Re: [neonixie-l] B7971 - better contrast

2023-07-08 Thread Robert 
I’ve seen 12 of these tubes and two have had the top pin antenna ThanksRobOn 6 Jul 2023, at 16:20, Michail Wilson  wrote:







Same here.
I have 5x MOD_6 clocks (various versions).  2 with ‘antenna’ tubes. I notice no difference; however, I pride myself on having the antenna tubes.  Maybe it was just me, but having had hundreds (if not a thousand) of B7971 tubes, I have only
 run across the 13 antenna tubes  (yes, only 1 spare).
 

Michail 

 


From: neonixie-l@googlegroups.com 
On Behalf Of Nicholas Stock
Sent: Thursday, July 6, 2023 11:14 AM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] B7971 - better contrast


 
I have a MOD_6 with pin-top tubes in them. Absolutely no visual difference to the non-pin ones when compared side by side.

 


Jeff, you should have bought more when you could 
😀


 


I still rue the day when I thought a box of 100 IN14's at $99 was expensive.


 


Nick

Sent from my iPhone






On Jul 6, 2023, at 07:34, Robert G. Schaffrath <robert.schaffr...@gmail.com> wrote:




I have one of the pin top tubes (https://n2jtx.com/NixieClock/Used%20Burroughs%20B-7971.jpg). Unlike most of my other tubes, it is a
 Burroughs branded tube and not Ultronics. The only thing I ever noticed different about it was it seemed to have a deeper red glow than the Ultronics tubes which are more orange. Perhaps a different amount of mercury in it. Someday when I think about it I'll
 test it again.


On Wednesday, July 5, 2023 at 3:50:55 AM UTC-4 Jeff Walton wrote:




I have a number of these "rare pin-top" B-7971's and do not find any significant difference in contrast with the Ultronics versions of the 7971s .  The pin-topped or "antenna top" construction is an early format that uses a wired backplane
 instead of the PCB style interconnect.  It's a nice tube that looks good as a group in any clock.  There is no practical difference in operation  or appearance and there are certainly some MOD-6 clock owners that have full sets of these tubes in operation
 will tell you that they are equally reliable.   They will have date codes in the mid-1960s. 


 


It is uncommon to see a group like this available.   $250 to $275 each per tube seems to be the going price on ebay these days.  Overpriced but worth whatever someone is willing to pay.  


 


My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the early 1970's and included the boards with each pair.  


 


Jeff 




 


 Original message 


From: Robert <robnor...@gmail.com>



Date: 7/5/23 2:11 AM (GMT-06:00) 



To: neoni...@googlegroups.com



Subject: [neonixie-l] B7971 - better contrast



 

Not my auction but I saw this https://www.ebay.co.uk/itm/266322565516?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=v3sg3SvYRJa&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPY

 


In the description it says “This sale is for lots of "Pin-Top" version of the B-7971. The rare "Pin-Top" versions are made with a darker background on the segments
 that provide better contrast.”


 


I have some of these but have never noticed this


 


Rob





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RE: [neonixie-l] B7971 - better contrast

2023-07-06 Thread Michail Wilson 
Same here.
I have 5x MOD_6 clocks (various versions).  2 with ‘antenna’ tubes. I notice no 
difference; however, I pride myself on having the antenna tubes.  Maybe it was 
just me, but having had hundreds (if not a thousand) of B7971 tubes, I have 
only run across the 13 antenna tubes  (yes, only 1 spare).

Michail

From: neonixie-l@googlegroups.com  On Behalf Of 
Nicholas Stock
Sent: Thursday, July 6, 2023 11:14 AM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] B7971 - better contrast

I have a MOD_6 with pin-top tubes in them. Absolutely no visual difference to 
the non-pin ones when compared side by side.

Jeff, you should have bought more when you could 😀

I still rue the day when I thought a box of 100 IN14's at $99 was expensive.

Nick
Sent from my iPhone


On Jul 6, 2023, at 07:34, Robert G. Schaffrath 
mailto:robert.schaffr...@gmail.com>> wrote:
I have one of the pin top tubes 
(https://n2jtx.com/NixieClock/Used%20Burroughs%20B-7971.jpg). Unlike most of my 
other tubes, it is a Burroughs branded tube and not Ultronics. The only thing I 
ever noticed different about it was it seemed to have a deeper red glow than 
the Ultronics tubes which are more orange. Perhaps a different amount of 
mercury in it. Someday when I think about it I'll test it again.
On Wednesday, July 5, 2023 at 3:50:55 AM UTC-4 Jeff Walton wrote:
I have a number of these "rare pin-top" B-7971's and do not find any 
significant difference in contrast with the Ultronics versions of the 7971s .  
The pin-topped or "antenna top" construction is an early format that uses a 
wired backplane instead of the PCB style interconnect.  It's a nice tube that 
looks good as a group in any clock.  There is no practical difference in 
operation  or appearance and there are certainly some MOD-6 clock owners that 
have full sets of these tubes in operation will tell you that they are equally 
reliable.   They will have date codes in the mid-1960s.

It is uncommon to see a group like this available.   $250 to $275 each per tube 
seems to be the going price on ebay these days.  Overpriced but worth whatever 
someone is willing to pay.

My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the early 
1970's and included the boards with each pair.

Jeff

 Original message 
From: Robert 
Date: 7/5/23 2:11 AM (GMT-06:00)
To: neoni...@googlegroups.com
Subject: [neonixie-l] B7971 - better contrast

Not my auction but I saw this 
https://www.ebay.co.uk/itm/266322565516?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=v3sg3SvYRJa&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPY

In the description it says “This sale is for lots of "Pin-Top" version of the 
B-7971. The rare "Pin-Top" versions are made with a darker background on the 
segments that provide better contrast.”

I have some of these but have never noticed this

Rob
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Re: [neonixie-l] B7971 - better contrast

2023-07-06 Thread Nicholas Stock 
I have a MOD_6 with pin-top tubes in them. Absolutely no visual difference to the non-pin ones when compared side by side.Jeff, you should have bought more when you could 😀I still rue the day when I thought a box of 100 IN14's at $99 was expensive.NickSent from my iPhoneOn Jul 6, 2023, at 07:34, Robert G. Schaffrath  wrote:I have one of the pin top tubes (https://n2jtx.com/NixieClock/Used%20Burroughs%20B-7971.jpg). Unlike most of my other tubes, it is a Burroughs branded tube and not Ultronics. The only thing I ever noticed different about it was it seemed to have a deeper red glow than the Ultronics tubes which are more orange. Perhaps a different amount of mercury in it. Someday when I think about it I'll test it again.On Wednesday, July 5, 2023 at 3:50:55 AM UTC-4 Jeff Walton wrote:I have a number of these "rare pin-top" B-7971's and do not find any significant difference in contrast with the Ultronics versions of the 7971s .  The pin-topped or "antenna top" construction is an early format that uses a wired backplane instead of the PCB style interconnect.  It's a nice tube that looks good as a group in any clock.  There is no practical difference in operation  or appearance and there are certainly some MOD-6 clock owners that have full sets of these tubes in operation will tell you that they are equally reliable.   They will have date codes in the mid-1960s. It is uncommon to see a group like this available.   $250 to $275 each per tube seems to be the going price on ebay these days.  Overpriced but worth whatever someone is willing to pay.  My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the early 1970's and included the boards with each pair.  Jeff  Original message From: Robert  Date: 7/5/23  2:11 AM  (GMT-06:00) To: neoni...@googlegroups.com Subject: [neonixie-l] B7971 - better contrast Not my auction but I saw this https://www.ebay.co.uk/itm/266322565516?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=v3sg3SvYRJa&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPYIn the description it says “This sale is for lots of "Pin-Top" version of the B-7971. The rare "Pin-Top" versions are made with a darker background on the segments that provide better contrast.”I have some of these but have never noticed thisRob



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Re: [neonixie-l] B7971 - better contrast

2023-07-06 Thread Robert G. Schaffrath 
I have one of the pin top tubes 
(https://n2jtx.com/NixieClock/Used%20Burroughs%20B-7971.jpg). Unlike most 
of my other tubes, it is a Burroughs branded tube and not Ultronics. The 
only thing I ever noticed different about it was it seemed to have a deeper 
red glow than the Ultronics tubes which are more orange. Perhaps a 
different amount of mercury in it. Someday when I think about it I'll test 
it again.

On Wednesday, July 5, 2023 at 3:50:55 AM UTC-4 Jeff Walton wrote:

> I have a number of these "rare pin-top" B-7971's and do not find any 
> significant difference in contrast with the Ultronics versions of the 7971s 
> .  The pin-topped or "antenna top" construction is an early format that 
> uses a wired backplane instead of the PCB style interconnect.  It's a nice 
> tube that looks good as a group in any clock.  There is no practical 
> difference in operation  or appearance and there are certainly some MOD-6 
> clock owners that have full sets of these tubes in operation will tell you 
> that they are equally reliable.   They will have date codes in the 
> mid-1960s. 
>
> It is uncommon to see a group like this available.   $250 to $275 each per 
> tube seems to be the going price on ebay these days.  Overpriced but worth 
> whatever someone is willing to pay.  
>
> My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the 
> early 1970's and included the boards with each pair.  
>
> Jeff 
>
>  Original message 
> From: Robert  
> Date: 7/5/23 2:11 AM (GMT-06:00) 
> To: neoni...@googlegroups.com 
> Subject: [neonixie-l] B7971 - better contrast 
>
> Not my auction but I saw this 
> https://www.ebay.co.uk/itm/266322565516?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=v3sg3SvYRJa&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPY
>
> In the description it says “This sale is for lots of "Pin-Top" version of 
> the B-7971. The rare "Pin-Top" versions are made with a darker background 
> on the segments that provide better contrast.”
>
> I have some of these but have never noticed this
>
>
> Rob
>
> -- 
> You received this message because you are subscribed to the Google Groups 
> "neonixie-l" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to neonixie-l+...@googlegroups.com.
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> https://groups.google.com/d/msgid/neonixie-l/A272F92E-A09A-48E8-A051-2C15C292A57F%40gmail.com
>  
> 
> .
>

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RE: [neonixie-l] B7971 - better contrast

2023-07-05 Thread Jeff Walton 
I have a number of these "rare pin-top" B-7971's and do not find any 
significant difference in contrast with the Ultronics versions of the 7971s .  
The pin-topped or "antenna top" construction is an early format that uses a 
wired backplane instead of the PCB style interconnect.  It's a nice tube that 
looks good as a group in any clock.  There is no practical difference in 
operation  or appearance and there are certainly some MOD-6 clock owners that 
have full sets of these tubes in operation will tell you that they are equally 
reliable.   They will have date codes in the mid-1960s. It is uncommon to see a 
group like this available.   $250 to $275 each per tube seems to be the going 
price on ebay these days.  Overpriced but worth whatever someone is willing to 
pay.  My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the 
early 1970's and included the boards with each pair.  Jeff 
 Original message From: Robert  Date: 
7/5/23  2:11 AM  (GMT-06:00) To: neonixie-l@googlegroups.com Subject: 
[neonixie-l] B7971 - better contrast Not my auction but I saw this 
https://www.ebay.co.uk/itm/266322565516?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=v3sg3SvYRJa&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPYIn
 the description it says “This sale is for lots of "Pin-Top" version of the 
B-7971. The rare "Pin-Top" versions are made with a darker background on the 
segments that provide better contrast.”I have some of these but have never 
noticed thisRob



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