4 Oct
2005
4 Oct
'05
2:07 p.m.
Some useful information here:
http://repairfaq.ece.drexel.edu/sam/crtfaq.htm#crtcir
--jc
Jules Richardson wrote:
Tony Duell wrote:
At least one person here has used a thin wire to
cut the bonding,
then removed the front piece of glass, cleaned it up, and rebonded
it. It sounds like a dangerous project to me, not only because the
CRT could implode while you're cutting it, but also if you don't get
the bonding strong enough when you put it back together and the CRT
then subsequnectly implodes, the results would be very unpleasant.
That does beg the question of under what conditions a CRT implodes. Do
age-related implosions happen (or implosions for other reasons other
than mechanical shock)? I've never heard of a CRT imploding, except
for when physical damage has occured to it - but presumably it does
happen.
In other words what are the risks - or is it a case of
over-engineering in the first place to make sure (to a reasonable
extent) that there are no problems out in user-land?
Also curious as to the extent of the outward blast / debris field
(that sounds horribly technical but I can't think of a better phrase!)
when a CRT does implode. I'd *assume* glass just extends outward a
foot or two, but happy to be corrected there! (of course an explosion
would be a rather different matter)
Actually, is the faceplate actually there for dsamage limitation
reasons - or in fact there to help prevent implosion in the first
place from mechanical shock? I imagine that coupled with the sealant
layer it provides a reasonable damper if the CRT is dropped with
face-down.
Any people on the list involved (past or present)with CRT manufacture
who can provide more information?
cheers
Jules