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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 3:15 am Post subject: how to fix pattern wear on NEC tubes!! |
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I have been trying some things to try to "save" some tubes from my PG and had a brainstorm last night.
When I was a kid one of the local kids wrecked his colour TV by sticking a magnet against the screen- the area under the magnet developed a permanent discolouration. I have a couple tubes that have lots of life left,but were set up small and burnt (lightly...) enough that the discolouration made me replace them. last night it hits me! all I need to do is hold a magnet up to the tube face and move it around to "paint" over the non-burnt area and even it out.The only problem was the damn glycol chamber, so I cut it off!! only took about 2 HOURS!! then I realize that the tube is going to explode if I fire it up without coolant.....so
( I have pictures of this, I will resize and post)
I turn the projector on its side, get a deep glass casserole dish full of water and set the tube in the pan, totally freaked about getting fried by the high voltage, I check the chasis to water with my multimeter ( nada!)and after a couple deep breaths slip my hand into the water with a 1 inch round super magnet that usually lives on the fridge( and is strong enough to hold a copy of Time magazine to the fridge!) so there I am looking up through the bottom of the pan and I can SEE the burn from the magnet and as I move it around the edge of the pattern wear (raster lit up) it is sort of hard to get right to the edge evenly so I just sort of "scrubbed" over the hard edge area, so now the transition is less obvious. it was getting late by this point so I took a few last pics and crashed. but it looks like it will work!!
I just need to resize these before and afters and I will post them. 
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Joust
Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Wed Apr 02, 2008 3:26 am Post subject: |
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wanna buy a bridge?
had to get that one in just before midnight eh? 
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 3:44 am Post subject: |
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files are still too big... I am just going to reshoot the after close-up at lower res. the befores look pretty grainy but you will get the idea
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 3:57 am Post subject: |
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o.k. here you go:
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438 Bytes |
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5495 Time(s) |
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 3:58 am Post subject: |
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hold on......
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 3:59 am Post subject: |
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here we go:
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8.91 KB |
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5491 Time(s) |
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Fujifrontier
Joined: 20 Oct 2007
Posts: 354
Location: San Antonio, Texas
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| Posted: Wed Apr 02, 2008 4:26 am Post subject: |
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meh
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Wed Apr 02, 2008 8:16 am Post subject: |
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Dunno what to make of this post as the opening post says "Posted: Wed Apr 02, 2008 3:15 am" for me 
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Heywood Jablome
Joined: 12 Mar 2006
Posts: 1548
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| Posted: Wed Apr 02, 2008 11:25 am Post subject: |
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| kschmit2 wrote: | | Dunno what to make of this post as the opening post says "Posted: Wed Apr 02, 2008 3:15 am" for me |
Kamloops, BC is on the left coast. AVS' server(s) is/are on the right coast, aboot four hours in the future, eh...
--Edit... this is not AVS, this is curtpalme.com... Where ARE the servers?
_________________
"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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dculberson
Joined: 05 Jan 2007
Posts: 211
Location: Columbus, OH
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| Posted: Wed Apr 02, 2008 1:53 pm Post subject: |
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I think it shows your local time as of when it was posted. I could be wrong. But it asks for your time zone in your profile.
I'm GMT - 5 Hours. So for me it says "Posted: Tue Apr 01, 2008 10:15 pm." Since Jask is in BC, he'd be GMT - 7 hours = 8:15 pm..? I don't know if they do daylight savings. Whatever. My point is, it was April 1st for him when he posted it.
_________________
I'm a stuffaholic.
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 3:46 pm Post subject: |
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It was an April fools post.... and it was still before midnight locally 
I am not entirely sure but I thought the forum clock defaulted to GMT if you did not select local time
EDIT: on the lower right of the page...... "all posts are GMT plus....."
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Wed Apr 02, 2008 5:28 pm Post subject: |
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says "All times are GMT" here
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Wed Apr 02, 2008 6:20 pm Post subject: |
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oh yeah..... same here!!
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