[neonixie-l] Re: Dekatrons for sale shortly

[Roddy Scott]

I am posting my Nixie Clocks Email for members to get in touch with regards 
to the Dekatron venture. 

Please, no introductions to Russian or Asian wives, mine would get quite 
annoyed and definitely no spam!

noticksnotocks*AT*gmail.com - you know what to do here.

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Re: [neonixie-l] Re: Dekatrons for sale shortly

[Dylan Distasio]

Just as a gauge of demand, I'm interested.  Thanks for your efforts!

On Jun 19, 2017 6:52 PM, "Roddy Scott"  wrote:

Once I have the stock to hand I will publish a list here with the details
and quantities available. Initially it will be small quantities but if the
demand is there then I will endeavour to get greater numbers.

As to how it will work?

I think the fairest way is to make the list public and have a dwell time of
a couple of days for as many members to peruse it as possible as we all
live in different time zones and visit the forum at different rates.
Ideally it would then be on a first come, first served basis as people
would then be able to have their 'wish lists' made by then and I will sort
it out from there.

I am in Ireland so I would post the details at 12.00 GMT a couple of days
after receipt and checking what is available for sale, all being well. As
to packaging, I am looking at small mailing boxes with bubble wrap around
the contents so postage would be at materials cost plus the relevant postal
rates for the destination bound.


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[neonixie-l] Re: Dekatrons for sale shortly

[Roddy Scott]

Once I have the stock to hand I will publish a list here with the details 
and quantities available. Initially it will be small quantities but if the 
demand is there then I will endeavour to get greater numbers.

As to how it will work? 

I think the fairest way is to make the list public and have a dwell time of 
a couple of days for as many members to peruse it as possible as we all 
live in different time zones and visit the forum at different rates. 
Ideally it would then be on a first come, first served basis as people 
would then be able to have their 'wish lists' made by then and I will sort 
it out from there.

I am in Ireland so I would post the details at 12.00 GMT a couple of days 
after receipt and checking what is available for sale, all being well. As 
to packaging, I am looking at small mailing boxes with bubble wrap around 
the contents so postage would be at materials cost plus the relevant postal 
rates for the destination bound.


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Re: [neonixie-l] Dekatrons for sale shortly

[Terry S]

Oh come on, we ALL need dekatrons. Some of us just don't know it yet.
Terry

On Monday, June 19, 2017 at 3:25:03 PM UTC-5, Paolo Cravero wrote:
>
> That's Great Roddy.
> Have you thought of a way to assign tubes to interested persons? FCFS 
> basis? Name in the hat? Limited quantity per person?
>
> Paolo, not needing a dekatron (yet) J
>

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Re: [neonixie-l] Dekatrons for sale shortly

[Paolo Cravero]

That's Great Roddy.
Have you thought of a way to assign tubes to interested persons? FCFS
basis? Name in the hat? Limited quantity per person?

Paolo, not needing a dekatron (yet) J

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Re: [neonixie-l] Re: Raspberry PI controlled Nixie display

[gregebert]

Thought I would post a follow-up regarding a RasPi as a nixie controller.

So far, using a RasPi Zero W for controlling my latest nixie clock (8-tube 
b7971) has far-exceeded my expectations:

   - No 'helper' FPGA is needed; there is far more than enough horsepower 
   in the Pi to handle all of the compute, timekeeping, and serial 
   communications
   - Timekeeping is accurate; the Pi periodically syncs to a time-source on 
   the internet (no idea where). Perhaps it's from my router, which gets the 
   time elsewhere.
   - Display updates are done once per second. I have never observed my 
   display 'jump' or 'stall' +/- 1 second based on the random alignment 
   between realtime, and when the clock software updates the display. I did 
   not add any code to attempt to synchronize to realtime.
   - CPU utilization is averaging 3-4%, even when running a VNC server, 
   plus all of the Linux housekeeping tasks. There are periodic spikes of ~40% 
   each second when the clock software does it's work. No significant thermal 
   generation (less than 10 degrees F as measure with infrared thermometer)
   - Using a cheap passive IR (PIR) sensor has allowed me to shut-down the 
   tubes most of the time; the sensor is sensitive enough that I really cant 
   sneak-up on my clock without it turning on. Nor is it falsely triggering.
   - GPIO programming with WiringPi is fairly easy; there were some quirks 
   that I found and fixed when reading a digital input. Also some minor 
   documentation issues about pin-naming.
   - Being able to remotely program without attaching/removing cables, 
   power-cycle, etc is very handy. I use 'C' because it's compiled, hence 
   faster execution versus python, perl, etc.
   - Only drawback so far is the startup-time (linux boot), which is just 
   under a minute. I have not yet added the clock software into the bootup 
   process so that it auto-starts on power-up; should be easy to do in crontab 
   ? (I've done it before for a remote server; just cant remember where).
   - Without an attached RTC module, timekeeping relies on my internet 
   service and WiFi running. I have thought about adding an RTC module as a 
   backup, but it's low priority.

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[neonixie-l] Dekatrons for sale shortly

[Nick]

This is great. Absolutely fine.

Nick (moderator)

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[neonixie-l] Dekatrons for sale shortly

[Roddy Scott]

Folks,

I have been negotiating with Billington Valves in regards to their Nixie 
and Dekatron stocks and I would like to announce that I will soon have 
quite a few available for sale.
These will include GC10B,  GC10C,  GC10-4B, GR10A, GS10D,  GC10D-tbc, 
GD150a, GS12D Dekatrons in NOS and slightly used condition with ETL and 
Baird Atomic amongst them.

In regards to the Nixie tubes I am waiting on conformation of available 
stock.

The reason I am entering into this with B.V. is that they normally do not 
deal in small quantities such as we require for clocks and displays and 
Martin of Billington reckons it would be a good idea that I could make 
available their stocks to those who would require small quantities.

I noted the prices being charged for GC12s in Ebay and I can assure you 
that prices will not be anywhere near that. I am not entering into this as 
a commercial venture but in the vein of making them available for members 
of the forum and clock builders. They will not be appearing on Ebay for 
auction but for direct sale from myself as long as the stocks last.

A quick conversion of prices would make the GC10s around $18 and the GC12s 
around $22 excl postage.

I am hoping to convert one of Mike's Dekatron Spinner units into a tester 
for them and hopefully be able to check each tube for operation.

If this post contravenes the forum rules then could an Admin please delete 
it, if not, I hope to let you know shortly what quantities of each are 
available.

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Re: [neonixie-l] Re: Well I tried, big tubes on ebay this am

[Nicholas Stock]

Good to know. I will refrain from building any fancy clocks with them then!

On Sat, Jun 17, 2017 at 5:29 AM, MichaelS  wrote:

> Yeah, I've had similar experience with these tubes.  'think they were sold
> as standard life tubes in the brochures.  The rounded face is a warning...
>
> 5092's are fine tubes though.
>
> On Friday, June 16, 2017 at 11:00:35 AM UTC-5, gregebert wrote:
>>
>> Be careful with 5031's.I've bought a few in the past from different
>> sources, and half of them had defects, most likely gas leaks.
>> They did not respond to depoisoning attempts at high current. Oh, they
>> got really warm. Someday I hope to melt one. Did that before with a 0A2 and
>> it was hilarious as it shrivelled.
>> I believe the 5031 is Burrough's 1st-generation nixie.
>>
>> I've bough many 5092's in various condition from different sources. Have
>> never found a bad one, and have never had one fail on me.
>>
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