[neonixie-l] Re: Silver coating on inside of glass

This is a nixie tube, specifically a B-5441. It looks like there is some trouble getting the cathodes to fully light and it is missing the blue haze around numerals that other B-5441s seem to have. -- You received this message because you are subscribed to the Google Groups "neonixie-l"

Re: [neonixie-l] Silver coating on inside of glass

I tried heating one of my tubes with this shiny interior coating, and it would not turn to gas. The pressure inside a nixie is fairly low, so I thought that if this was mercury, it should have boiled-off, but it didn't. Perhaps it is a different metal; I'm not going to break it open to find

RE: [neonixie-l] Silver coating on inside of glass

Are we talking about a regular (non nixie) tube? The cold 866 rectifier tube for instance has a lot of condensed mercury on the inside of the glass. It evaporates when it gets hot. Bill From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of alex nolan Sent:

Re: [neonixie-l] Silver coating on inside of glass

That could be mercury condensate. I've seen it on a few JAN (mil spec/extended life) nixies I have; mercury is used to greatly reduce cathode poisoning. On Wed, Apr 10, 2019, 7:42 PM alex nolan wrote: > Hey all, > > Has anyone seen a tube with the inner glass covered in silver spots inside >

[neonixie-l] Nixies in 2001

Was showing a friend the movie 2001 for the first time, and noticed nixies in one shot: http://3.bp.blogspot.com/-0X7Adbhg1DA/UFCJSxQZugI/A04/HSOQwLM5vIo/s1600/nixie+2001.jpg -Dan

Re: [neonixie-l] Silver coating on inside of glass

Is this different from the usual getter spots? -Dan On Wed, 10 Apr 2019, alex nolan wrote: Hey all, Has anyone seen a tube with the inner glass covered in silver spots inside the tube? What does this mean and is it repairable like cathode poisoning? Thanks! -- You received this message

Re: [neonixie-l] Mystery tube

Thanks everyone!! Sent from my iPhone > On Apr 10, 2019, at 16:18, Mac Doktor wrote: > > >> On Apr 10, 2019, at 12:47 AM, Dekatron42 wrote: >> >> It is an uv flame detector tube. > > Dead on: > > http://www.industrialalchemy.org/articleview.php?item=3088 > > > Terry Bowman, KA4HJH >

[neonixie-l] Silver coating on inside of glass

Hey all, Has anyone seen a tube with the inner glass covered in silver spots inside the tube? What does this mean and is it repairable like cathode poisoning? Thanks! -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this

Re: [neonixie-l] Mystery tube

> On Apr 10, 2019, at 12:47 AM, Dekatron42 wrote: > > It is an uv flame detector tube. Dead on: http://www.industrialalchemy.org/articleview.php?item=3088 Terry Bowman, KA4HJH "The Mac Doctor" -- You received this message because you are subscribed to the Google Groups "neonixie-l"

[neonixie-l] Re: Nixie wristwatch

Some video about this wristwatch: https://www.youtube.com/watch?v=NUyCjmatdbg среда, 23 января 2019 г., 18:28:44 UTC+3 пользователь Dmitry Shevchenko написал: > > Nixie wristwatch. > Based on KF155ID1 (SO-16). > Circuit powered by 3.7V accumulator. > USB-mini charge. > > Regards from Russia. >

Re: [neonixie-l] Nixie wristwatch

Some video about this wristwatch: https://www.youtube.com/watch?v=NUyCjmatdbg чт, 24 янв. 2019 г. в 03:55, Дмитрий Шевченко : > I use this circuit for base and make with some modifications. > http://labkit.ru/html/clock?id=479 > I replaced PIC to Atmega. > I replaced MBTA42 transistors and 10k

RE: [neonixie-l] Mystery tube

I have come in late on this. Martin will be right. It does look similar to the Hamamatsu thingo. I was going to suggest it is a flash tube for the StroboTac or similar. [but that should glow I suppose]. I love doing "whatsits". John K -Original Message- From: