Hazards of repair

[Michael A. Terrell]

ian field wrote:

"Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B3E1EA1.7050706@electrooptical.net...
On 1/1/2010 1:45 AM, bob urz wrote:
http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

Fun. Not 100% accurate, though--the getter inside tubes is not mercury,
it's usually sodium metal. Mercury has a high vapour pressure, and was
used in mercury vapour rectifiers and thyratrons, but not in ordinary
tubes. Also there's nothing too nasty about lithium other than that it
burns easily.

Lithium compounds were used as antipsychotic drugs, but apparently they're
pretty nasty stuff and have been replaced with other things.

All traces of Lithium had to removed from the kU band telemetry
equipment we supplied to NASA for the Space Station because they
considered it a health & a safety hazard.


--
Greed is the root of all eBay.

 

[GregS]

In article <hhk5mu$gdk$1@speranza.aioe.org>, bob urz <sound@inetnebr.com> wrote:

http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

I routinly check any centrifuge I work on.

I found my old pentax lens had a high count from its uranium ore coatings.

I remember well the radioactive static eliminators.

greg

 

[Adrian C]

Mike Tomlinson wrote:

In article <4B3E1EF3.3030202@electrooptical.net>, Phil Hobbs <pcdhSpamMe
Senseless@electrooptical.net> writes

Mercury has a high vapour
pressure, and was used in mercury vapour rectifiers

http://en.wikipedia.org/wiki/Mercury_arc_rectifier

There's some fantastic photos of those on the web. I don't care how
safe they are; I'd be very reluctant to go near one, operating or not.

The last one on this page looks like a ghost ...

http://www.subbrit.org.uk/sb-sites/sites/b/belsize_park_deep_shelter/index.shtml
(or http://preview.tinyurl.com/AgRectf )

--
Adrian C

 

[Mike Tomlinson]

In article <7qejvtF58vU1@mid.individual.net>, Adrian C
<email@here.invalid> writes

The last one on this page looks like a ghost ...

Some good demos of working ones at YouTube:

http://www.youtube.com/watch?v=Rt-a8fxgtno
http://www.youtube.com/watch?v=B5NJQXy-qFU&feature=related
http://www.youtube.com/watch?v=UmM68nnP1CU&feature=related

--
(\__/)
(='.'=) Bunny says Windows 7 is Vi$ta reloaded.
(")_(") http://imgs.xkcd.com/comics/windows_7.png

 

[Phil Hobbs]

On 1/2/2010 12:02 PM, ian field wrote:

"Phil Hobbs"<pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B3E1EA1.7050706@electrooptical.net...
On 1/1/2010 1:45 AM, bob urz wrote:
http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

Fun. Not 100% accurate, though--the getter inside tubes is not mercury,
it's usually sodium metal. Mercury has a high vapour pressure, and was
used in mercury vapour rectifiers and thyratrons, but not in ordinary
tubes. Also there's nothing too nasty about lithium other than that it
burns easily.

Lithium compounds were used as antipsychotic drugs, but apparently they're
pretty nasty stuff and have been replaced with other things.


Lithium carbonate is still used for mania. Nobody knows why it works,

but iirc it's still better than anything else.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net

 

[Phil Hobbs]

On 1/2/2010 12:02 PM, ian field wrote:

"Phil Hobbs"<pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B3E1EA1.7050706@electrooptical.net...
On 1/1/2010 1:45 AM, bob urz wrote:
http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

Fun. Not 100% accurate, though--the getter inside tubes is not mercury,
it's usually sodium metal. Mercury has a high vapour pressure, and was
used in mercury vapour rectifiers and thyratrons, but not in ordinary
tubes. Also there's nothing too nasty about lithium other than that it
burns easily.

Lithium compounds were used as antipsychotic drugs, but apparently they're
pretty nasty stuff and have been replaced with other things.


Lithium carbonate is still widely prescribed for treating mania. Nobody

knows why it works, but iirc it's still better than anything else.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net

 

[Phil Hobbs]

On 1/2/2010 12:02 PM, ian field wrote:

"Phil Hobbs"<pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B3E1EA1.7050706@electrooptical.net...
On 1/1/2010 1:45 AM, bob urz wrote:
http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

Fun. Not 100% accurate, though--the getter inside tubes is not mercury,
it's usually sodium metal. Mercury has a high vapour pressure, and was
used in mercury vapour rectifiers and thyratrons, but not in ordinary
tubes. Also there's nothing too nasty about lithium other than that it
burns easily.

Lithium compounds were used as antipsychotic drugs, but apparently they're
pretty nasty stuff and have been replaced with other things.


Lithium carbonate is still widely prescribed for treating mania. Nobody

knows why it works, but iirc it's still better than anything else.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net

 

[ian field]

"Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B46952C.30507@electrooptical.net...

On 1/2/2010 12:02 PM, ian field wrote:
"Phil Hobbs"<pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B3E1EA1.7050706@electrooptical.net...
On 1/1/2010 1:45 AM, bob urz wrote:
http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

Fun. Not 100% accurate, though--the getter inside tubes is not mercury,
it's usually sodium metal. Mercury has a high vapour pressure, and was
used in mercury vapour rectifiers and thyratrons, but not in ordinary
tubes. Also there's nothing too nasty about lithium other than that it
burns easily.

Lithium compounds were used as antipsychotic drugs, but apparently
they're
pretty nasty stuff and have been replaced with other things.


Lithium carbonate is still widely prescribed for treating mania. Nobody
knows why it works, but iirc it's still better than anything else.

Cheers

Phil Hobbs

Was posting the same message 3 times a symptom of mania?

 

[Phil Hobbs]

On 1/8/2010 9:54 AM, ian field wrote:

"Phil Hobbs"<pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B46952C.30507@electrooptical.net...
On 1/2/2010 12:02 PM, ian field wrote:
"Phil Hobbs"<pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4B3E1EA1.7050706@electrooptical.net...
On 1/1/2010 1:45 AM, bob urz wrote:
http://www.bvws.org.uk/405alive/tech/safety.html

I especially like the radioactive turntable....

bob

Fun. Not 100% accurate, though--the getter inside tubes is not mercury,
it's usually sodium metal. Mercury has a high vapour pressure, and was
used in mercury vapour rectifiers and thyratrons, but not in ordinary
tubes. Also there's nothing too nasty about lithium other than that it
burns easily.

Lithium compounds were used as antipsychotic drugs, but apparently
they're
pretty nasty stuff and have been replaced with other things.


Lithium carbonate is still widely prescribed for treating mania. Nobody
knows why it works, but iirc it's still better than anything else.

Cheers

Phil Hobbs

Was posting the same message 3 times a symptom of mania?


No, of Thunderbird. Your guess which kind.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net