Radiation exposure chart to put it all in perspective!
http://xkcd.com/radiation/
Nick
--
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
On Monday, 30 September 2013 04:05:22 UTC+1, Joseph Bento wrote:
Here's a video of a guy getting really excited over the touch buttons:
Ummm. I thought that we were pretty sad liking cold-cathode stuff that
much, but I think that this guy need professional help !
Nick
--
You received this
On 30 Sep 2013, at 07:30, Nick wrote:
On Monday, 30 September 2013 04:05:22 UTC+1, Joseph Bento wrote:
Here's a video of a guy getting really excited over the touch buttons:
Ummm. I thought that we were pretty sad liking cold-cathode stuff that much,
but I think that this guy need
The real danger, here, is that these tubes - like many of the low voltage
trigger tubes - will not work very much longer as the radiation sources
decay and raises the trigger threshold.
I wonder if these could be resurrected by attaching a radiation source
to the envelope. I'd guess that
Kind of lends new meaning to getting off from the elevator. ;))
Ira. Also, maybe HIS elevator doesn't quite make it to the top
floor any longer. LOL
On 9/29/2013 11:43 PM, Quixotic Nixotic wrote:
On 30 Sep 2013, at 07:30, Nick wrote:
On Monday, 30 September 2013 04:05:22 UTC+1,
Some years ago I tried to do some tests on this (I have some 2040s).
As a general issue, nixies and neon trigger tubes also don't fire well in the
dark - they utilise stray photons to help initiate ionisation. If you wanted
reliable triggering, adding a small radioactive source helped
Sent: maandag 30 september 2013 16:40
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: Otis Elevator Tube Hivac 425A2
Some years ago I tried to do some tests on this (I have some 2040s).
As a general issue, nixies and neon trigger tubes also don't fire well
in the dark
Sorry, I meant 355 nm
eric
-Original Message-
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of Tidak Ada
Sent: maandag 30 september 2013 23:43
To: neonixie-l@googlegroups.com
Subject: RE: [neonixie-l] Re: Otis Elevator Tube Hivac 425A2
There are even
Back on topic...I hooked up the tube today and it works! Thanks for all
the info folks. Here is a quick iPhone YouTube video of my test:
http://youtu.be/kXbaP88k6EY
Mike
--
You received this message because you are subscribed to the Google Groups
neonixie-l group.
To unsubscribe from this
I worked for years in a Governement building in Hull Quebec (Place du
Portage) that had OTIS elevators with this style touch buttons. Most of
the staff thought they were heat activated and were worried that if
there was a fire they would call to the fire floor.
(several years later there was
The datashet that John linked to is stuck onto the end of the datasheet for
the QT1257, I never found it as a separate datasheet before when looking
for it several years ago.
I also forgot to say that it seems to me like these tubes were actually
named 425 or 425A as the last number varies
Here's a video of a guy getting really excited over the touch buttons:
http://www.youtube.com/watch?v=tUFRoBb3nGQ
I certainly remember these. Very common 20 years ago, but I'm certain I've
rode in elevators with these touch sensitive buttons over the past few
years.
Joe
On Saturday,
12 matches
Mail list logo
