[neonixie-l] Re: About high prices.. best things come cheap

2019-04-21 Thread Terry Kennedy 
On Sunday, April 21, 2019 at 2:38:01 PM UTC-4, SWISSNIXIE - Jonathan F. 
wrote:
>
> What i wanted to tell you with this, is that you not should feel bad or 
> sad about tubes that are at a high price currently. If you have time and 
> just keeping an eye on offers, one day you will find a very good deal for 
> sure.
>

This is very true, and not just tubes. I work on large (REALLY large) 
printers and had been looking for a second Epson SureColor P1000 (US 
$6495 "street" price") to accompany my first unit. There has been one on 
eBay for $5000 forever, sold as "new", but actually opened a few years ago, 
so no warranty. Most people won't buy one without a warranty due to the 
incredible price of replacement parts (a replacement printhead is $2500 + 
labor). I found a listing on eBay for under $1000 and contacted the seller 
to request a copy of the status (usage) and nozzle check pages. He said it 
was in a warehouse 250 miles away and didn't want to deal with it. I said 
"contact me again when you'll take $500" and didn't hear back. He listed it 
for $599, dropped to $399, and I placed a snipe for $500. I won it for 
$414: https://www.ebay.com/itm/153394241401

At that price it was worth it just for the ink in it (10 cartridges, 
$200-ish each if full). It turns out it had mostly-full cartridges and 
actually worked once I dragged it home (which involved taking it apart and 
loading it into a rental truck with a forklift - definitely not an approved 
method.

One big "issue" about the high prices might be social media. I have a 
> personal instagram account (not related to nixies) and i spot nixie tubes 
> quite often in the discover feed on technical pages.  [...] 
>
> Maybe one day this "hype" about some tubes will fade, and they will come 
> back to a normal level. Just be pacient and keep your eyes open for good 
> deals!
>

This is so true. Look at what happened to the price of IV-17 tubes when the 
IV-17 smartsockets were announced - I considered myself lucky at the time 
that I had around 1000 of them for an average of $1.50 each. They ran up to 
an insane $25 or so each until the furor died down. Now you can get them 
for $2.50 each. I'd "announce" a new product just to run the price up and 
then sell, except I'd be taking advantage of fellow hobbyists.

The B7971 was the same when the MOD-SIX came out. Prices initially 
stabilized in the $75 to $100 range, but that emptied out the readily 
available stock. Now that you can't get the MOD-SIX any more and the tubes 
are scarce, they're going for huge premiums. It may die down, it may not as 
there are now builders selling other clocks that use those tubes.

I remember when it was possible to purchase a NOS box of 25 
date-matched IN-18 for $10 to $15 a tube and thought that was high - now it 
looks like $60 is the "new normal". Yikes!

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Re: [neonixie-l] Tube database?

2019-04-21 Thread martin martin 
I will help too.   Did you try the site in Canada

https://www.sphere.bc.ca/


They have doc for most tubes also

On Sun, Apr 21, 2019 at 14:34 Nicholas Stock  wrote:

> Jonathan, if i can help with data entry let me know.
>
> Nick
>
> Sent from my iPhone
>
> > On Apr 21, 2019, at 14:16, SWISSNIXIE - Jonathan F. 
> wrote:
> >
> > Hi Jens,
> >
> > Nice to hear! I already made a concept on the project, i will upload it
> tommorow. Im also very familiar with large and even complex sql databases
> since this is part of my work.
> >
> > But such a project will only become great if there are people who are
> willing to help, mostly to either provide data or enter data.
> >
> > As terry wrote, the archived list also could be used and converted.
> >
> > --
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Re: [neonixie-l] Tube database?

2019-04-21 Thread Nicholas Stock 
Jonathan, if i can help with data entry let me know.

Nick

Sent from my iPhone

> On Apr 21, 2019, at 14:16, SWISSNIXIE - Jonathan F.  
> wrote:
> 
> Hi Jens,
> 
> Nice to hear! I already made a concept on the project, i will upload it 
> tommorow. Im also very familiar with large and even complex sql databases 
> since this is part of my work.
> 
> But such a project will only become great if there are people who are willing 
> to help, mostly to either provide data or enter data. 
> 
> As terry wrote, the archived list also could be used and converted.
> 
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Re: [neonixie-l] Tube database?

2019-04-21 Thread alex nolan 
Jonathan, 

That's rather exciting. I'd request that the website would be easily backed 
up by any user who wanted to, but downloading an archive or something.

On Sunday, April 21, 2019 at 5:16:28 PM UTC-4, SWISSNIXIE - Jonathan F. 
wrote:
>
> Hi Jens,
>
> Nice to hear! I already made a concept on the project, i will upload it 
> tommorow. Im also very familiar with large and even complex sql databases 
> since this is part of my work.
>
> But such a project will only become great if there are people who are 
> willing to help, mostly to either provide data or enter data. 
>
> As terry wrote, the archived list also could be used and converted.
>
>

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Re: [neonixie-l] Tube database?

2019-04-21 Thread SWISSNIXIE - Jonathan F. 
Hi Jens,

Nice to hear! I already made a concept on the project, i will upload it 
tommorow. Im also very familiar with large and even complex sql databases since 
this is part of my work.

But such a project will only become great if there are people who are willing 
to help, mostly to either provide data or enter data. 

As terry wrote, the archived list also could be used and converted.

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Re: [neonixie-l] Tube database?

2019-04-21 Thread jb-electronics 

Dear Terry,

jb-electronics.de will be around for the forseeable future, I can 
promise that :) But I see your point.


Dieter and myself set up a nixie tube database back in 2011 on 
http://nixie-museum.org/ which I still own but it is no longer 
functional. I have extensive knowledge in database programming and 
webdesign, but I presently do not have the time to develop the database.


Maybe enybody can list some features in this thread they would like to 
see? I will make a note of them and hopefully I will have some time for 
this project this summer.


Best wishes
Jens

On 2019-04-21 2:56 p.m., Mac Doktor wrote:


On Apr 21, 2019, at 2:48 PM, SWISSNIXIE - Jonathan F. 
mailto:jfrech...@gmail.com>> wrote:


Nowadays nixie tube names are easily found by google, but there are 
alot of collectors that have many tubes, and other places where only 
a few tubes are listed etc. Sadly there is no "master" list of tubes, 
where you can find all (yet) known types.


This is exactly my problem. I only collect symbolic tubes, not 
numeric. In addition, I'm not interested in simple plus, minus, and/or 
numeral 1 tubes so I'd like to be able to filter them out as well. I 
already have all the former Soviet symbol tubes and I don't know what 
to search for next on eBay.



The database would only provide text data about the tubes - no images 
or datasheets - if a collector owns a particular tube, a link could 
be added to see this tube on the collectors page. This would ensure 
that visitors still would visit the collectors pages instead of 
looking up tube images on the master database. So every collector 
could freely design his own website.


Exactly. Links to existing sites would have to be a main feature.

On a related note, one of my nightmares is that sites like 
http://www.tube-tester.com or www.jb-electronics.de 
 might disappear someday due to 
unforeseen circumstances. It would be terrible to lose all of that 
information and the enormous effort put into compiling it. Alan 
Franzman's site only exists on Archive.org  now:


https://web.archive.org/web/20111222052741/http://mysite.verizon.net/res0fab4/files/nixdat.htm


Terry Bowman, KA4HJH
"The Mac Doctor"

"I've seen things you /people/ wouldn't believe: attack ships on fire 
off the shoulder of Orion... beams...in the dark in the Tannhauser 
Gate. All those moments will be lost in time...like tears in 
the rain." — Roy Batty, /Blade Runner/


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Re: [neonixie-l] Tube database?

2019-04-21 Thread Mac Doktor 

> On Apr 21, 2019, at 2:48 PM, SWISSNIXIE - Jonathan F.  
> wrote:
> 
> Nowadays nixie tube names are easily found by google, but there are alot of 
> collectors that have many tubes, and other places where only a few tubes are 
> listed etc. Sadly there is no "master" list of tubes, where you can find all 
> (yet) known types.

This is exactly my problem. I only collect symbolic tubes, not numeric. In 
addition, I'm not interested in simple plus, minus, and/or numeral 1 tubes so 
I'd like to be able to filter them out as well. I already have all the former 
Soviet symbol tubes and I don't know what to search for next on eBay.


> The database would only provide text data about the tubes - no images or 
> datasheets - if a collector owns a particular tube, a link could be added to 
> see this tube on the collectors page. This would ensure that visitors still 
> would visit the collectors pages instead of looking up tube images on the 
> master database. So every collector could freely design his own website.

Exactly. Links to existing sites would have to be a main feature.

On a related note, one of my nightmares is that sites like 
http://www.tube-tester.com or www.jb-electronics.de might disappear someday due 
to unforeseen circumstances. It would be terrible to lose all of that 
information and the enormous effort put into compiling it. Alan Franzman's site 
only exists on Archive.org now:

https://web.archive.org/web/20111222052741/http://mysite.verizon.net/res0fab4/files/nixdat.htm


Terry Bowman, KA4HJH
"The Mac Doctor"

"I've seen things you people wouldn't believe: attack ships on fire off the 
shoulder of Orion... beams...in the dark in the Tannhauser Gate. All those 
moments will be lost in time...like tears in the rain." — Roy Batty, Blade 
Runner

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Re: [neonixie-l] Re: Tube database?

2019-04-21 Thread Nicholas Stock 
That sounds like a good resource (if it doesn't already exist). What kind
of help are you looking for?

Nick

On Sun, Apr 21, 2019 at 12:03 PM Dekatron42 
wrote:

> A link to datasheets found on Frank Philipses huge database would also be
> good: https://frank.pocnet.net/sheetsZ.html (some Nixies on that page in
> particular).
>
> /Martin
>
> On Sunday, 21 April 2019 20:48:11 UTC+2, SWISSNIXIE - Jonathan F. wrote:
>>
>> Hi all,
>>
>> I would like to present one of my ideas/dreams. Please notice, that this
>> topic is not about how to do it, its just a general question of interest.
>>
>>
>> Nowadays nixie tube names are easily found by google, but there are alot
>> of collectors that have many tubes, and other places where only a few tubes
>> are listed etc. Sadly there is no "master" list of tubes, where you can
>> find all (yet) known types.
>>
>> Imagine a website where you can find only a list of nixie tubes, and
>> their common paramters like size, characters and shape. The page would have
>> a advanced search filter like you know from mouser or digikey shops when
>> looking for parts. The list would conain each known parameter of a tube, in
>> some cases maybe only its name and manufacturer, in other cases
>> name,manufacturer,base,shape,size,characters.
>> The database would only provide text data about the tubes - no images or
>> datasheets - if a collector owns a particular tube, a link could be added
>> to see this tube on the collectors page. This would ensure that visitors
>> still would visit the collectors pages instead of looking up tube images on
>> the master database. So every collector could freely design his own website.
>>
>>
>> To make something like this come alive, it would need the help of people
>> from this group.
>>
>>
>> So, what do you think? Any opinions about this? Any interest?
>>
>>
>>
>> --
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[neonixie-l] Re: Tube database?

2019-04-21 Thread Dekatron42 
A link to datasheets found on Frank Philipses huge database would also be 
good: https://frank.pocnet.net/sheetsZ.html (some Nixies on that page in 
particular).

/Martin

On Sunday, 21 April 2019 20:48:11 UTC+2, SWISSNIXIE - Jonathan F. wrote:
>
> Hi all,
>
> I would like to present one of my ideas/dreams. Please notice, that this 
> topic is not about how to do it, its just a general question of interest.
>
>
> Nowadays nixie tube names are easily found by google, but there are alot 
> of collectors that have many tubes, and other places where only a few tubes 
> are listed etc. Sadly there is no "master" list of tubes, where you can 
> find all (yet) known types.
>
> Imagine a website where you can find only a list of nixie tubes, and their 
> common paramters like size, characters and shape. The page would have a 
> advanced search filter like you know from mouser or digikey shops when 
> looking for parts. The list would conain each known parameter of a tube, in 
> some cases maybe only its name and manufacturer, in other cases 
> name,manufacturer,base,shape,size,characters.
> The database would only provide text data about the tubes - no images or 
> datasheets - if a collector owns a particular tube, a link could be added 
> to see this tube on the collectors page. This would ensure that visitors 
> still would visit the collectors pages instead of looking up tube images on 
> the master database. So every collector could freely design his own website.
>
>
> To make something like this come alive, it would need the help of people 
> from this group. 
>
>
> So, what do you think? Any opinions about this? Any interest?
>
>
>
>

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[neonixie-l] Tube database?

2019-04-21 Thread SWISSNIXIE - Jonathan F. 
Hi all,

I would like to present one of my ideas/dreams. Please notice, that this 
topic is not about how to do it, its just a general question of interest.


Nowadays nixie tube names are easily found by google, but there are alot of 
collectors that have many tubes, and other places where only a few tubes 
are listed etc. Sadly there is no "master" list of tubes, where you can 
find all (yet) known types.

Imagine a website where you can find only a list of nixie tubes, and their 
common paramters like size, characters and shape. The page would have a 
advanced search filter like you know from mouser or digikey shops when 
looking for parts. The list would conain each known parameter of a tube, in 
some cases maybe only its name and manufacturer, in other cases 
name,manufacturer,base,shape,size,characters.
The database would only provide text data about the tubes - no images or 
datasheets - if a collector owns a particular tube, a link could be added 
to see this tube on the collectors page. This would ensure that visitors 
still would visit the collectors pages instead of looking up tube images on 
the master database. So every collector could freely design his own website.


To make something like this come alive, it would need the help of people 
from this group. 


So, what do you think? Any opinions about this? Any interest?



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Re: [neonixie-l] Re: What a find!

2019-04-21 Thread SWISSNIXIE - Jonathan F. 
Oh man, love that place!

When i was on holiday in the USA 2017, i spent a afternoon in their shop. 
What an amazing place... nothing like that here in switzerland. The only 
thing that saved my bank account that day, was the fact that i've came with 
plane and could not take anything large and heavy with me!.

The only few parts that came home with me were a few soldered out nixies, a 
radioactive transmit tube, and a few of these "safety cap" switches. 

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[neonixie-l] About high prices.. best things come cheap

2019-04-21 Thread SWISSNIXIE - Jonathan F. 
There are a few posts about high prices of tubes, and i feel like quite 
alot of people are sad and worried about this. I want to share a little 
story of mine about tubes.

Since a few of you know, i'm more a collector than a builder. I want to 
collect single tubes and expand my diverse collection of nixies. In the 
roughly four years i'm collecting this tubes i came across dozens of 
auctions with ridicolous high prices. When the few months were over where i 
was busy getting most of the common tubes (IN-XX, ZM10XX) i searched for 
less known (or more rare) tubes. After seeing the first auctions of rare 
tubes going for crazy prices, i was quite sad and felt like "man, you never 
will get any rare tubes". Still i was curious about nixie tubes an focussed 
more about actually building a clock and learn more about these fantastic 
wonders of technology. Auctions came less interesting and i only checked my 
ebay-tool once a day. After some months i was taught that actually waiting 
and being patient does the job. In two years i aquiered quite a few rare 
and extremely rare tubes, which actually were extremely cheap, compared to 
other acutions. 

One of the biggest "secrets" is actually to ask sellers if the have more, 
and provide a few info about what you do with them.

Here are my "Top 4":

4.)  ZM562M2 and M3

These are german elevator nixies, one has arrows, one has letters. I 
aquired them from a german ebayer, i actually purchased a set of B5092 from 
him, and asked if he has other nixies. He respondes with a few single 
quanities and "two weird ones, that no one could use". After asking for a 
image, they turned out as these rather rare tubes. Got them both for 10€

3.) ZM1220

This very rare and rather big tube made it to me by luck. I was bidding on 
a carton box of different tubes, containig a few nixies. On the very bad 
pictures i thought its gonna be a Z566M, but when the package arrived, i 
was amazed about this wonderful tube. I payed only 45€ for the whole box, 
which containd a few other common tubes. 

2.) CD-27
I purchased some rodan character tubes from a german ebayer. After asking 
about more, and getting "yes some very ugly big ones" i requested images 
about them :). It turned out to be CD27 with black spots. He asked 75€ for 
them. I purchased them. When they arrived, alot of the black spots was only 
dirt and could be cleaned. Leaving me with on perfect and two slightly 
burned out ones. Out of respect i contacted the seller and offered him 
another 50€. Making 125€ for all of them, which is still a very cheap price 
for this tubes. One slightly burnded out one made a very nice trade with 
another collector

1.) GI-11B

This is for sure the most amazing tube ever. After buying a few old 
burroughs tubes, including the HB-106, the seller told me about a few more 
he has, but don't want so sell them since they are single pieces, old, and 
he doesn't think someone needs them. As i'm very curious for new types, i 
asked him what markings they had. Most were comon, but GI-11B came up. I 
replied that it must be GI-10 or so. No it wasn't, he told me about that 
its saying clearly "GI-11B Engineering Sample"... That rang bells. I asked 
if i can see an image. He told me about this former job at a electronics 
repair shop, that closed over 60years of operation, and left alot of stuff 
behind. After i told him about my hobby he was really enyoed that young 
people (like me) are still interested in such old stuff. End of the story 
was, that the offered me the tube for 10$ because of its oddity. I 
declinded the offer, paying only 10$ for such a tube would been ripping of, 
its likely he did not realize what value this tube has (materialistic and 
historical). I made him a better deal. 
This is my personal favourite tube - for one because of it rarity and 
specialit - for another because of the story


What i wanted to tell you with this, is that you not should feel bad or sad 
about tubes that are at a high price currently. If you have time and just 
keeping an eye on offers, one day you will find a very good deal for 
sure.One big "issue" about the high prices might be social media. I have a 
personal instagram account (not related to nixies) and i spot nixie tubes 
quite often in the discover feed on technical pages. This for sure draws 
the attention of more people to nixies who have not known them yet. This is 
bad and good in one way, sure its nice when there are more people 
interested in nixie tubes, but mostly those new people are the ones that 
just "like to have a vintage clock" instead of knowing the details. Thats 
quite the same thing with people who want to build IoT devices and know 
jack about resistors and basic parts. 

Maybe one day this "hype" about some tubes will fade, and they will come 
back to a normal level. Just be pacient and keep your eyes open for good 
deals!


Cheers,
Jonathan 

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Re: [neonixie-l] Re: What a find!

2019-04-21 Thread martin martin 
Yes
Apex surplus in San Fernando
I went through their stock.  They have more than 25 more nixie devices left!

Most of the prices are fair.  I did see a lot voltmeters using the skinny
little Burroughs 88xx series.  They don’t have a useable website ... so you
have to drive out there.   Just don’t go in the evening...

On Sun, Apr 21, 2019 at 11:04 SWISSNIXIE - Jonathan F. 
wrote:

> Was this item found at Apex Surplus? :D
>
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[neonixie-l] Re: What a find!

2019-04-21 Thread SWISSNIXIE - Jonathan F. 
Was this item found at Apex Surplus? :D

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Re: [neonixie-l] Re: (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested

2019-04-21 Thread Kevin A. 
Looks like he hasn't figured out the Ebay bidding process yet. Put in the
highest amount you're willing to spend. If you're beat, then someone is
willing to pay more. Simple.

On Sun, Apr 21, 2019, 1:39 PM 'jf...@my-deja.com' via neonixie-l <
neonixie-l@googlegroups.com> wrote:

>
>
> On Sunday, April 21, 2019 at 10:19:03 AM UTC-7, Kevin A. wrote:
>>
>> . Over 50 bids, most of them the same low feedback bidder. Another
>> sleazeBay special!
>>
>> It looks more like a product of the automatic bidding process where the
> lower bids are instantaneously by the previous high bid, with lots of
> hopeful small increases by the lower bidder.
>
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Re: [neonixie-l] Re: (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested

2019-04-21 Thread 'jf...@my-deja.com' via neonixie-l 


On Sunday, April 21, 2019 at 10:19:03 AM UTC-7, Kevin A. wrote:
>
> . Over 50 bids, most of them the same low feedback bidder. Another 
> sleazeBay special! 
>
> It looks more like a product of the automatic bidding process where the 
lower bids are instantaneously by the previous high bid, with lots of 
hopeful small increases by the lower bidder. 

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Re: [neonixie-l] Re: (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested

2019-04-21 Thread Kevin A. 
Definitely shilling. Over 50 bids, most of them the same low feedback
bidder. Another sleazeBay special!

On Sun, Apr 21, 2019, 12:18 PM Terry S  wrote:

> Several low feedback bidders. Might be shilling
>
> On Sunday, April 21, 2019 at 9:47:27 AM UTC-5, Pramanicin wrote:
>>
>> More price craziness...
>>
>>
>> Look at this on eBay
>> (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A
>> Untested
>> 
>>
>>
>>
>> Sent from my iPhone
>>
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Re: [neonixie-l] Re: (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested

2019-04-21 Thread martin martin 
One of those tube does not look too happy...

On Sun, Apr 21, 2019 at 9:18 AM Terry S  wrote:

> Several low feedback bidders. Might be shilling
>
> On Sunday, April 21, 2019 at 9:47:27 AM UTC-5, Pramanicin wrote:
>>
>> More price craziness...
>>
>>
>> Look at this on eBay
>> (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A
>> Untested
>> 
>>
>>
>>
>> Sent from my iPhone
>>
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Re: [neonixie-l] What a find!

2019-04-21 Thread martin martin 
Look at the pinout.  Very odd.  And, they were made in Geneva, IL!

On Sun, Apr 21, 2019 at 9:13 AM Nicholas Stock  wrote:

> Nice tubes...that was a good find!
>
> On Sun, Apr 21, 2019 at 9:12 AM martin martin  wrote:
>
>> The tubes are National Instruments NL-842.  They site nicely behind a
>> clean red bezel.
>>
>> On Sun, Apr 21, 2019 at 9:07 AM Kevin A. 
>> wrote:
>>
>>> Yeah you could drive the counter with a frequency generator circuit or
>>> something similar to display time. If it works I would try to preserve the
>>> originality of the whole unit!
>>>
>>> Showing time could readily be accomplished with an ESP, Arduino, or
>>> similar for 10 bucks in hardware.
>>>
>>> What tube type does it have?
>>>
>>> On Sun, Apr 21, 2019, 11:47 AM Nicholas Stock 
>>> wrote:
>>>
 Maybe turn it into a clock as is?? Ala Paul Parry

 Sent from my iPhone

 On Apr 21, 2019, at 08:45, martin martin  wrote:

 I found this in a surplus store in Los Angeles.  Berkely 6401
 Programmable Counter Timer.  Built in about 74-75.  Completely designed
 with TTL all in sockets too.
 That's 9 perfect 0.75" tall Nixies and 1 special symbol Nix.  Works
 too!  I can't bare to take it apart to make just to make two clocks!


 https://drive.google.com/drive/folders/1UxNk-MNiddaSGiuZOHX8Y3V2DiR3hdFz?usp=sharing

 -martin





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[neonixie-l] Re: (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested

2019-04-21 Thread Terry S 
Several low feedback bidders. Might be shilling

On Sunday, April 21, 2019 at 9:47:27 AM UTC-5, Pramanicin wrote:
>
> More price craziness...
>
>
> Look at this on eBay
> (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A 
> Untested 
> 
>
>
>
> Sent from my iPhone
>

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Re: [neonixie-l] What a find!

2019-04-21 Thread Nicholas Stock 
Nice tubes...that was a good find!

On Sun, Apr 21, 2019 at 9:12 AM martin martin  wrote:

> The tubes are National Instruments NL-842.  They site nicely behind a
> clean red bezel.
>
> On Sun, Apr 21, 2019 at 9:07 AM Kevin A. 
> wrote:
>
>> Yeah you could drive the counter with a frequency generator circuit or
>> something similar to display time. If it works I would try to preserve the
>> originality of the whole unit!
>>
>> Showing time could readily be accomplished with an ESP, Arduino, or
>> similar for 10 bucks in hardware.
>>
>> What tube type does it have?
>>
>> On Sun, Apr 21, 2019, 11:47 AM Nicholas Stock 
>> wrote:
>>
>>> Maybe turn it into a clock as is?? Ala Paul Parry
>>>
>>> Sent from my iPhone
>>>
>>> On Apr 21, 2019, at 08:45, martin martin  wrote:
>>>
>>> I found this in a surplus store in Los Angeles.  Berkely 6401
>>> Programmable Counter Timer.  Built in about 74-75.  Completely designed
>>> with TTL all in sockets too.
>>> That's 9 perfect 0.75" tall Nixies and 1 special symbol Nix.  Works
>>> too!  I can't bare to take it apart to make just to make two clocks!
>>>
>>>
>>> https://drive.google.com/drive/folders/1UxNk-MNiddaSGiuZOHX8Y3V2DiR3hdFz?usp=sharing
>>>
>>> -martin
>>>
>>>
>>>
>>>
>>>
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Re: [neonixie-l] What a find!

2019-04-21 Thread martin martin 
The tubes are National Instruments NL-842.  They site nicely behind a clean
red bezel.

On Sun, Apr 21, 2019 at 9:07 AM Kevin A. 
wrote:

> Yeah you could drive the counter with a frequency generator circuit or
> something similar to display time. If it works I would try to preserve the
> originality of the whole unit!
>
> Showing time could readily be accomplished with an ESP, Arduino, or
> similar for 10 bucks in hardware.
>
> What tube type does it have?
>
> On Sun, Apr 21, 2019, 11:47 AM Nicholas Stock  wrote:
>
>> Maybe turn it into a clock as is?? Ala Paul Parry
>>
>> Sent from my iPhone
>>
>> On Apr 21, 2019, at 08:45, martin martin  wrote:
>>
>> I found this in a surplus store in Los Angeles.  Berkely 6401
>> Programmable Counter Timer.  Built in about 74-75.  Completely designed
>> with TTL all in sockets too.
>> That's 9 perfect 0.75" tall Nixies and 1 special symbol Nix.  Works too!
>> I can't bare to take it apart to make just to make two clocks!
>>
>>
>> https://drive.google.com/drive/folders/1UxNk-MNiddaSGiuZOHX8Y3V2DiR3hdFz?usp=sharing
>>
>> -martin
>>
>>
>>
>>
>>
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Re: [neonixie-l] What a find!

2019-04-21 Thread Kevin A. 
Yeah you could drive the counter with a frequency generator circuit or
something similar to display time. If it works I would try to preserve the
originality of the whole unit!

Showing time could readily be accomplished with an ESP, Arduino, or similar
for 10 bucks in hardware.

What tube type does it have?

On Sun, Apr 21, 2019, 11:47 AM Nicholas Stock  wrote:

> Maybe turn it into a clock as is?? Ala Paul Parry
>
> Sent from my iPhone
>
> On Apr 21, 2019, at 08:45, martin martin  wrote:
>
> I found this in a surplus store in Los Angeles.  Berkely 6401 Programmable
> Counter Timer.  Built in about 74-75.  Completely designed with TTL all in
> sockets too.
> That's 9 perfect 0.75" tall Nixies and 1 special symbol Nix.  Works too!
> I can't bare to take it apart to make just to make two clocks!
>
>
> https://drive.google.com/drive/folders/1UxNk-MNiddaSGiuZOHX8Y3V2DiR3hdFz?usp=sharing
>
> -martin
>
>
>
>
>
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Re: [neonixie-l] What a find!

2019-04-21 Thread Nicholas Stock 
Maybe turn it into a clock as is?? Ala Paul Parry

Sent from my iPhone

> On Apr 21, 2019, at 08:45, martin martin  wrote:
> 
> I found this in a surplus store in Los Angeles.  Berkely 6401 Programmable 
> Counter Timer.  Built in about 74-75.  Completely designed with TTL all in 
> sockets too.
> That's 9 perfect 0.75" tall Nixies and 1 special symbol Nix.  Works too!  I 
> can't bare to take it apart to make just to make two clocks!
> 
> https://drive.google.com/drive/folders/1UxNk-MNiddaSGiuZOHX8Y3V2DiR3hdFz?usp=sharing
> 
> -martin
> 
> 
> 
> 
> 
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[neonixie-l] What a find!

2019-04-21 Thread martin martin 
I found this in a surplus store in Los Angeles.  Berkely 6401 Programmable 
Counter Timer.  Built in about 74-75.  Completely designed with TTL all in 
sockets too.
That's 9 perfect 0.75" tall Nixies and 1 special symbol Nix.  Works too!  I 
can't bare to take it apart to make just to make two clocks!

https://drive.google.com/drive/folders/1UxNk-MNiddaSGiuZOHX8Y3V2DiR3hdFz?usp=sharing

-martin





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[neonixie-l] (12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested

2019-04-21 Thread Nicholas Stock 
More price craziness...


Look at this on eBay
(12) 16-Pin NIXIE TUBES National Electronics NL5441A Burroughs B5441A Untested



Sent from my iPhone

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Re: [neonixie-l] Welcome & please introduce yourself!

2019-04-21 Thread 'John Rehwinkel' via neonixie-l 
> 1) is it possible to use a simple H bridge to provide a rough AC drive to 
> operate the heater?  I presume originally it was spec'd for AC rather than 
> pulsed DC.

Yeah, works fine.  H-bridge, power op amp, gate driver, whatever.  You can use 
series resistors to adjust the current and reduce warm-up transients, and/or 
capacitors to limit current and float the filament to any useful voltage (I 
like to run it a few volts positive to get solid cut-of with a grounded grid.  
As it happens, two 5V H-bridges run out of phase gives an average of 2.5V, 
which seems to work well, and a series resistor adjusts the voltage/current as 
needed.

- John

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