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n/a
deleted
32 Posts |
 Posted - 10/01/2009 : 19:59:50
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When you open up a TV, there is a bulb like thing on the back of the monitor, warped with what looks like a reddish copper. is this copper? if i just break off the wad of reddish wire stuff is it worth anything?
If it is copper, would it be classified as #2 copper or what?
I ask because i took a TV apart and pulled\stripped all the wires out of it, then set it out to be junked, another guy scrapping came and kicked off this bulb of reddish stuff and took it.
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silversaddle1
Penny Pincher Member
USA
103 Posts |
Posted - 10/02/2009 : 05:52:07
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Yes the yoke is copper. And, I might add, that if it was a color TV, then there will also be a loop of copper wire wrapped around the front edge of the tube. It is wrapped in black tape.
Some yards will buy the yoke as #2, but you must get most of the plastic off it first. |
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Kurr
1000+ Penny Miser Member
2906 Posts |
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MatLock
Penny Pincher Member
USA
122 Posts |
Posted - 10/02/2009 : 18:13:14
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Also I would recommend scratching a little corner of the wire.
If it's copper color then good.
But sometimes it is silver-color, and is aluminum.
They even do this right on the ground when I take the yokes to a scrapyard.
The reddish coating on the wire is sometimes deceiving.
Most of the time its copper but it would be disappointing to get Aluminum prices,
or have to re-sort knowing that its mixed lot. |
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1945V
Penny Pincher Member
Canada
153 Posts |
 Posted - 10/11/2009 : 13:44:58
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Kurr is correct.
There are two potential areas on television sets that contain lethal stored voltage, even after the TV has been unplugged for days or weeks.
1) High voltage (15,000 to 25,000 volts) is stored by the picture tube itself. To discharge it. Get a wire with alligator clips at both ends. Clip one end to the chassis and carefully touch the metal contact where the thick red wire enters the picture tube with the other end. You have to carefully lift up the rubber boot (where the red wire enters the tube) with a insulated tool (like a plastic rod) to get at the metal contact entering the picture tube.
2) Low voltage (150 to 400 volts) is stored by the large metal capacitors (sometimes they are bare metal, sometimes they have plastic or paper colored covering). To discharge them . Get a wire with alligator clips at both ends. Clip one end to the chassis and carefully touch the metal contact where terminal(s) marked "+" or positive with the other end.
You will get anything from a gentle to a loud spark depending on how much energy is stored in the capacitor. Of course, only do this on unplugged set |
Edited by - 1945V on 10/11/2009 13:47:10 |
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n/a
deleted
32 Posts |
Posted - 10/11/2009 : 21:58:28
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You don't have a picture of this do you? It would suck to die by TV. :-|
and what about all these copper wrapped plastic things all over the PCB board? if i break these off and throw them in a bag is it #2 copper?
The last TV i took apart let out a loud hiss sound when i pulled the board out. scared the hell out of me. |
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Computer Jones
1000+ Penny Miser Member
USA
1112 Posts |
Posted - 10/12/2009 : 16:46:52
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You need to ground the big wire that's stuck into the side of the picture tube and watch out for the big metal cans/tubes inside the metal "cage" where that wire comes from.
You can usually break the plastic (and the ferrite cores inside the plastic) in the "Copper wrapped plastic things" so the plastic comes out and you have a little spool of Cu wire.
PS-DON'T sniff broken picture tubes if you break one!!!!
There's got to be a vid on u-tube about how to scrap a TV. Google a bit. |
There's profit if you melt things!!
8{> |
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n/a
deleted
32 Posts |
Posted - 10/13/2009 : 21:30:56
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how about i stand about 30 feet away, and shoot at the capacitors with a bb gun? lol, j/k
most of the videos i've found are people blowing up the capacitors, and not discharging them properly. |
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cpthnsolo
Penny Sorter Member
50 Posts |
Posted - 06/18/2010 : 15:34:30
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You must be logged in to see this link. that shows how to safely discharge a TV tube.
If you live in a large city you may find it easier to simply list 19" and 25" monitors on Craig's list for $5 or $10 each as classic arcade game collectors are always needing replacement tubes. This is especially true for old 19" black and white tv's. Just list them on CL and be sure to include the word 'arcade' in the title and they will sell.
Besides this way you're still making a couple of bucks and you're helping someone in need. |
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rambo_k9
Penny Pincher Member
USA
106 Posts |
Posted - 07/10/2010 : 16:54:32
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| TVs that have been unplugged for weeks or months are safe without doing anything to them? Hope that isn't a stupid question. |
Looking for a great summer read?? Stop by www.glennrambo.com You think the US/Mexican border is bad now?? |
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Scraping TV Question
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