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Jonathan Peakall  
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 More options Jul 5 2012, 10:17 am
From: "Jonathan Peakall" <jpeak...@madlabs.info>
Date: Thu, 5 Jul 2012 07:17:53 -0700
Local: Thurs, Jul 5 2012 10:17 am
Subject: INS-1 problems
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Hi All,

I have been putting a clock together using INS-1 tubes for colons. The problem is that after a few hours of use the tubes have become erratic and dimmer, with one of them being worse than the other. I am driving them at .3mA which is less than the recommended current. Cathode poisoning? Should I drive them harder for a while and if so how hard and how long?

This clock is a gift that is due next week. And I can't find the other two INS-1s that I bought! Ahhh! Help!

Jonathan
www.madlabs.info


 
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B Otto  
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 More options Jul 6 2012, 5:57 am
From: B Otto <b.otto.wea...@gmail.com>
Date: Fri, 6 Jul 2012 02:57:17 -0700 (PDT)
Local: Fri, Jul 6 2012 5:57 am
Subject: INS-1 problems
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Hi Jonathan,

In my expierence all the old Russian neons have quality issues. Of the INS-1s I have worked with it seems only 1 out of 20 will glow well for more than a week. These are far better than the IN-3s tho... out of my purchase of 500 only 30 or so worked as well as NOS American-made counterparts. Perhaps you and I have gotten bad batches or maybe the seals are suffering from time...

-Otto


 
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Dekatron42  
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 More options Jul 6 2012, 8:45 am
From: Dekatron42 <martin.forsb...@gmail.com>
Date: Fri, 6 Jul 2012 05:45:29 -0700 (PDT)
Local: Fri, Jul 6 2012 8:45 am
Subject: Re: INS-1 problems
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Have you "aged" the INS-1's before use?

Many neon indicators needs to be "aged" properly before use so the ones not
working properly can be removed, you can read about aging neon indicators
here: http://www.dos4ever.com/ring/ring.html , scroll down to "More on Neon
Tubes" to read about aging, but read the rest too as it is interresting
reading!

/Martin

Den torsdagen den 5:e juli 2012 kl. 16:17:53 UTC+2 skrev Jonathan:


 
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Jonathan Peakall  
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 More options Jul 6 2012, 11:03 am
From: "Jonathan Peakall" <jpeak...@madlabs.info>
Date: Fri, 6 Jul 2012 08:03:02 -0700
Local: Fri, Jul 6 2012 11:03 am
Subject: Re: [neonixie-l] INS-1 problems
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Hi Otto,

>In my expierence all the old Russian neons have quality issues. Of the
>INS-1s I have worked with it seems only 1 out of 20 >will glow well for
>more than a week. These are far better than the IN-3s tho... out of my
>purchase of 500 only 30 or so >worked as well as NOS American-made
>counterparts. Perhaps you and I have gotten bad batches or maybe the seals
>are >suffering from time...
>-Otto

Wow, what a drag to hear.  Are there any similar American made end view
tubes? This clock has to get out the door.

>Have you "aged" the INS-1's before use?
>Many neon indicators needs to be "aged" properly before use so the ones not
>working properly can be removed, you can >read about aging neon indicators
>here: http://www.dos4ever.com/ring/ring.html , scroll down to "More on Neon
>Tubes" to >read about aging, but read the rest too as it is interresting
>reading!

Martin,

No, I didn't. Turns out I did do sorta that yesterday. I discovered I had
swapped the anode and cathode wires, so I switched them back and then ran
'em at about 1mA for 1/2 an hour or so. I read and will re-read the page you
linked, but any guidlines on these tubes? How much current and for how long?

They are at least working again. Thanks!

Jonathan


 
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