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

[Robert L]

I'll look into other tubes... Will also want a buddy tube for the 10 hours 
place. Was forgetting about cathode poisoning prevention and would want to 
cycle all digits for this.

As I said, this will evolve for some while before any material is cut!

B

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

[Paul Andrews]

Does the IN-17 have an upside down 2 as a 5? Could you lay your hands on a 
B5991 instead?

> On Jun 9, 2017, at 10:46 PM, Robert L  wrote:
> 
> OK... I think I know what I want to do. A clock! Go figure...  
>  
> Probably just hours and minutes with the 7011 tubes as hours and smaller 
> tubes such as Z5600M or B-6091 for minutes.
> 
> 
> 
> As Paul A. suggests above, with hours on the 7011 tubes, only 05:xx and 06:xx 
> are missing digits. I'd include a smaller IN-17 or such tucked in to the side 
> of the one 7011 to fill in the missing 5 and 6 digits. The IN-17 would only 
> light when the big tube is missing a necessary 5 or 6. Have to make a 
> physical model of this and see how it would look... A friend points out that 
> too many tube types just makes a visual mess. Too much size variation also 
> not so good.
> 
> 
> 
> With the available digits, hours will display as:   1, 2, 3, 4, 5, 6, 7, 
> 8, 9, 10, 11, 12
> 
> 12 :  37All good digits.
>   5:  40Leading zero suppression, 5 missing and filled in by the 
> IN-17.
> 
>  
> 
> Might be pretty nice! Would likely use plex for the clock housing so that the 
> bodies of the 7011 tubes are visible complete with masking tape and grease 
> pencil(?)... Did I mention that there's a small bit of grease pencil on the 
> inside front of one tube. These have to be prototypes.
> 
>  
> 
> I've attached a file showing an IN-17 tucked in beside a 7011. IN-17 may be 
> too small. So, onward with sketches... this post just suggests my general 
> direction and I expect the idea to evolve for a fair while before any 
> material is cut.
> 
> 
> 
> Many thanks everyone for your ideas on how to recover the missing digits!
> 
> 
> 
> Best regards,
> 
> Bob
> 
>  
> 
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[neonixie-l] Re: Well I tried, big tubes on ebay this am

[Robert L]

OK... I think I know what I want to do. A clock! Go figure...  
 

Probably just hours and minutes with the 7011 tubes as hours and smaller 
tubes such as Z5600M or B-6091 for minutes.


As Paul A. suggests above, with hours on the 7011 tubes, only 05:xx and 
06:xx are missing digits. I'd include a smaller IN-17 or such tucked in to 
the side of the one 7011 to fill in the missing 5 and 6 digits. The IN-17 
would only light when the big tube is missing a necessary 5 or 6. Have to 
make a physical model of this and see how it would look... A friend points 
out that too many tube types just makes a visual mess. Too much size 
variation also not so good.


With the available digits, hours will display as:   *1, 2, 3, 4, *5*, *6*, 
7, 8, 9, 10, 11, 12*
*12* :  *37All good digits.*

  *5**:  40Leading zero suppression, 5 missing and filled in by the 
IN-17.*

 

Might be pretty nice! Would likely use plex for the clock housing so that 
the bodies of the 7011 tubes are visible complete with masking tape and 
grease pencil(?)... Did I mention that there's a small bit of grease pencil 
on the inside front of one tube. These *have *to be prototypes.

 

I've attached a file showing an IN-17 tucked in beside a 7011. IN-17 may be 
too small. So, onward with sketches... this post just suggests my general 
direction and I expect the idea to evolve for a fair while before any 
material is cut.


Many thanks everyone for your ideas on how to recover the missing digits!


Best regards,

Bob

 

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

[Robert L]

Finally a few free minutes at the end of the day... Cap meter results 
compelling for open digits.

All pins on both tubes measured with respect to the anode... 

> Pins that are not connected per the Burroughs data sheet and dark digits 
all measure ~3 pF or less with one N/C pin somewhat higher reading 3.7 pF.

> Glowing digits measure 6 pF or more with none higher than 7.5 pF.

I'm now accepting that the dark digits are disconnected from their pins.

All measurements in pF:

Pin Function Tube 9 Tube 10 
1 NC 3.1 3.7 
2 A n/a n/a 
3 K0 7.5 6.8 
4 K9 6.8 6.4 
5 K8 7.2 7.2 
6 K7 6 5.9 
7 K6 2.8 2.7 
8 NC 2.6 2.5 
9 K5 2.4 3 
10 K4 2.8 6.4 
11 K3 3.2 7.3 
12 K2 6.9 7 
13 K17 6.9 6.1 
14 NC 2.3 2.6 
I remain happy to have these tubes and am thinking about how to best 
display them...

Onward!

B

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[neonixie-l] Re: Fine vs Large mesh...

[Tomasz Kowalczyk]

That's am interesting question, it was bugging me lately that IN-4,  Z870M 
and other biquinary tubes were made with a standard front mesh, while the 
internal screen was made from a very fine wire, which is barely visible. 
Why weren't they produced with this fine mesh at the front, too?

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[neonixie-l] Fine vs Large mesh...

[Nicholas Stock]

So, a question for the peanut gallery (if this hasn't already been
discussed...I don't recall it..)...Occasionally you'll come across an IN14
or IN8 tube that has a fine vs the standard large mesh and the visible
appearance is clearly better with the fine meshwas it just a cost
cutting measure to go with the larger mesh or is there an electronic
advantage to it (lifetime etc...)...

Nick

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Re: [neonixie-l] Re: Four NL-8091 on ebay

[Paul Andrews]

Ask Dalibor to make some top-view tubes?

> On Jun 9, 2017, at 1:46 PM, Alic  wrote:
> 
> But what if you already have Dalibor's tubes?
> 
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Re: [neonixie-l] Re: Four NL-8091 on ebay

[chuck richards]

Rimshot!

 Original Message 
From: al...@gmx.net
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: Four NL-8091 on ebay
Date: Fri, 9 Jun 2017 10:46:13 -0700 (PDT)

>But what if you already have Dalibor's tubes?
>
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$4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web space. 5x 
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Re: [neonixie-l] Re: Four NL-8091 on ebay

[Alic]

But what if you already have Dalibor's tubes?

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Re: [neonixie-l] Re: Four NL-8091 on ebay

[chuck richards]

>That's just crazy.  For that kind of money I would simply
purchase some of Dalibor's tubes!

Chuck
>
>
> Original Message 
>From: p...@nixies.us
>To: neonixie-l@googlegroups.com
>Subject: Re: [neonixie-l] Re: Four NL-8091 on ebay
>Date: Fri, 9 Jun 2017 09:54:36 -0700 (PDT)
>
>>And it's already over $500 with 6 days to go. Guess my $30 bid
>didn't cut it!
>>
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Re: [neonixie-l] Re: Four NL-8091 on ebay

[Paul Andrews]

And it's already over $500 with 6 days to go. Guess my $30 bid didn't cut it!

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Re: [neonixie-l] Re: Four NL-8091 on ebay

[David Forbes]

Those look like old Burroughs tubes, because of the domed face and the 
ridge around the base. The National tubes in the previous auction have 
flatter faces, and the base is narrower than the envelope.


Also, the boxes are newly made, and there is no date code visible on the 
tubes, which is surprising.


Hard to say what's going on here. No metal deposits inside the tubes, so 
probably not used much.



On 6/8/2017 12:58 PM, SWISSNIXIE - Jonathan F. wrote:

There is a new auction from US about 4 8091

http://www.ebay.com/itm/NL8091-lot-of-4-NOS-Jumbo-Nixie-Tubes-Same-as-Boroughs-B-8091-NL-8091-Nixie-/322547684051?hash=item4b195712d3:g:h9oAAOSwq~tZOXHb

Lets see for how much they will sell! Hopefully they will sell under 
800$. Maybe the seller from france will be accept an offer around 150-200 :)



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Re: [neonixie-l] GR1028-GNP17A on Fleabay

[Roddy Scott]

Hi John,

I have sourced 20 NOS from the UK at a very good price and have 6 here so I 
will be OK for now. They are going into a couple of my Tesla Meets Edison 
clocks that have been requested. The rest will be for another design in the 
pipeline.

Thanks for the offer though.

Roddy

. 
>
> How many XN-11s do you need?  I think I have a set of 8, NIB. 
>
> - John 
>
>

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Re: [neonixie-l] GR1028-GNP17A on Fleabay

[John Rehwinkel]

> On Jun 9, 2017, at 6:31 AM, Roddy Scott  wrote:
> 
> On another tube that I need more of, XN-11s, I found a UK source for some of 
> these and awaiting price from him. He also has a load of ZM5XX tubes for sale 
> too.

How many XN-11s do you need?  I think I have a set of 8, NIB.

- John

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[neonixie-l] Re: GR1028-GNP17A on Fleabay

[Tomasz Kowalczyk]

8 sold in 1 hour. Wow. 

W dniu piątek, 9 czerwca 2017 12:31:42 UTC+2 użytkownik Roddy Scott napisał:
>
> These are up for sale on Fleabay - GR1028-GNP17A 
> 
> . 
>
> Trying to communicate with seller for a reduction in a bulk buy as they 
> are very nice tubes with a very crisp digit display that is comparable with 
> the GNP-7AHs that I have already used.
>
> On another tube that I need more of, XN-11s, I found a UK source for some 
> of these and awaiting price from him. He also has a load of ZM5XX tubes for 
> sale too.
>
> I have bought from him in the past and his prices are negotiable if you 
> are buying quite a few from him.
>

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RE: [neonixie-l] Re: Four NL-8091 on ebay

[Tidak Ada]

Considering the non-original boxes and the bent pins, I guess they’re not NOS, 
but ordinary pulls L

 

eric

Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens 
Nicholas Stock
Verzonden: vrijdag 9 juni 2017 1:04
Aan: neonixie-l@googlegroups.com
Onderwerp: Re: [neonixie-l] Re: Four NL-8091 on ebay

 

When you find some Jens, could you let me know? ;-)

 

On Thu, Jun 8, 2017 at 1:35 PM, jb-electronics  
wrote:

Personally I do not think that 8091 tubes are so rare, you just have to wait a 
bit. Cheers Jens



On 6/8/2017 9:58 PM, SWISSNIXIE - Jonathan F. wrote:

There is a new auction from US about 4 8091

http://www.ebay.com/itm/NL8091-lot-of-4-NOS-Jumbo-Nixie-Tubes-Same-as-Boroughs-B-8091-NL-8091-Nixie-/322547684051?hash=item4b195712d3:g:h9oAAOSwq~tZOXHb
 

 

Lets see for how much they will sell! Hopefully they will sell under 800$. 
Maybe the seller from france will be accept an offer around 150-200 :)



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