RE: Component Salvage - the TV Sets

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gavin Sandison" <gms-at-eclipse.co.uk> 

I've just had to dispose of three CRTs and found an easy way to release the
vacuum.  I took the back off the TV and set it on some carpet, screen down.
I then removed everything attached to the neck, that might get in the way
(tube connector, coils, ferrite).  Then I wrapped a thick duvet (blanket)
around the whole thing, leaving enough slack to tape it around the neck of
the tube.  With the position of the neck clearly visible, I swung a long,
thick beam of wood at the top of the neck.

In each of the three cases, the necks broke off at the same point - where
they widen into the main tube.  A small amount of the duvet was sucked into
the resulting hole causing the tube to equalise its pressure less rapidly,
in a fairly controlled manner.

This method is somewhat messy as small pieces of glass break off the neck
depending on how hard you strike it.  I have only tried this method with
three TVs so use it at your own risk.  I would expect that, as long as the
duvet was wrapped around the whole TV, a complete implosion would be mostly
contained within.  However, I have seen a TV tube implode whilst inside the
case and as I remember it was pretty scary.  Large pieces of glass at
dangerous velocities.  The 'bang' resulting from the sharp pressure drop in
the air around the TV made my stomach feel as if it had temporarily been
displaced!  I have the spectacle on video, if I ever find it I'll post a
link.

Remember, whenever doing anything that could potentially result in an
explosion, or implosion:  Wear goggles, protective gloves, steel toe-cap
boots, ear plugs and, preferably, a thick leather jacket.

Take care,

Gavin

P.S.  Please don't use your wife's favourite duvet.  The cost of taking a TV
to the dump is substantially less than buying a new feather duvet... lesson
learned. ;)

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: 24 January 2004 21:32
To: tesla-at-pupman-dot-com
Subject: Re: Component Salvage - the TV Set

Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>

They arent really that dangerous as far as I know, I have watched the guys
crush the tubes in the truck before. All in all they have probaly taken away
200 or more tubes for us.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, January 24, 2004 12:47 AM
Subject: RE: Component Salvage - the TV Set


  > Original poster: "Philip Chalk" <phil-at-apsecurity-dot-com.au>
  >
  > All,
  >
  > Wow! Even intact, non-gassy ones ?  They're crazy, & would want good
  > insurance. Can be risky business for 'unskilled', or unaware people to
  > handle large, intact CRTs.
  >
  > As a kid, being the young 'Mad Scientist' of the neighbourhood, &
  > repository for every 'broken' electrical/electronic/electro-mechanical
  > device from friends/family/neighbours, I came up with a few methods of
  > disposal - some more fun than others.
  >
  > My Auntie still has a fruit-bowl cut from the faceplate glass of an old
  > B&W CRT. (I broke it's neck off underwater, for a sort-of 'controlled
  > implosion')
  >
  > Phil Chalk.
  >
  >
  > **************************
  >
  > -----Original Message-----
  >   Subject: Re: Component Salvage - the TV Set
  >
  > Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>
  >
  > Im in the southern US and our garbage service takes tubes with no
  > problem.
  >
  > ***********************
  >
  >
  > Subject: Component Salvage - the TV Set
  >
  >
  >   > Original poster: Matthew Smith <matt-at-kbc-dot-net.au>
  >   >
  >   > Hi All
  >   >
  >   > As one always looking out for "bits" for coiling and other
  > experimentation,
  >   > I've had quite a good find in an old, large TV.  For those on a
  > budget or
  >   > who, like me, like to work as much as possible with recycled
  > components, I
  >   > thought I'd share my finds:
  >
  >
  >