My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?
Ted Kaz

wrote in message
oups.com...
My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?
Ted Kaz


Careful handing the tube, it's very heavy, awkward, and will implode
violently if you drop it the wrong way. If it's truly dead beyond repair you
may want to bust the neck off the tube, a good whack with a 2x4 after
unplugging the neck board is all it takes, then it's just a big bottle.
You'll still have to pay somebody to dispose of it though, it's made of
toxic leaded glass.

Well, beware the picture tube. It's dangerous. If you can discharge the
anode contact, do so. after you remove the chassie, lay the set tube face
down and remove the bolts holding the tube in place and lift it out
carefully by it mounting brackets. Do not attempt to remove or care it by
the neck which is to thin. I've read where to way to de-vacuum a tube is
the strike the anode contact and drive it inside the tube. I wouldn't do
anything without having the tube covered with heavy material as protection.
How about a fish tank?

Sometimes it's just a little glass nipple that sticks out the back of
where the CRT plugs in. Those of us who have accidentally broken that
little thing will never forget that sucking air sound that it makes and
often an "Oohh sh--!!!!" is also heard.
Although Jame's idea sounds like more fun.
Check out Sam's site for handling high voltage CRTs also.

Richard

wrote in message
oups.com...
| Sometimes it's just a little glass nipple that sticks out the back of
| where the CRT plugs in. Those of us who have accidentally broken that
| little thing will never forget that sucking air sound that it makes and
| often an "Oohh sh--!!!!" is also heard.

Certainly a better sound than an implosion!

N

Bob wrote in message
ink.net...
wrote

My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?

Well, beware the picture tube. It's dangerous.

Nope.

If you can discharge the anode contact, do so.

No need in that situation. Just make sure its unplugged from the wall.

after you remove the chassie, lay the set tube face down and remove the bolts
holding the tube in place and lift it out carefully by it mounting brackets.
Do not attempt to remove or care it by the neck which is to thin.

I've read where to way to de-vacuum a tube is the strike the anode contact and
drive it inside the tube.

Nope. Its actually better to just break the glass nipple at the
extreme end of the neck after unplugging the socket there.

I wouldn't do anything without having the tube covered with heavy material as
protection.

Not necessary, its very thick glass so that it wont break
easily by something hitting it when used as a TV.

How about a fish tank?

Not practical. While you can certainly cut the neck off,
that doesnt give much access, and you've got the shadow
mask and phosphor that stops you seeing thru it.

"NSM" wrote in message news:0_Myd.13615$nN6.6073@edtnps84...

wrote in message
oups.com...
| Sometimes it's just a little glass nipple that sticks out the back of
| where the CRT plugs in. Those of us who have accidentally broken that
| little thing will never forget that sucking air sound that it makes and
| often an "Oohh sh--!!!!" is also heard.

Certainly a better sound than an implosion!



Been there, done that, didn't quite get enough height on a toss into the
dumpster, my left ear was ringing for a good 30 minutes afterward. Still not
sure how I walked away unscathed. I *always* "let out" the vacuum first now.

On Fri, 24 Dec 2004 15:39:24 +1100, "Rod Speed"
wrote:


Bob wrote in message
link.net...
wrote

My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?

Well, beware the picture tube. It's dangerous.

Nope.

If you can discharge the anode contact, do so.

No need in that situation. Just make sure its unplugged from the wall.

after you remove the chassie, lay the set tube face down and remove the bolts
holding the tube in place and lift it out carefully by it mounting brackets.
Do not attempt to remove or care it by the neck which is to thin.

I've read where to way to de-vacuum a tube is the strike the anode contact and
drive it inside the tube.

Nope. Its actually better to just break the glass nipple at the
extreme end of the neck after unplugging the socket there.

I wouldn't do anything without having the tube covered with heavy material as
protection.

Not necessary, its very thick glass so that it wont break
easily by something hitting it when used as a TV.

How about a fish tank?

Not practical. While you can certainly cut the neck off,
that doesnt give much access, and you've got the shadow
mask and phosphor that stops you seeing thru it.


Since the original question was about recycling the cabinet, your
observation on the use of the picture tube is a non starter. I've
seen several former TV consoles converted to a fishtank cabinet.

Not practical. While you can certainly cut the neck off,
that doesnt give much access, and you've got the shadow
mask and phosphor that stops you seeing thru it.



And the lead in the glass, that and the phosphor would kill the fish in no
time, though you could certainly make a piece of curved plexi (could even
shape it by laying it over the face of the tube and heating it until it
softens and forms to the same shape. Then just construct the rest of the
tank behind it.

"James Sweet" wrote in message
news:szNyd.7650$L7.4233@trnddc05...
|
| "NSM" wrote in message
news:0_Myd.13615$nN6.6073@edtnps84...

| Certainly a better sound than an implosion!

| Been there, done that, didn't quite get enough height on a toss into the
| dumpster, my left ear was ringing for a good 30 minutes afterward. Still
not
| sure how I walked away unscathed. I *always* "let out" the vacuum first
now.

I recall a serviceman in Australia who was unable to convince the homeowners
to leave the room while he changed the tube. After he tripped over their dog
and imploded the tube they were convinced.

N

Bob Ward wrote in message
news
Rod Speed wrote
Bob wrote
wrote

My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?

Well, beware the picture tube. It's dangerous.

Nope.

If you can discharge the anode contact, do so.

No need in that situation. Just make sure its unplugged from the wall.

after you remove the chassie, lay the set tube face down
and remove the bolts holding the tube in place and lift it
out carefully by it mounting brackets. Do not attempt to
remove or care it by the neck which is to thin.

I've read where to way to de-vacuum a tube is the
strike the anode contact and drive it inside the tube.

Nope. Its actually better to just break the glass nipple at the
extreme end of the neck after unplugging the socket there.

I wouldn't do anything without having the tube
covered with heavy material as protection.

Not necessary, its very thick glass so that it wont break
easily by something hitting it when used as a TV.

How about a fish tank?

Not practical. While you can certainly cut the neck off,
that doesnt give much access, and you've got the shadow
mask and phosphor that stops you seeing thru it.

Since the original question was about recycling the cabinet,
your observation on the use of the picture tube is a non starter.

Nope, I was obviously commenting on the other Bob's suggestion.

I've seen several former TV consoles
converted to a fishtank cabinet.

Pity I was commenting on the use of the original TUBE for that.

You would not live long in a TV shop Rod, because you *dont* know the proper
safety procedures concerning the handling of Cathode Ray Tubes.

( unless you enjoy being hit, or the trash man hit by 35,000 volts )

Just unpluging the set does not discharge it !

"NSM" wrote in message news:OCNyd.13621$nN6.1632@edtnps84...

"James Sweet" wrote in message
news:szNyd.7650$L7.4233@trnddc05...
|
| "NSM" wrote in message
news:0_Myd.13615$nN6.6073@edtnps84...

| Certainly a better sound than an implosion!

| Been there, done that, didn't quite get enough height on a toss into the
| dumpster, my left ear was ringing for a good 30 minutes afterward. Still
not
| sure how I walked away unscathed. I *always* "let out" the vacuum first
now.

I recall a serviceman in Australia who was unable to convince the
homeowners
to leave the room while he changed the tube. After he tripped over their
dog
and imploded the tube they were convinced.

N


The glass from an imploded picture tube, can penetrate a wood cabinet. You
can imagine what it could do to eyes, and body. Effectively, it is an
explosion, with shards of glass as shrapnel.

NSM wrote:

wrote:
| Sometimes it's just a little glass nipple that sticks out the back of
| where the CRT plugs in. Those of us who have accidentally broken that
| little thing will never forget that sucking air sound that it makes and
| often an "Oohh sh--!!!!" is also heard.

Certainly a better sound than an implosion!

The best way to appreciate an implosion is to toss the picture tube into
a large dumpster and run away as fast as you can before it hits the
bottom. The WHOOMP is most enjoyable.

--
Cheers, Bev
"""""""""""""""""""""""""""""""""""""""""""""""""" """""""
"They redundantly repeated themselves over and over again
incessantly without end ad infinitum" -- ibid.

"Tim Kett" wrote in message
...
| "NSM" wrote in message
news:OCNyd.13621$nN6.1632@edtnps84...
|
| "James Sweet" wrote in message
| news:szNyd.7650$L7.4233@trnddc05...
| |
| | "NSM" wrote in message
| news:0_Myd.13615$nN6.6073@edtnps84...
|
| | Certainly a better sound than an implosion!
|
| | Been there, done that, didn't quite get enough height on a toss into
the
| | dumpster, my left ear was ringing for a good 30 minutes afterward.
Still
| not
| | sure how I walked away unscathed. I *always* "let out" the vacuum
first
| now.
|
| I recall a serviceman in Australia who was unable to convince the
| homeowners
| to leave the room while he changed the tube. After he tripped over their
| dog
| and imploded the tube they were convinced.
|
| N
|
|
| The glass from an imploded picture tube, can penetrate a wood cabinet. You
| can imagine what it could do to eyes, and body. Effectively, it is an
| explosion, with shards of glass as shrapnel.

It pretty much sprayed the whole room IIRC. He was extremely lucky not to be
shish-kabobbed.

N

"Tim Kett" wrote in message
...

You would not live long in a TV shop Rod, because you *dont* know the
proper
safety procedures concerning the handling of Cathode Ray Tubes.

( unless you enjoy being hit, or the trash man hit by 35,000 volts )

Just unpluging the set does not discharge it !



Usually does, but that's no reason not to discharge it manually to make
sure. Some old B&W monitors will store a charge for a surprising amount of
time, never seen a color one that even made a tick when discharging after it
had sat for 5-10 minutes though.

Tim Kett wrote in
message ...

You would not live long in a TV shop Rod, because
you *dont* know the proper safety procedures
concerning the handling of Cathode Ray Tubes.

You've never had a ****ing clue, child.

( unless you enjoy being hit, or the trash man hit by 35,000 volts )

Just unpluging the set does not discharge it !

Never said it did. It is safe enough tho if you want to wreck it.

James Sweet wrote in
message news:9fPyd.10195$_62.7125@trnddc01...
Tim Kett wrote

You would not live long in a TV shop Rod, because you *dont* know the
proper safety procedures concerning the handling of Cathode Ray Tubes.

( unless you enjoy being hit, or the trash man hit by 35,000 volts )

Just unpluging the set does not discharge it !

Wrong.

Usually does, but that's no reason not
to discharge it manually to make sure.

Not really worth the trouble, it wont kill you even if it doesnt discharge.

Some old B&W monitors will store a charge for a surprising
amount of time, never seen a color one that even made a
tick when discharging after it had sat for 5-10 minutes though.

Precisely.

"Tim Kett" wrote in message
...
"NSM" wrote in message news:OCNyd.13621$nN6.1632@edtnps84...

"James Sweet" wrote in message
news:szNyd.7650$L7.4233@trnddc05...
|
| "NSM" wrote in message
news:0_Myd.13615$nN6.6073@edtnps84...

| Certainly a better sound than an implosion!

| Been there, done that, didn't quite get enough height on a toss into the
| dumpster, my left ear was ringing for a good 30 minutes afterward. Still
not
| sure how I walked away unscathed. I *always* "let out" the vacuum first
now.

I recall a serviceman in Australia who was unable to convince the
homeowners
to leave the room while he changed the tube. After he tripped over their
dog
and imploded the tube they were convinced.

The glass from an imploded picture tube, can penetrate a wood
cabinet. You can imagine what it could do to eyes, and body.
Effectively, it is an explosion, with shards of glass as shrapnel.

More mindless pig ignorance. The screen
has very thick glass for a reason, stupid.

Basically because if the risk was anything like you pig ignorantly claimed,
plenty would end up injured with stuff falling against the tube in normal use.

They dont, its just another silly pig ignorant urban myth.

"The Real Bev" wrote in message
...
NSM wrote:

wrote:
| Sometimes it's just a little glass nipple that sticks out the back of
| where the CRT plugs in. Those of us who have accidentally broken that
| little thing will never forget that sucking air sound that it makes
and
| often an "Oohh sh--!!!!" is also heard.

Certainly a better sound than an implosion!

The best way to appreciate an implosion is to toss the picture tube into
a large dumpster and run away as fast as you can before it hits the
bottom. The WHOOMP is most enjoyable.

--
Cheers, Bev
"""""""""""""""""""""""""""""""""""""""""""""""""" """""""
"They redundantly repeated themselves over and over again
incessantly without end ad infinitum" -- ibid.

We have rubbish bins here, too costly to go o'seas to a 'dumpster'.

--
Regards ..... Rheilly Phoull

"Rod Speed" wrote in message
...

| More mindless pig ignorance. The screen
| has very thick glass for a reason, stupid.
|
| Basically because if the risk was anything like you pig ignorantly
claimed,
| plenty would end up injured with stuff falling against the tube in normal
use.
|
| They dont, its just another silly pig ignorant urban myth.

Sadly it is you who is " pig ignorant ". Over the years various methods of
protection have been tried. Bonded face plates was just one. Other sets used
a separate flat glass in front, or a tensioning band to prestress the face.
All three are capable of implosion if removed from the cabinet and then
impacted. I suggest you return to your hole/rock/whatever.

On Fri, 24 Dec 2004 01:08:58 -0500, "Tim Kett"
wrote:

"NSM" wrote in message news:OCNyd.13621$nN6.1632@edtnps84...

"James Sweet" wrote in message
news:szNyd.7650$L7.4233@trnddc05...
|
| "NSM" wrote in message
news:0_Myd.13615$nN6.6073@edtnps84...

| Certainly a better sound than an implosion!

| Been there, done that, didn't quite get enough height on a toss into the
| dumpster, my left ear was ringing for a good 30 minutes afterward. Still
not
| sure how I walked away unscathed. I *always* "let out" the vacuum first
now.

I recall a serviceman in Australia who was unable to convince the
homeowners
to leave the room while he changed the tube. After he tripped over their
dog
and imploded the tube they were convinced.

N


The glass from an imploded picture tube, can penetrate a wood cabinet. You
can imagine what it could do to eyes, and body. Effectively, it is an
explosion, with shards of glass as shrapnel.



Can you explain how that would work, from a physics point of view? an
IMPLOSION implies that the shrapnel would be drawn INTO the area, not
projected OUTWARDS.

Implosion:
The rapid inward collapsing of the walls of a vacuum system or device
as the result of failure of the walls to sustain the ambient pressure.
http://www.roland.lerc.nasa.gov/~dgl...tionary/i.html

a sudden inward collapse; "the implosion of a light bulb"
www.cogsci.princeton.edu/cgi-bin/webwn


Explosion:
a violent release of energy caused by a chemical or nuclear reaction
www.cogsci.princeton.edu/cgi-bin/webwn


the act of exploding or bursting something; "the explosion of the
firecrackers awoke the children"; "the burst of an atom bomb creates
enormous radiation aloft"
www.cogsci.princeton.edu/cgi-bin/webwn

A rupture of a pressure vessel of some kind due to excessive internal
pressure (usually accompanied by a loud noise).
www.federated.ca/gloss/e.htm

A very rapid reaction accompanied by a large expansion of gases.
http://www.nsb.northants.sch.uk/Web%...Dictionary.htm


A chemical reaction of any chemical compound or mechanical mixture
that, when initiated, undergoes a very rapid combustion or
decomposition, releasing large volumes of highly heated gases that
exert pressure on the surrounding medium. Also, a mechanical reaction
in which failure of the container causes sudden release of pressure
from within a pressure vessel. Depending on the rate of energy
release, an explosion can be categorized as a deflagration, a
detonation, or pressure rupture.
https://www.denix.osd.mil/denix/Publ.../glossary.html

(Explosion) Sudden and violent tearing asunder caused by gas or
compressed air. This peril is usually insured under policies covering
fire.
www.aon.ca/english/plines_include/glossarye.htm

the sudden and rapid production of gas, heat and noise, and many times
a shock wave, within a confined space.
http://www.wombat.cusd.chico.k12.ca....sglossary.html

On Fri, 24 Dec 2004 16:21:36 +1100, "Rod Speed"
wrote:


Bob Ward wrote in message
news
Rod Speed wrote
Bob wrote
wrote

My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?

Well, beware the picture tube. It's dangerous.

Nope.

If you can discharge the anode contact, do so.

No need in that situation. Just make sure its unplugged from the wall.

after you remove the chassie, lay the set tube face down
and remove the bolts holding the tube in place and lift it
out carefully by it mounting brackets. Do not attempt to
remove or care it by the neck which is to thin.

I've read where to way to de-vacuum a tube is the
strike the anode contact and drive it inside the tube.

Nope. Its actually better to just break the glass nipple at the
extreme end of the neck after unplugging the socket there.

I wouldn't do anything without having the tube
covered with heavy material as protection.

Not necessary, its very thick glass so that it wont break
easily by something hitting it when used as a TV.

How about a fish tank?

Not practical. While you can certainly cut the neck off,
that doesnt give much access, and you've got the shadow
mask and phosphor that stops you seeing thru it.

Since the original question was about recycling the cabinet,
your observation on the use of the picture tube is a non starter.

Nope, I was obviously commenting on the other Bob's suggestion.

I've seen several former TV consoles
converted to a fishtank cabinet.

Pity I was commenting on the use of the original TUBE for that.

Pity you couldn't follow the discussion.

Usually does, but that's no reason not
to discharge it manually to make sure.

Not really worth the trouble, it wont kill you even if it doesnt
discharge.



Won't kill you but it might well scare the crap out of you and cause the TV
to be dropped on your foot. I always discharge a tube before handling it,
I've been zapped a few times by being careless, wasn't hurt but it wasn't
pleasant in the least. I have sliced my hand open pretty good a couple times
jerking back from a minor shock.

"Bob Ward" wrote in message
...
On Fri, 24 Dec 2004 16:21:36 +1100, "Rod Speed"
wrote:


Bob Ward wrote in message
news
Rod Speed wrote
Bob wrote
wrote

My 18 year old 27" Sony bought the farm, but it has a nice
wood cabinet. I'd like to pull the tube and circuit cards and
make a book case out of the wood cabinet. Any hints or cautions?

Well, beware the picture tube. It's dangerous.

Nope.

If you can discharge the anode contact, do so.

No need in that situation. Just make sure its unplugged from the wall.

after you remove the chassie, lay the set tube face down
and remove the bolts holding the tube in place and lift it
out carefully by it mounting brackets. Do not attempt to
remove or care it by the neck which is to thin.

I've read where to way to de-vacuum a tube is the
strike the anode contact and drive it inside the tube.

Nope. Its actually better to just break the glass nipple at the
extreme end of the neck after unplugging the socket there.

I wouldn't do anything without having the tube
covered with heavy material as protection.

Not necessary, its very thick glass so that it wont break
easily by something hitting it when used as a TV.

How about a fish tank?

Not practical. While you can certainly cut the neck off,
that doesnt give much access, and you've got the shadow
mask and phosphor that stops you seeing thru it.

Since the original question was about recycling the cabinet,
your observation on the use of the picture tube is a non starter.

Nope, I was obviously commenting on the other Bob's suggestion.

I've seen several former TV consoles
converted to a fishtank cabinet.

Pity I was commenting on the use of the original TUBE for that.

Pity you couldn't follow the discussion.

Even you should be able to bull**** your way out
of your predicament better than that pathetic effort.

"Rod Speed" wrote in message
...

"Tim Kett" wrote in message
...
"NSM" wrote in message
news:OCNyd.13621$nN6.1632@edtnps84...

"James Sweet" wrote in message
news:szNyd.7650$L7.4233@trnddc05...
|
| "NSM" wrote in message
news:0_Myd.13615$nN6.6073@edtnps84...

| Certainly a better sound than an implosion!

| Been there, done that, didn't quite get enough height on a toss into
the
| dumpster, my left ear was ringing for a good 30 minutes afterward.
Still
not
| sure how I walked away unscathed. I *always* "let out" the vacuum
first
now.

I recall a serviceman in Australia who was unable to convince the
homeowners
to leave the room while he changed the tube. After he tripped over
their
dog
and imploded the tube they were convinced.

The glass from an imploded picture tube, can penetrate a wood
cabinet. You can imagine what it could do to eyes, and body.
Effectively, it is an explosion, with shards of glass as shrapnel.

More mindless pig ignorance. The screen
has very thick glass for a reason, stupid.

Basically because if the risk was anything like you pig ignorantly
claimed,
plenty would end up injured with stuff falling against the tube in normal
use.

They dont, its just another silly pig ignorant urban myth.



When the tube is installed in the set, there's a very slim chance of
implosion, once removed though all bets are off. The bell of the tube is
fragile and has no internal protection. Believe me, I know, I've had a tube
implode not 3 feet from my head and it's something I'll never forget. I've
imploded a couple other dead tubes from a distance by tossing small rocks at
the bell, it really doesn't take much. Now instead of calling people stupid
how about you just relax? The chances may be slim, but if you tell someone
to be careless and they manage to hurt themselves they can come sue you. Not
a risk I'm personally willing to take.

The glass from an imploded picture tube, can penetrate a wood cabinet.
You
can imagine what it could do to eyes, and body. Effectively, it is an
explosion, with shards of glass as shrapnel.



Can you explain how that would work, from a physics point of view? an
IMPLOSION implies that the shrapnel would be drawn INTO the area, not
projected OUTWARDS.

Implosion:
The rapid inward collapsing of the walls of a vacuum system or device
as the result of failure of the walls to sustain the ambient pressure.
http://www.roland.lerc.nasa.gov/~dgl...tionary/i.html


Yes, easily. Just where do you suppose all the glass goes when it's flying
inwards? Does it all collide in a little ball in the middle and fall to the
ground? Of course not, the shards fly past each other and continue in every
direction until they hit something (wall, your face, air friction, etc) that
absorbs their energy. The violence of a CRT implosion is something that
simply can't be appreciated without seeing it, with over 14 pounds pressing
in on every square inch of the tube (and there's more square inches than it
looks like) that's a LOT of potential energy.

"Bob Ward" wrote in message
...

| Can you explain how that would work, from a physics point of view? an
| IMPLOSION implies that the shrapnel would be drawn INTO the area, not
| projected OUTWARDS.

.... [tedious references from websites clipped] ...

Yes, we all know what an implosion is. What do you think happens to all the
shrapnel? That it forms a little ball and hovers in space? That it cancels
itself out?

See
http://global.mitsubishielectric.com...985_01_01.html

"... In the early 1980's, the mainstream technology for televisions with
screens 30 inches or larger was the use of rear projection systems both in
the Japanese and North American markets. The reason was simply because it
was impossible from a practical application standpoint to employ the use of
CRT technology in the manufacture of TVs that size. The production of a
larger CRT monitor becomes exponentially difficult in terms of weight and
strength. A vacuum state exists inside of a CRT, and the high atmospheric
pressure required for larger CRTs also multiplies the dangers of implosion.
The most popular and safest size for large CRT-based TVs was 28 inches. In
contemplating the production of a 37-inch model, the development team
determined that the general strength would have to be four- to fivefold that
of the 28-inch TV; an extremely high engineering hurdle to clear. ..."

BTW, "... and the high atmospheric pressure required for larger CRTs ..." is
an error. The static pressure is the same, but the total pressure summed
over the tube increases. The likelihood of breakage increases also due to
mechanical and weight problems.

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

Search for (dangers implosion tv tube) for more.

James Sweet wrote in
message news:vQZyd.2927$Y57.2187@trnddc08...

Usually does, but that's no reason not
to discharge it manually to make sure.

Not really worth the trouble, it wont kill you even if it doesnt discharge.

Won't kill you but it might well scare the crap out of
you and cause the TV to be dropped on your foot.

You're very unlikely indeed to be holding it where
its likely to drop on your foot if it does bite you.

I always discharge a tube before handling it,

Sure, some are excessively cautious like that.

I personally take more risks, including building my house
in the summer just wearing shorts and what we call thongs,
most of the time, even when welding overhead on the steel
structure of the house. Sure, it was a bit of a nuisance when
one bit of slag ended up between my toes with me standing
on a ladder welding, but just a nuisance.

On another occasion I ended up with significant
sunburn on my legs because I was welding quite
a bit of stuff on the ground with me sitting with my
legs on either side of the work too. Just a nuisance.

I've been zapped a few times by being careless, wasn't hurt
but it wasn't pleasant in the least. I have sliced my hand open
pretty good a couple times jerking back from a minor shock.

Cant say I ever have, and I dont normally bother to discharge
the tube unless I actually have a faulty HT lead etc.

"Rod Speed" wrote in message
...

| Sure, some are excessively cautious like that.
|
| I personally take more risks, including building my house
| in the summer just wearing shorts and what we call thongs,
| most of the time, even when welding overhead on the steel
| structure of the house. Sure, it was a bit of a nuisance when
| one bit of slag ended up between my toes with me standing
| on a ladder welding, but just a nuisance.
|
| On another occasion I ended up with significant
| sunburn on my legs because I was welding quite
| a bit of stuff on the ground with me sitting with my
| legs on either side of the work too. Just a nuisance.

Do you work with explosives?

"There are old dynamiters and there are bold dynamiters, but there are no
old, bold dynamiters".

N

NSM wrote in message
news:no_yd.20884$KO5.6979@clgrps13...
Rod Speed wrote

Sure, some are excessively cautious like that.

I personally take more risks, including building my house
in the summer just wearing shorts and what we call thongs,
most of the time, even when welding overhead on the steel
structure of the house. Sure, it was a bit of a nuisance when
one bit of slag ended up between my toes with me standing
on a ladder welding, but just a nuisance.

On another occasion I ended up with significant
sunburn on my legs because I was welding quite
a bit of stuff on the ground with me sitting with my
legs on either side of the work too. Just a nuisance.

Do you work with explosives?

Yep, and light plane flying too. I only take risks when
the worst result is a nuisance, not when its fatal etc.

I choose not to ride motorbikes, because the consequences
of someone else's stupidity can be fatal. With a car you have
rather more protection if someone does something stupid.

"There are old dynamiters and there are bold
dynamiters, but there are no old, bold dynamiters".

There are however plenty who only take risks when
the worst consequence is no more than a nuisance.

"Rod Speed" wrote in message
...

NSM wrote in message
news:no_yd.20884$KO5.6979@clgrps13...
Rod Speed wrote

Sure, some are excessively cautious like that.

I personally take more risks, including building my house
in the summer just wearing shorts and what we call thongs,
most of the time, even when welding overhead on the steel
structure of the house. Sure, it was a bit of a nuisance when
one bit of slag ended up between my toes with me standing
on a ladder welding, but just a nuisance.

On another occasion I ended up with significant
sunburn on my legs because I was welding quite
a bit of stuff on the ground with me sitting with my
legs on either side of the work too. Just a nuisance.

Do you work with explosives?

Yep, and light plane flying too. I only take risks when
the worst result is a nuisance, not when its fatal etc.

I choose not to ride motorbikes, because the consequences
of someone else's stupidity can be fatal. With a car you have
rather more protection if someone does something stupid.

I also work on mains wiring when its powered too when
that makes sense. And ours is a 240/415 system.

Much of the routine maintenance on overhead powerlines
is done with the lines active too, even up to 330KV.

"There are old dynamiters and there are bold
dynamiters, but there are no old, bold dynamiters".

There are however plenty who only take risks when
the worst consequence is no more than a nuisance.

James Sweet wrote
in message news:4TZyd.2928$Y57.21@trnddc08...
Rod Speed wrote
Tim Kett wrote
NSM wrote
James Sweet wrote
NSM wrote

Certainly a better sound than an implosion!

Been there, done that, didn't quite get enough height on a toss
into the dumpster, my left ear was ringing for a good 30 minutes
afterward. Still not sure how I walked away unscathed.

Pretty obvious really, its not as bad as the myth claims.

I *always* "let out" the vacuum first now.

I recall a serviceman in Australia who was unable
to convince the homeowners to leave the room while
he changed the tube. After he tripped over their dog
and imploded the tube they were convinced.

Just another urban myth. Never happened.

The glass from an imploded picture tube, can penetrate a wood
cabinet. You can imagine what it could do to eyes, and body.
Effectively, it is an explosion, with shards of glass as shrapnel.

Nope, its an implosion.

More mindless pig ignorance. The screen
has very thick glass for a reason, stupid.

Basically because if the risk was anything like you
pig ignorantly claimed, plenty would end up injured
with stuff falling against the tube in normal use.

They dont, its just another silly pig ignorant urban myth.

When the tube is installed in the set,
there's a very slim chance of implosion,

Zero in fact. Like I said, they're designed with very thick
glass for a reason, so some stupid kid wont end up dead
when it manages to slam something into the screen etc.

once removed though all bets are off.

Nope, its nothing like the risk that is mindlessly hyperventilated about.

The bell of the tube is fragile

Wrong.

and has no internal protection.

Waffle.

Believe me,

No thanks.

I know,

No you dont.

I've had a tube implode not 3 feet from my head

Plenty have deliberately broken them.

and it's something I'll never forget.

Your neurotic fears are your problem.

I've imploded a couple other dead tubes from a distance
by tossing small rocks at the bell, it really doesn't take much.

Irrelevant to what is likely to happen when removing
the tube to use the cabinet for something else.

And I already said that it makes sense to let the
vaccuum out by snapping off the glass tit thats under
the socket on the extreme end of the neck tube.

Now instead of calling people stupid how about you just relax?

Perfectly relaxed thanks. I call spades spades and stupids stupids.

You get to like that or lump it.

The chances may be slim, but if you tell someone to be careless
and they manage to hurt themselves they can come sue you.

Wrong again.

Not a risk I'm personally willing to take.

Your silly neurotic fears are your problem.
Always have been, always will be.

I choose to provide sensible information and if
some fool comes unstuck, thats that fool's problem.

You get to like that or lump that too.

In sci.electronics.repair Rod Speed wrote:
Basically because if the risk was anything like you pig ignorantly claimed,
plenty would end up injured with stuff falling against the tube in normal use.

The front is by far the strongest part. Also, modern tubes have some
implosion protection, they will implode however when struck in the right
way, just a bit less impressive compared to the older ones.

---
Met vriendelijke groet,

Maarten Bakker.

James Sweet wrote in
message news:7XZyd.2929$Y57.2927@trnddc08...

The glass from an imploded picture tube, can penetrate a wood
cabinet. You can imagine what it could do to eyes, and body.
Effectively, it is an explosion, with shards of glass as shrapnel.

Can you explain how that would work, from a physics point
of view? an IMPLOSION implies that the shrapnel would
be drawn INTO the area, not projected OUTWARDS.

Implosion:
The rapid inward collapsing of the walls of a vacuum system or device
as the result of failure of the walls to sustain the ambient pressure.
http://www.roland.lerc.nasa.gov/~dgl...tionary/i.html

Yes, easily. Just where do you suppose all the glass goes when it's
flying inwards? Does it all collide in a little ball in the middle and fall
to the ground? Of course not, the shards fly past each other and
continue in every direction until they hit something (wall, your face, air
friction, etc) that absorbs their energy. The violence of a CRT implosion
is something that simply can't be appreciated without seeing it, with over
14 pounds pressing in on every square inch of the tube (and there's more
square inches than it looks like) that's a LOT of potential energy.

And the reality is that its normally the neck that gets broken and the
worst that normally happens is that the cathode ends up hitting the
inside of the front surface and leaves a rather interesting pattern there.

Just recently seen a french doco where povs were scavenging from
discarded TVs, basically ratting them for the yokes for the copper,
in big piles of discarded TVs. They were pretty gung ho getting into
the case, basically smashing the back off with a small wrecking bar
etc, just to get in quickly. A few of the TVs did end up with the neck
broken in the process and with a rather interesting pattern on the
screen where the cathode had obviously hit it.

No big deal and no need to curl up under your bed cowering in fear.

NSM wrote in message
news:QXZyd.20652$KO5.19180@clgrps13...

See
http://global.mitsubishielectric.com...985_01_01.html

"... In the early 1980's, the mainstream technology for televisions with
screens 30 inches or larger was the use of rear projection systems both
in the Japanese and North American markets. The reason was simply
because it was impossible from a practical application standpoint to
employ the use of CRT technology in the manufacture of TVs that size.

Have fun explaining my 33" glass tube widescreen TV.

So much for this mindless waffle.

The production of a larger CRT monitor becomes exponentially
difficult in terms of weight and strength. A vacuum state exists
inside of a CRT, and the high atmospheric pressure required for
larger CRTs also multiplies the dangers of implosion. The most
popular and safest size for large CRT-based TVs was 28 inches.

Pathetic, really.

In contemplating the production of a 37-inch model, the development team
determined that the general strength would have to be four- to fivefold that
of the 28-inch TV; an extremely high engineering hurdle to clear. ..."

Others managed it fine, even if you clowns couldnt.

BTW, "... and the high atmospheric pressure
required for larger CRTs ..." is an error.

Yep, that entire quote is a pig ignorant steaming turd.

The static pressure is the same, but the total
pressure summed over the tube increases.

Whoopy do.

The likelihood of breakage increases also
due to mechanical and weight problems.

And its perfectly possible to produce a viable design anyway.

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

Search for (dangers implosion tv tube) for more.

No thanks, just more mindless neurotic silly stuff.

"Rod Speed" wrote in message
...

| Yep, that entire quote is a pig ignorant steaming turd.

PLONK!

wrote in message
...
In sci.electronics.repair Rod Speed wrote:
Basically because if the risk was anything like you pig ignorantly
claimed,
plenty would end up injured with stuff falling against the tube in
normal use.

The front is by far the strongest part. Also, modern tubes have some
implosion protection, they will implode however when struck in the right
way, just a bit less impressive compared to the older ones.

---
Met vriendelijke groet,

Maarten Bakker.

So true about the faceplate being rugged. My nephew shot a bb gun in the
family room and hit my brother's Quasar's tv screen. Put a nice chip in it,
not unlike a stone chip in a car windshield. I told my brother to get it
fixed asap, could be dangerous. He used the tv for about 10 more years, the
damage was in the corner, no big deal! Sheesh, what an idiot! My nephew had
a big footprint on his ass for a few days afterwards.
Tom

NSM wrote in message
news:hi%yd.21005$KO5.11046@clgrps13...
Rod Speed wrote

Yep, that entire quote is a pig ignorant steaming turd.

PLONK!

Fat lot of good that will you do you, you stupid pig ignorant plonker.

You seriously 'think' that anyone actually gives
a flying red **** what you do or do not read ?

"Rod Speed" wrote in message
...

"Tim Kett" wrote in message
...
"NSM" wrote in message
news:OCNyd.13621$nN6.1632@edtnps84...

"James Sweet" wrote in message
news:szNyd.7650$L7.4233@trnddc05...
|
| "NSM" wrote in message
news:0_Myd.13615$nN6.6073@edtnps84...

| Certainly a better sound than an implosion!

| Been there, done that, didn't quite get enough height on a toss into
the
| dumpster, my left ear was ringing for a good 30 minutes afterward.
Still
not
| sure how I walked away unscathed. I *always* "let out" the vacuum
first
now.

I recall a serviceman in Australia who was unable to convince the
homeowners
to leave the room while he changed the tube. After he tripped over
their
dog
and imploded the tube they were convinced.

The glass from an imploded picture tube, can penetrate a wood
cabinet. You can imagine what it could do to eyes, and body.
Effectively, it is an explosion, with shards of glass as shrapnel.

More mindless pig ignorance. The screen
has very thick glass for a reason, stupid.

Basically because if the risk was anything like you pig ignorantly
claimed,
plenty would end up injured with stuff falling against the tube in normal
use.

They dont, its just another silly pig ignorant urban myth.



Oh, well maybe my electronics instructor lied, but I doubt it.