heal themselves.
I don't know about healing but light helps the gas to ionize. I would
My first nixie clock with 5092 tubes has been running since 2011. I use
+340VDC for the anodes, and of course the anode resistors are appropriately
increased to give the optimum 2.2mA of current.
So, why did I choose 340VDC when the mains here in the US are 120V RMS ?
This clock has no
I thought I had heard/read that lower voltage was better, though a cursory
search suggests that the rate of sputtering is nearly directly proportional
to current, so that makes sense, the only reason aside from arcing that I
could think of would be making the internal wires glow
On Sun, Oct 8,
Another note about firing voltage is that in general, using higher voltages for nixies, ie. >200V increases lifespan, assuming the proper anode resistor is used.On Oct 8, 2023, at 11:13 AM, Nicholas Stock wrote:I've noticed a few 7971's needing a couple of hours to fully illuminate after which
Hi Nick and Ira, and guus, and gregebert and Paul and anyone else I have missed,
Thanks for the replies. The light affecting the ionization was what puzzled me,
but a couple of you explained that, and it makes sense. I have a way to test
the tube on the bench, so maybe I can bring it back that
I've noticed a few 7971's needing a couple of hours to fully illuminate after which they're apparently very happy in the long term if in operation. Is this sign of a very small leak or something else? I'm not sure what to make of the 'gassy' term to be honestwere 7971's doped with Hg?NickSent
I’ve had some of these tubes that require a higher than normal voltage to
even trigger. Most people drive nixies at 170V, but this can be a marginal
trigger voltage for some tubes and completely insufficient for others such
as the GR10G https://www.nixies.us/bwg_gallery/gr10g/
Shining light
Can you do some bench-testing to see if the segments fully light with a bit
more voltage ?
I collected current-voltage (I-V) data on all my 7971's so I can check them
for aging effects.
On Sunday, October 8, 2023 at 6:01:55 AM UTC-7 guus.assm...@wolmail.nl
wrote:
> Hello Jim,
>
> If you
Hello Jim,
If you have a source of UV-light, that will do a good job.
Maybe an UV-Led beneath the tube will do the trick
BR/
Guus
> Op 07-10-2023 19:26 CEST schreef Jim KO5V :
>
>
> I have a B7971 that doesn't want to light up - the ends of some segments will
> glow, but none will
I have a B7971 that doesn't want to light up - the ends of some segments
will glow, but none will illuminate along their entire length. I have had
tubes in the past that were probably a bit gassy, and they cleaned up after
running for a few minutes to a few hours.
So, I put it into the "10
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