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From: mjj@stda.jhuapl.edu (Marshall Jose)
Newsgroups: sci.electronics
Subject: Re: Zap, fry, and sizzle
Message-ID: <4772@aplcen.apl.jhu.edu>
Date: 22 Feb 90 23:57:28 GMT
References: <799@gold.GVG.TEK.COM>
Sender: news@aplcen.apl.jhu.edu
Reply-To: mjj@aplvax.UUCP (Marshall Jose)
Organization: JHU-Applied Physics Laboratory
Lines: 30

In article <799@gold.GVG.TEK.COM> grege@gold.GVG.TEK.COM (Gregory Ebert) writes:

>CRT's	: From TV's/monitors. Wonderful implosions if dropped into an open
>	manhole or thrown inside a storm-drain tunnel. Vociferous THUD. Must
>	drop on face. 25" color tubes are the best ! Once i chucked one into
>	a concrete ditch, face-first, with 1-1/2" water. IT DIDNT BREAK !

While most of the other items here are pretty harmless, I think the CRT
bashing belongs in the kids-don't-try-this-at-home category.  The forces
and velocities associated with an imploding 25" CRT are difficult to
comprehend, though subsequently leave a lasting impression on the
mind of the smasher.  AND, if the smasher fails to keep a prudent
distance, can make a lasting impression on the tissues and organs
of the smasher.

C'mon, guys, we're talking about razor-sharp fragments flying in
an uncontrolled radial pattern here.  The word "grenade" comes to mind.

When RCA was first making color CRTs, they frequently proof-tested
them with a large pressure chamber, raising the pressure until the
CRT imploded.  The chamber apparatus altogether weighed something
like 4000 lbs, yet would still jump off the floor at the moment
of implosion.

Let's be careful out there.  I don't want to spoil anybody's fun,
but before you do-in a CRT, think beforehand about where the shards
will travel.

Marshall Jose  WA3VPZ
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