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many I have seen have 3 or 4 rubber tabs between the tube and the yoke if you use a screw driver and work them side ways till they come out the yoke should slipp right off., if you have all the little plastic and alu bands above the yoke off. Wear a safety full face shield or at least safety glasses., and keep ypur mouth shut when removing the yoke : )
Haha olddude. Yep yer right for most tv's and monitors. But the ones that are glued dont have none of them tabs. They're just glued straight to the dern tube.
thx good to know. wont waste my time on them, **** junk is getten cheeper and cheeper made, what is the world commin to. : )
Hey Hoss, do you pay attention to what years has the cheap junk in it? Not a big deal but I'd be curious to know. The TV's I got from you varied from '01 to '82 IIRC.
Didn't pay attn for alum. Hope I don't have a lot of it.
The cheap junk USUALLY is 80's-90's from what i've seen. It varies with all different brands. Havent really been able to nail down a specific brand that sucks more than the rest lol.
haha. Yeah would be interesting to know why manufacturers do the things they do.
Oh well. We'll keep on forgin' on.
One simple word,, PROFIT!Quote:
Yeah would be interesting to know why manufacturers do the things they do.
True. I meant more along the lines of how things are designed. Some are complex. Some are kinda simple. A few have 1 or 2 boards. One I tore down last week had 7 or 8 boards tied together with miles of wire harnesses.
I just did a tv just like this 2 nights ago....luckily it is in my back yard. Even thought it is aluminum yoke and not copper, still worth taking.
The big circuit board (glad they are not worth nothing, as it is in 20 pieces or less), but the transformer, aluminum heat sinks, CBM, wire, etc are all in their buckets.
the different brands of tvs would explain y i only got 1 that was glued and had hard resin or plasitc covering it. i dont think the year really matters. i dont like glued ones. any 1 no how much a yoke tipcally weighs? medium to big ones
It varies too much to put a number on it. A normal size CRT, the yoke might weigh 1 pound? Then you take the ferrite and plastic off, which is 3/4 a pound.
The bigger yokes might be around 3 pounds, but still, that means more ferrite, plastic, and glue.
i usually just leave the glue on i get most of it off but some just doesnt come off other times its hard plastic thats on the part with the ferrite. is a 19inch tv a normal size?
I had a couple like that so I took a screwdriver and pried it open using those slots on the yolk
i did that on the one that i couldnt get most of the copper off i just got the first part the copper wraped around the ferrite not the copper around the picture tube.Quote:
Originally Posted by submarinepainter
Don't work on the CRTscreen until you have devacumed it.
Do that with glasses & safety gear & grab the little circut board plugged onto the end of the CRT.
Wiggle it around a bit, if you are lucky you may break the little glass pigtail in the centre of the pins.
When that happens you will hear the air get sucked into the tube.
Once thats finished its safe to work on.
If it dosn't break the pigtail, remove the board & tap the pigtail sideways with a hammer or maybe using a flat screwdriver against the pigtail & tapping it with a hammer.
CRT TV tubes are **** dangerous when they have a vacum in them.
If you don't think so, you haven't had one explode on you yet.
Beings he's a newbee and not real familiar around tv's yet, I don't think it's a real good idea for him to be tapping around on the tube with a hammer, I wish people would quit telling people to bust the tv tubes.
Nothing explodes. It implodes. Completely different.Quote:
Originally Posted by eesakiwi
This subject seems to be the biggest misconception on the board.
This is taken from Wiki,
Implosion
A high vacuum exists within all cathode ray tubes, putting the envelope under relatively high stress. If the outer glass envelope is damaged, the glass will break and pieces will fly out at high speed. While modern cathode ray tubes used in televisions and computer displays have epoxy-bonded face-plates or other measures to prevent shattering of the envelope, CRTs removed from equipment must be handled carefully to avoid personal injury.
Toxicity
Color and monochrome CRTs may contain toxic substances, such as cadmium, in the phosphors.[47][48][49] The rear glass tube of modern CRTs may be made from leaded glass, which represent an environmental hazard if disposed of improperly.[50] By the time personal computers were produced, glass in the front panel (the viewable portion of the CRT) used barium rather than lead, though the rear of the CRT was still produced from leaded glass. Monochrome CRTs typically do not contain enough leaded glass to fail EPA tests.
In October 2001, the United States Environmental Protection Agency created rules stating that CRTs must be brought to special recycling facilities. In November 2002, the EPA began fining companies that disposed of CRTs through landfills or incineration. Regulatory agencies, local and statewide, monitor the disposal of CRTs and other computer equipment.
Told yah.Quote:
Originally Posted by injunjoe
Vacuum implosion = 8 foot radius explosion of finger sized glass shards & a huge mind blowing shockwave.
Devacuum those tubes before even starting to work on one.
Ask a TV repairman if you don't be-leave me, he will describe the heavy full frontal jacket they have to wear while shifting the tube.
I have NEVER had a CRT tube "explode" on me. Just gently tap the skinny glass tube that the yoke slides over and it will break off cleanly and you will hear a hiss or woosh as air is sucked back into the tube. No flying debris ever. To dispose of them I place the whole tube into an old bird feed sack that my father saves for me. Once the tube is in the bag I whack it with a hammer a couple of times and end up with a sack of broken glass. I can sometimes get 3-4 CRT's into one bag all broken up if they are small.
I then tape the bag closed and write "picture tube glass" on it and place it in the curbside recycling can.