Re: [TCML] CRT wire - harvesting safely

["Paul Brodie" <pbbrodie@xxxxxxxxxxxxx>]

I don't know whether this only applies to the particular CRT I was disposing 
of or all of them.

I was dismantling a PC monitor to salvage parts and I noticed that the 
service manual had a section about how to safely dispose of the CRT. It said 
that there is a small recess at the very end of the tube and to take a small 
screw driver and punch it into the recess to release the vacuum. After I 
removed all of the electronics from the rear of the CRT, sure enough, there 
it was. All I had to do was take a screw driver that fit into the recess and 
tap it with a hammer and it went right through. Actually, I don't think I 
had to remove very much to get to the recess, other than the shielding.
Paul
Think Positive

----- Original Message ----- 
From: <mrapol@xxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Sunday, February 07, 2010 6:04 PM
Subject: Re: [TCML] CRT wire - harvesting safely


> I have salvaged wire from CRTs and TVs. With patience you can crack the 
> wire wrapping into its constituent pieces and never damage the CRT itself. 
> The wire is loaded with glue/shellac though. Microwave fan wire is much 
> easier to reuse.
>
> PBT
>
>
> ----- Original Message ----- 
> From: "Jim Mora" <wavetuner@xxxxxxxxx>
> To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
> Sent: Sunday, February 07, 2010 4:54 PM
> Subject: RE: [TCML] CRT wire - harvesting safely
>
>
> > Hi Brian,
> >
> > On older b/w sets, we used to hammer a screwdriver into the end of the
> > electron gun. This may be harder now as the necks are thinner. You 
> > probably
> > can remove the focus clamp etc and then the yoke if you are careful. In 
> > any
> > case, be sure to wear goggles or better yet a safety shield.
> > I did this with a PC monitor recently as I scrap out copper. I was 
> > surprised
> > that the yoke was wound with two sizes of Litz wire and was easily 
> > unwound
> > :-)I won't be scraping that out!
> >
> > Jim Mora
> >
> > Careful is essential like most of the hazards we deal with. Anyone with
> > current vacuum equalization experience please chime in for my benefit 
> > too.
> >
> > -----Original Message-----
> > From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On 
> > Behalf
> > Of Brian Hall
> > Sent: Sunday, February 07, 2010 8:36 AM
> > To: tesla@xxxxxxxxxx
> > Subject: [TCML] CRT wire - harvesting safely
> >
> >
> >
> >
> > I managed to get the CRT out of a little old portable TV, with a 4 by 5 
> > inch
> > screen, and it has lots of lovely copper wire that I want to get out and 
> > use
> > for a secondary coil.  I know these tubes are under a vaccum of sorts and 
> > I
> > will have to melt off a bit of glue and bend off some posts with pliers, 
> > so
> > should I pop the tail end of the tube before I start trying to extract 
> > the
> > wire?  If so what is the safest way to pop a tube or otherwise get at 
> > that
> > wire?
> >
> >
> > ---------------------------------- 
> > Brian Hall
> >
> >
> >
> >
> >
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