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Mikeinkcmo
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Post subject: Re: Are some tubes Dangerous  Posted: Jun Wed 13, 2012 4:47 am |
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Joined: Oct Sun 15, 2006 12:57 pm
Posts: 3174
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Quote: Unless you are breaking the glass envelopes and licking the grids and what not, don't sweat it. Right now you are probably breathing in more radon gas than the miniscule exposure from a room full of static vacuum tubes! If they aren't powered up and generating electromagnetic radiation of some sort, it's not an issue. Again, plenty more questionable dangers have crossed your path.... like some food dyes, leached chemicals into food & water, and then there's the cheeseburger and fries that fell on the diner floor that got put back onto your plate and then cheerfully served to you. +1 A voice of reason in the crowd.
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mescalero
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Post subject: Re: Are some tubes Dangerous Posted: Jun Wed 13, 2012 5:30 am |
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Joined: Feb Thu 24, 2011 1:29 am
Posts: 2800
Location: Dallas, TX - in the city but with bobcats and coyotes
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Mmmmmm- cheeseburger.
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In a triode, no one can hear you screen.
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Monarke4
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Post subject: Re: Are some tubes Dangerous Posted: Jul Tue 17, 2012 4:51 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 217
Location: los angeles, california, usa
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Scott wrote: On the radioactive subject, old glow in the dark meters, watches, etc have radioactive radium in the paint. That is what makes them glow. The old story about watchmakers and the mad hatters.... 
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Donald R. Resor
N6KAW
www.hammondorganservice.com
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Monarke4
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Post subject: Re: Are some tubes Dangerous Posted: Jul Tue 17, 2012 4:55 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 217
Location: los angeles, california, usa
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Tubenut
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Post subject: Re: Are some tubes Dangerous Posted: Jul Tue 17, 2012 7:13 am |
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Joined: Oct Sun 11, 2009 10:06 am
Posts: 1441
Location: British Columbia
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YES BE AFRAID! see below.....
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Monarke4
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Post subject: Re: Are some tubes Dangerous Posted: Jul Tue 17, 2012 7:16 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 217
Location: los angeles, california, usa
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Coolbrucelong
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Post subject: Re: Are some tubes Dangerous Posted: Jul Wed 18, 2012 3:01 pm |
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Joined: Dec Mon 20, 2010 5:14 pm
Posts: 254
Location: Central Pennsylvania
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having just had double bypass heart surgery a few months ago I suspect my health would be better if my past life had include more vacuum tubes and fewer cheeseburgers.
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quadlibet2001
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Post subject: Re: Are some tubes Dangerous Posted: Jul Thu 19, 2012 5:36 am |
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Joined: Feb Tue 02, 2010 1:46 pm
Posts: 1048
Location: VA, 24019
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I got a 3DS3 (I think it's called) here that insists that one should wash their hands after handling.
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MM
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Post subject: Re: Are some tubes Dangerous Posted: Jul Thu 19, 2012 11:39 am |
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Joined: Nov Wed 15, 2006 7:56 am
Posts: 539
Location: germany
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when it will not make light in the darkness, it`s not a dangerous tube  Attachment:
1-er21a 001.jpg [ 94.1 KiB | Viewed 183 times ]
the litlle ghetter inside is made with cesium or like that. Nevr enough to make afraid. greetings Martin
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mescalero
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Post subject: Re: Are some tubes Dangerous Posted: Jul Thu 19, 2012 2:17 pm |
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Joined: Feb Thu 24, 2011 1:29 am
Posts: 2800
Location: Dallas, TX - in the city but with bobcats and coyotes
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MM wrote: when it will not make light in the darkness, it`s not a dangerous tube Attachment: 1-er21a 001.jpg the litlle ghetter inside is made with cesium or like that. Nevr enough to make afraid. greetings Martin ER21A (ER21A): Sehr radioaktive Röhre! Die genannte Röhre weist eine recht hohe Radioaktivität auf. Mit einem Geiger-Muller-Zähler habe ich bei meinem Exemplar die beachtliche Dosis von 22 mikroSievert/h (uS/h), normiert auf Cs137, gemessen. Cut/pasted from: http://www.radiomuseum.org/tubes/tube_er21a.html
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In a triode, no one can hear you screen.
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MM
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Post subject: Re: Are some tubes Dangerous Posted: Jul Thu 19, 2012 2:57 pm |
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Joined: Nov Wed 15, 2006 7:56 am
Posts: 539
Location: germany
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I know this informations. But for sure he have tested that in directly contact to the tube glas, means do not eat a ER21A ! In distance of 10 inches the counter cannot find anything. About this fact my opinion: not dangerous  greetings Martin
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Monarke4
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Post subject: Re: Are some tubes Dangerous Posted: Jul Thu 19, 2012 10:56 pm |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 217
Location: los angeles, california, usa
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MM wrote: I know this informations. But for sure he have tested that in directly contact to the tube glas, means do not eat a ER21A ! In distance of 10 inches the counter cannot find anything. About this fact my opinion: not dangerous greetings Martin I guess I'm not in a hurry to order more of those Cesium Beam Clock Tubes
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Donald R. Resor
N6KAW
www.hammondorganservice.com
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renaissance.man
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Post subject: Re: Are some tubes Dangerous Posted: Jul Fri 20, 2012 3:30 am |
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Joined: Dec Sun 03, 2006 8:16 pm
Posts: 1190
Location: Pittsburgh PA
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Instrument Fixer wrote: Grind on that stuff, create dust and breath it in, you are toast LUNG CANCER NOW Lung cancer is the least of your worries if you are those who are genetically predisposed to developing chronic beryllium disease. Basically, you have to avoid particles smaller than .0003" These are the ones which get trapped in your lungs never to be expelled. From that point the body sets up a very nasty immune response in certain individuals. Golfers should never buff their golf clubs for this very reason. Many heads contain beryllium.
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Ed
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Norm Leal
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Post subject: Re: Are some tubes Dangerous Posted: Jul Fri 20, 2012 6:56 pm |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 28941
Location: Livermore, CA
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