CRT implosions

[jpero at sympatico.ca]

> On Tue, 4 Oct 2005, J.C. Wren wrote:
> 
> > Some useful information here:
> > http://repairfaq.ece.drexel.edu/sam/crtfaq.htm#crtcir
> 

> I work with CRTs all day on some days (unfortunately) and once in a while
> a monitor or TV will fall off the pallet I'm stacking, from heights of
> anywhere from a couple feet to 6-7 feet.  In most cases, the case gets
> cracked up pretty bad but the CRT remains intact.  If anything does break,
> it's usually the neck or stem, and you can hear the hiss of the air
> rushing into the back of the tube: nothing to worry about there.  On rare
> occasions, the TV or monitor falls flat on its face, and that usually

> Basically, I'm generally in awe of the durability of CRTs.  I've dropped
> bare CRTs before and they tend to just bounce.  I've dropped monitors that
> then continue to work just fine.
> Sellam Ismail                                        Vintage Computer Festival

My coworker was taking something from shelf and unfortunely he 
snagged a line cord belonging to the 13" tv sitting on top shelf 9 
feet up and yanked it down I was only 10 feet away.  That tv hit the 
cement floor dead center on it's face with a glassine shrill "BOOM!"

Opened it up, yoke & neck went through inside the CRT leaving huge 
jagged hole where flare used to be and only mark on face is scratch 
marks.

I will not forget that sound.  "BOOM!" of air imploding in a instant.

When I am disposing junk CRTs,
Yes, I have heard the "whish!" if neck accidently shattered or the 
long fading sigh of  "whoooosh" or a quick whoosh  if the little pip 
broken or a long, long hiss if someone cracked the pip partially.

I heard of CRT "explode" but my days was before the time when CRT was 
just that, big glass bottles without implosion protection.

Over the years, I have heard of stories of TVs falling.  Some made it 
through, most didn't make it either CRT shadow mask wrecked or 
circuit board in pieces or CRT cracked.  Only one that stuck was a 
older philips TV had chassis completely popped out of it's rails and 
board is completely intact but CRT mask wasn't.  Rails is very 
strong and deep yet board escaped.  Wow.
Plastic didn't make it very often.  BTW, don't drop a Sanyo TV.   :)
Their plastic is complete cr*p, simply shattered into pieces 
like a lead glass.  I even smashed through Sanyo TV cabinet plastic 
when hitting it trying to get it to act up with a flat slap.   :(

Cheers, Wizard