[neonixie-l] B-7971

2013-03-12 Thread Tristan


It's probably wishful thinking but I'd like to track down a single B-7971. 
I'm in the process of building a clock and one of four tubes I have is a 
little reluctant on a couple of segments. Perhaps it can be revived with 
some extra current?

https://lh3.googleusercontent.com/-8NEKtUWdNM0/UT7EOGsMeRI/AAM/1fztdRJxA4I/s1600/8543980711_ddb29c28ad_k.jpg




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[neonixie-l] Re: Looking for VFDs

2013-03-12 Thread Grahame Marsh

On 12/03/2013 05:51, Tristan wrote:

Have you seen here?

http://store.reuseum.com/Itron_Noritake_FG165S1_VFD_p/noritake-07-001.htm


Tristan

Yep, that's my fallback - was really looking for a swap as I have lots 
of other things that glow (although not as many as some).


but thanks
Grahame

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[neonixie-l] Photoelectronic Devices by JB Dance

2013-03-12 Thread Grahame Marsh


An interesting book, the volume I have is published in 1969 so it is in 
the period that interests many.  Several chapters on photoemission 
(materials, diodes, tubes), semiconductors as photodevices, image 
intensifiers and electroluminescent devices. Mostly theory and equations 
but with a few practical, illustrative circuits.  Not a bad gamble as 
Abe Books has copies starting at GBP 0.69 plus postage...


Cheers Grahame

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[neonixie-l] New set of IN-9 nixie tubes

2013-03-12 Thread rkvs
Hello experts,
I recently bought a set of IN-9 tubes for a diy audio spectrum analyzer.

Here are links to the pictures of one of the tube:
http://www.flickr.com/photos/svkr2k/8550925083/in/photostream
http://www.flickr.com/photos/svkr2k/8550925431/in/photostream/
http://www.flickr.com/photos/svkr2k/8550925643/in/photostream/

Is this really new one? I noticed that the backside of the tube has black 
deposits like it was used?
Any ideas?

I'm totally new to nixie tubes.
-rkvs.

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[neonixie-l] Re: New set of IN-9 nixie tubes

2013-03-12 Thread rkvs
For high voltage power supply, I was planning to use 230V to 110V AC 
transformer and rectify it. So, the DC voltage would be 155.6V, I hope.
Here is a nice article regarding in-9 driver that has +150V as high voltage 
power supply. So, I believe that I can use the same circuit and test all 
in-9 tubes i got?
I'm worried about cathode poisoning and other issues that are common with 
these tubes.

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[neonixie-l] Re: B-7971

2013-03-12 Thread MichaelB
I'd give it a dose. My experience is these small segments respond pretty 
well to treatment. Just be careful not to overdue it

On Monday, March 11, 2013 11:00:44 PM UTC-7, Tristan wrote:

 It's probably wishful thinking but I'd like to track down a single B-7971. 
 I'm in the process of building a clock and one of four tubes I have is a 
 little reluctant on a couple of segments. Perhaps it can be revived with 
 some extra current?


 https://lh3.googleusercontent.com/-8NEKtUWdNM0/UT7EOGsMeRI/AAM/1fztdRJxA4I/s1600/8543980711_ddb29c28ad_k.jpg






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[neonixie-l] 5-ht please contact me

2013-03-12 Thread laingt
5-ht please contact me.  Tim Laing
Sorry to use Nixie bandwidth but this is nixie related.

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