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Canadian_Nickle
Penny Hoarding Member
Canada
938 Posts |
 Posted - 09/03/2007 : 23:57:28
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I'm trashing about 8 old monitors (c64 era) - is there enough metal in there to make it worth opening them?
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C. Montgomery Burns
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Edited by - Canadian_Nickle on 09/03/2007 23:58:01 |
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Hirbonzig
Penny Collector Member
USA
451 Posts |
Posted - 09/24/2007 : 11:56:52
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| Picked up a monitor that said "free take me" sitting on the curb today. I will dismantle it the next few days to see how much copper is in it. |
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Hirbonzig
Penny Collector Member
USA
451 Posts |
Posted - 09/26/2007 : 11:08:39
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| The monitor had about 275 grams (0.60 lbs) in the big windings behind the tube and other small windings that maybe add up to 0.10 lb. Overall with the wiring and windings there is about a pound of copper. To me it seemed like a lot of work for a pound of copper, but it is more than I had before. |
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pencilvanian
1000+ Penny Miser Member
USA
2209 Posts |
Posted - 09/26/2007 : 13:53:02
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were there any other goodies besides copper in the monitor?
Starve the Trolls, don't feed or encourage them.
Destroy the Moonbat breeding caves.
Moonbat, A winged troll. |
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Hirbonzig
Penny Collector Member
USA
451 Posts |
Posted - 09/27/2007 : 23:23:33
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quote:
Originally posted by pencilvanian
were there any other goodies besides copper in the monitor?
Starve the Trolls, don't feed or encourage them.
Destroy the Moonbat breeding caves.
Moonbat, A winged troll.
I was'nt looking for anything but copper, but I kept the circuit boards. Maybe one of the chips has value? Any electronics guys out there that know of any value to chips in a monitor/computer? |
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Canadian_Nickle
Penny Hoarding Member
Canada
938 Posts |
Posted - 09/28/2007 : 01:14:14
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They hurt if you step on them with bare feet. That's gotta be worth something. Look at lego!
Seriously, though, little melt value on a circuit board. Maybe a tiny bit of silver in the soldier, but tough to reclaim. In third world countries they do burn old circuitboards to extract what little metal there is, but it's a very dirty and involved process, I'd imagine. CPUs and maybe some GPUs from video cards may have some gold in them, especially older ones.
________________________
"A nickel's nothing to scoff at."
C. Montgomery Burns
HoardCode0.1: M28/5CAON:CA5Ni35000:CA1Cu1200:CA100Ag345:
CA10Ag250:CA50Ag100:CA25Ag30:CA500Ag48:US100Ag20:CA1000Ag16
How to read a HoardCode:
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Edited by - Canadian_Nickle on 09/28/2007 01:16:06 |
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El Dee
Penny Hoarding Member
USA
547 Posts |
Posted - 11/27/2007 : 14:40:30
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You've got 4 coils, (2 inner and 2 outer clamped together) on the back of the tube. Cut the wire connections off with side-cutters, then they'll slip off the tube. Then you can pop the metal clips that hold the black ferrite together and break the plastic from the coils with your Channellock or whatever tool works best. If the ferrite is stuck with glue crap, put the coils and magnets in a paper bag and smash gently with a hammer. Be careful, the ferrite shards are literally like glass.
As a bonus, don't forget the big copper wire degaussing ring around the front of the tube, which is almost as much as the back coils. It's held together with wrapped electrical tape. In all, you might have a pound of copper.
Also, there are aluminum heat sinks for a few extra twists of a plier. The key is to get all this stripped out in as little time as possible. Then screw the monitor back together and dispose of properly.
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Trust the government? Ask an Indian. |
Edited by - El Dee on 11/28/2007 10:40:59 |
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fiatboy
Administrator
912 Posts |
Posted - 11/28/2007 : 01:00:11
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Welcome, El Dee. And thanks for the info. I have a few old monitors gathering dust, but now I think I'll bust 'em open and see what kind of goodies I can find! Any suggestions for old computers, specifically an IBM XT 8088, and some early '90's Macs? I know I could probably sell them, but opening them up and having a looksee is so much more fun.  |
"Bart, it's not about how many stocks you have, it's about how much copper wire you can get out of the building." --- Homer Simpson |
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El Dee
Penny Hoarding Member
USA
547 Posts |
Posted - 11/28/2007 : 11:11:55
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All computers have a power supply, which is inside the small metal box within the computer shell. Within this is a transformer that takes the wall current and steps it down to the current the computer operates on.
Transformers are mostly laminated sheet steel with copper windings trapped inside. Scrappers will give you a small price per pound like they do for electric motors.
A couple of narrow weld beads on the side holds the laminate together. Usually, the laminates are shaped like a capital letter 'E' on one side and a smaller segment which caps the other side. If you're adventurous, you can take a hand grinder and zip off these welds, and the side will fall away. Examination will reveal which side to grind. Then, the windings can be slipped out, and you can unwind the copper coil, or just break the plastic free from it.
But, you have to ask yourself if a half-hour of work is worth $1 or $2 of copper. It might make more sense just to accumulate the transformers. |
Trust the government? Ask an Indian. |
Edited by - El Dee on 11/28/2007 13:13:40 |
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4 Posts |
Posted - 01/09/2008 : 00:52:16
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Several states now have laws on the books regarding discarding monitors. In those states, the disposer is charged $5 per monitor to take it to the scrapyard. With copper in the high $2s per pound actual received, that is a losing proposition.
The 2 biggest problems with CRT tubes' scrapping is A) the danger of explosion of the tube, B) the amount of electrical charge that CAN remain in a "recently utilized but now in the scrap heap" CRT tube. Always remove the nipple to allow escape of pressure, and always safely discharge the electrical charge before further reduction of scrapped CRTs.
All states have laws against carrying Monitors in the passenger cavity of an automotive conveyance.
The biggest gripe against monitors is that there is considerable amount of LEAD in the composition of the glass CRT tube. I suggest dropping a concrete block on one after it has
been placed in a METAL 5gal bucket.
Just some practical hints from a been there, done that, got the T-Shirt scrapper. |
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NiBullionCu
Penny Pincher Member
USA
168 Posts |
Posted - 01/09/2008 : 13:06:17
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quote:
A) the danger of explosion of the tube...
Not to pick nits, but I think you mean implode, not explode.
Also the Tubes are not under "pressure", but a vacuum.
But your safety concerns are dead-on. An "imploding" CRT monitor can still throw shrapnel like an explosion, so heed dirtycopperas and be careful. |
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just carl
Penny Hoarding Member
USA
601 Posts |
Posted - 02/20/2008 : 08:35:18
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| For the amount of material that is usable in old monitors or computers, you would have to have lot of time and space to take them all apart. This is why there are so many just dumped by the mass. Usually they are just smashed, melted into nothingness. just not worth the time, effort, cost in your electric bills to dismantle them. You may get cuts doing this and the additional cost of a bandage just makes it all not worth the effort. Life is way to short to waste it on a few cents which makes no CENTS. |
Carl |
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26 Posts |
Posted - 03/29/2008 : 21:49:40
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| I was looking at the scrap prices the other day and it listed plastic`s . Several kinds the from about .07- .14¢ per pound . Wondering if anyone is salvaging any plastics to sell ? ...Rick |
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12 Posts |
Posted - 03/29/2008 : 22:17:03
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I actually like dealing with old computers and currently have several sources from which i purchase them.
circuit boards - approx $1 per pound
gold fingers - $35 per pound
insulated copper = 1.20 per pound
cpu's - $5-$10 per pound
IC chips - up to $20 per pound
memory stciks - $5=$10 per pound
steel towers - .10 per pound
aluminum extrusion heat sinks - .85 per pound
plus sell working parts
last week sold power cord to gateway profile 4 computer for $37.00 |
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PennehChaos.
Penny Collector Member
USA
269 Posts |
Posted - 03/31/2008 : 12:50:02
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quote:
Originally posted by clwp4973
gold fingers - $35 per pound
Does this refer to CPU pins, or something else? I haven't encountered that term before.
i have a certain affection for old computers, especially servers... you'd be surprised by how many parts on my chopper are made from old computer case panels  |
Considering Verizon Business service? Perhaps you'd like to consider a nice drain cleaner enema instead? |
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26 Posts |
Posted - 03/31/2008 : 14:32:16
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| I see memory sticks listed on ebay , but there are gold fingers on most of the boards that plug into the motherboards....Rick |
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12 Posts |
Posted - 03/31/2008 : 17:34:47
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gold fingers are the male connecters that are on cards (sound cards graphic cards video cards ans so on) the plug into the female end on the circuit board.
gold plated pins also have a value
search ebay for gold fingers and gold pins and cpu's
it might shock you |
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knibloe
1000+ Penny Miser Member
USA
1066 Posts |
Posted - 04/01/2008 : 21:56:44
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quote:
Originally posted by RAlex
I was looking at the scrap prices the other day and it listed plastic`s . Several kinds the from about .07- .14¢ per pound . Wondering if anyone is salvaging any plastics to sell ? ...Rick
With the price of oil where it is plastic recycling could be big business to scrappers. Does anyone know where There is a market for large quantities of # 2 plastic? |
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PennehChaos.
Penny Collector Member
USA
269 Posts |
Posted - 04/02/2008 : 12:32:50
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clwp- wow, I had no idea! I always seem to find these things out *after* i discard a big pile of stuff. Hm, the attendant at the local dump doesn't watch the electronics drop-off nearly as closely as she does the metal drop-off.......
knibloe- look here
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and
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for values on large quantities of plastic scrap. #2 plastic is HDPE. If you've got a large lot of plastic (truckload +) that's clean and of the same color, it's pretty marketable. |
Considering Verizon Business service? Perhaps you'd like to consider a nice drain cleaner enema instead? |
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91 Posts |
Posted - 04/02/2008 : 18:50:18
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there are seeral places here in mi that will purchase your plastic.
prices vary from place to place and by quanity.
do a google search for scrap plastic buyers
Here i can get about .18 per pound for hdpe plastic which includes plastic pallets drums barrels and such. |
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26 Posts |
Posted - 04/04/2008 : 19:58:19
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| I went to MSN yellow pages and put in "Plastic Recycling" and had 5 hits in central NY. Not sure of any prices because none of them are open at this hour. It is something that one should keep in mind if ya are stripping a lot of monitors...Rick |
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n/a
deleted
110 Posts |
Posted - 04/05/2008 : 04:29:22
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quote:
Originally posted by El Dee
All computers have a power supply, which is inside the small metal box within the computer shell. Within this is a transformer that takes the wall current and steps it down to the current the computer operates on.
Transformers are mostly laminated sheet steel with copper windings trapped inside. Scrappers will give you a small price per pound like they do for electric motors.
A couple of narrow weld beads on the side holds the laminate together. Usually, the laminates are shaped like a capital letter 'E' on one side and a smaller segment which caps the other side. If you're adventurous, you can take a hand grinder and zip off these welds, and the side will fall away. Examination will reveal which side to grind. Then, the windings can be slipped out, and you can unwind the copper coil, or just break the plastic free from it.
But, you have to ask yourself if a half-hour of work is worth $1 or $2 of copper. It might make more sense just to accumulate the transformers.
Hi El. I accumulate the transformers. Where I'm at, they pay anywhere from .38/lb to .45/lb for these. It takes a lot of the small transformers to make a pound, but if you've already got the monitor, or whatever, opened up, you might as well grab the xfmrs. A really good source for xfmrs (if no one hasn't already brought this up) is microwaves. Especially the older really big ones. Some older microwaves have xfmrs in them that weigh anywhere from 10 to 20 lbs. Even a smaller 5 pound xfmr is worth around 2 bucks. I found old microwaves on the side of the road all the time. And it only takes a few minutes to take them apart. Not to mention the fan motor, the magnetron (they consider that a motor where I get paid) and the rotate motor all up also. Then there's the copper wire. |
24 Empty Missile Tubes, A Giant Mushroom Cloud....It's Miller Time!!! |
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n/a
deleted
110 Posts |
Posted - 04/05/2008 : 04:32:02
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quote:
Originally posted by dirtycopperas
Several states now have laws on the books regarding discarding monitors. In those states, the disposer is charged $5 per monitor to take it to the scrapyard. With copper in the high $2s per pound actual received, that is a losing proposition.
The 2 biggest problems with CRT tubes' scrapping is A) the danger of explosion of the tube, B) the amount of electrical charge that CAN remain in a "recently utilized but now in the scrap heap" CRT tube. Always remove the nipple to allow escape of pressure, and always safely discharge the electrical charge before further reduction of scrapped CRTs.
All states have laws against carrying Monitors in the passenger cavity of an automotive conveyance.
The biggest gripe against monitors is that there is considerable amount of LEAD in the composition of the glass CRT tube. I suggest dropping a concrete block on one after it has
been placed in a METAL 5gal bucket.
Just some practical hints from a been there, done that, got the T-Shirt scrapper.
Hi dirty. I'll second the "electrical charge" note. I found out the hard way. It was an old television that bit me. I'm not sure what it's called, but it was the red wire between the tube and the monitor. If you've taken apart monitors, you know exactly what I'm talking about. |
24 Empty Missile Tubes, A Giant Mushroom Cloud....It's Miller Time!!! |
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Flbandit
Penny Hoarding Member
USA
851 Posts |
Posted - 04/10/2008 : 12:47:15
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| Oh yeah, I got it one time from the gizmo the red wire is attached to on the board! However, by far the biggest nuisance I have with Monitors and such is getting cut. The backs of circuit boards will rip you a new one if your not careful! Also, if the tube breaks it can be like a razor. |
Are you throwing that out? |
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Topic |
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Computer Monitors
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