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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Jun 21, 2013 9:47 pm Post subject: |
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| benareeno wrote: | I dialed it in last night with contrast at about 1/2 and brightness was a bit over half...I think. I'll have to double check.
I run crt's with lower contrast than most...I lower it until blooming is gone.
What if I did that diy kit with 110 volt AC? Could that possibly mimick the crt reactivate function of the sencore? The manual states that reactivate only uses 1ma of current, but I am unsure of the voltage...but it runs for 30 seconds. Whereas that video above, I'm sure the current is likely higher. Or would just the voltage be higher, but the current lower?
BTW, I enrolled in electronics out of high school...but dropped out!  |
If you have a watchable picture at 1/2 contrast the last thing I would be thinking is the CRT. Unless it was bleeding a color substancially
As far as your other questions, I have no idea. Rejuvenating/reactivating is a very delicate process in which having the proper equipment is almost a must. Anything else and your playing with luck.
Most of the CRT's that I have rejuvenated in past years, the picture was barely seeable at full contrast. After the proper process with a Sencore 7000 the picture returned to normal.
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HD-DAVE
Joined: 16 Feb 2007
Posts: 225
Location: Delta, BC
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| Posted: Wed Jul 03, 2013 12:44 am Post subject: |
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Hah ! i found the perfect solution to your problem, Benareeno: check out this baby....I will sell it to you for one biillllllliion dollars...
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153.07 KB |
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63 Time(s) |
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Tue Aug 27, 2013 6:37 pm Post subject: |
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what is that thing?
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Aug 27, 2013 6:47 pm Post subject: |
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It's a CRT 'kabooster' as we used to call them. It bumps up the filament voltage from 6 to about 7.5 volts to superheat the CRT to give it another year or so of life. haven't seen one of those things in 30 yearfs. 
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HD-DAVE
Joined: 16 Feb 2007
Posts: 225
Location: Delta, BC
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| Posted: Tue Aug 27, 2013 7:14 pm Post subject: |
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Curt is correct as usual! In between grade 11 and 12 I worked as a summer helper for Jack's TV in Tsawwassen....Curt might know of the Learmont family who ran this place - it was big on Sony & Panasonic. Anyways, I would grab faded sets traded in/tossed outside the store and use this on them. Sometimes it only worked for a few days then one or more of the filaments would blow out completely ! This is back in the days of "all wood" TV set enclosures lol. Its been so long I can't recall where I got it ! Might be a museum piece one day...maybe already is !
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Wed Aug 28, 2013 10:49 pm Post subject: |
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woops, wrong thread!
_________________
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Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying 
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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