computer moniters
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Rag and Bone
Well-known member
What about those Monolithic capacitors on monitor circuit boards?
Has anyone found Pd in CRT PCB's???
Has anyone found Pd in CRT PCB's???
Rag and Bone said:
Pd has always kinda been a mystery for me. I'm saving any boards that have mono's on them, but the berylium is a bit scary to work with....
Wodl be good to know if the monos from crt pcbs contain Pd though...
Mike B
not worth trouble processing but I do, the tubes from tv'S and monitors, can be dangerous, I always discharge them at high voltage lead with insulated screw driver them break of the *** (sharp glass point) to let air in relieving vacuum, if not they can implode to me the value in the parts for repairs are worth more than the little bit of scrap metal that I work so hard to clean, they are more trash than treasure. sell em if you can, also they are a liability to our water supplys.
I dropped a tube the other day and figured I'd finish destroying it... yah, just because 
But I did find some steel shielding(I think), a small bit of copper, and a bit hanging from the rear "vacuume tube" looking end of the tube.
Is there anything of value in there? What's that little bit hanging off the vacuume tube made of?
I'll probably never smash another tube, But I'm curious about the bits of metal inside the tube.
This one hit my toe before smashing on the garage floor, so I was angry at it.... LOL
thanks !
Mike B
But I did find some steel shielding(I think), a small bit of copper, and a bit hanging from the rear "vacuume tube" looking end of the tube.
Is there anything of value in there? What's that little bit hanging off the vacuume tube made of?
I'll probably never smash another tube, But I'm curious about the bits of metal inside the tube.
This one hit my toe before smashing on the garage floor, so I was angry at it.... LOL
thanks !
Mike B
Chumbawamba
Well-known member
In my experience you sort of have to go out of your way to break a TV tube. Unless they fall flat on their face then 9 times out of 10 they will survive a fall from several feet. This is based on hard won experience of stacking many pallets of monitors and TVs over the years. I've even had some fall flat on their face and survive. They are designed to withstand huge forces because you as a TV maker wouldn't want one of those suckers breaking in some family's living room. The liability claim would be huge.
If you're in California then its worth dismantling TVs as the state subsidizes you for $.39/lbs (used to be $.48). You are mandated to pay out a minimum $.20/lbs to your supplier (if they are a registered collector) but if you get them directly from the post-consumer then that's all profit on top of the metals and plastics you get out of the dismantling. The plastic has actually started to have decent value. I'm currently getting $.03/lbs but back before the boom died I was getting upwards of $.10/lbs for it.
The downside is that, unless you have your own smelting process for the CRTs, you have to pay to get rid of them (I'm not sure how much...probably a few cents a pound).
If you're in California then its worth dismantling TVs as the state subsidizes you for $.39/lbs (used to be $.48). You are mandated to pay out a minimum $.20/lbs to your supplier (if they are a registered collector) but if you get them directly from the post-consumer then that's all profit on top of the metals and plastics you get out of the dismantling. The plastic has actually started to have decent value. I'm currently getting $.03/lbs but back before the boom died I was getting upwards of $.10/lbs for it.
The downside is that, unless you have your own smelting process for the CRTs, you have to pay to get rid of them (I'm not sure how much...probably a few cents a pound).
GeeDub
Well-known member
JustinNH said:
The city is giving you a bunch of bull. The Feds have reclassified the glass as a commodity and circuit boards as scrap metal.
Pilgrim2850
Well-known member
GeeDub, Where did you get that information from? thanks, larry
GeeDub
Well-known member
I can't find it in my notes. I have so much information I can no longer think of simple classes to categorize the subjects.
On the one year anniversary of the law I saw an article about the changes, so I looked it up on the EPA site.
Just did a quick search right now to give you this summary link, but the pages I read were later versions after all modifications; what is actually now coded into law:
http://yosemite.epa.gov/opa/admpress.nsf/68b5f2d54f3eefd28525701500517fbf/373c5b81f7dd8111852571b00062cd2d!OpenDocument
But generally just going to the EPA site and searching for CRT monitors will put you on the right track.
-Gee
(edit) The above might confuse some of you who say your boards are not from monitors. In my mind I didn't separate the laws. The salient facts were the same. Here's another link that summarizes it for you:
http://www.epa.gov/osw/conserve/materials/ecycling/rules.htm
On the one year anniversary of the law I saw an article about the changes, so I looked it up on the EPA site.
Just did a quick search right now to give you this summary link, but the pages I read were later versions after all modifications; what is actually now coded into law:
http://yosemite.epa.gov/opa/admpress.nsf/68b5f2d54f3eefd28525701500517fbf/373c5b81f7dd8111852571b00062cd2d!OpenDocument
But generally just going to the EPA site and searching for CRT monitors will put you on the right track.
-Gee
(edit) The above might confuse some of you who say your boards are not from monitors. In my mind I didn't separate the laws. The salient facts were the same. Here's another link that summarizes it for you:
http://www.epa.gov/osw/conserve/materials/ecycling/rules.htm
Skippy, what about just crushing it up and using it for the silica part of a flux mix in a furnace melt?
Well, that is if you wanted lead in the mix right....
Randy
Well, that is if you wanted lead in the mix right....
Randy
Yes Platdigger that's how a lot of it is recycled. Some used to be made into CRTs again but I bet that use is way down. My thermite reaction idea was a little whimsical idea I had when lead was worth more. When I found out others had actually studied the same idea and had poor luck I promptly forgot about monitor glass.
