CRT TVs

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  • Pentium4
    replied
    Re: CRT TVs

    Originally posted by shovenose
    My honest opinion (ask and you shall receive) is that CRTs are a waste of time. I do agree that low quality/early LCDs can not compete with high quality CRTs. But any decent LCD is a better option than a CRT. It's less harmful for your eyes, uses less space, uses less power, is safer to work on, is easier to lift and move, and usually has better inputs (VGA is crap at higher resolutions).
    Haha, you make good points. To each their own though, the same things could be said about your old chevy truck (regardless of how cool that thing is!)
    Originally posted by goontron
    The awful whine! MAKE IT STOP!!!!!!
    It aint so bad, and it'll get better once your loud dubstep damages your ears some more
    just playin
    Originally posted by c_hegge
    I won't touch a Can't Read This display with a 10 foot pole nowadays. I can't stand how bulky and heavy they are, and electricity here is extremely expensive.
    Eh, I never had such issues with reading on CRT computer displays. But I've always been more drawn to CRT TVs rather than computer CRTs. Moving them is a good workout though!
    Originally posted by stj
    how can any engineer not like something that has an anode cap with a BIG red wire on it!
    This

    Leave a comment:


  • stj
    replied
    Re: CRT TVs

    how can any engineer not like something that has an anode cap with a BIG red wire on it!

    Leave a comment:


  • c_hegge
    replied
    Re: CRT TVs

    I won't touch a Can't Read This display with a 10 foot pole nowadays. I can't stand how bulky and heavy they are, and electricity here is extremely expensive.

    Leave a comment:


  • goontron
    replied
    Re: CRT TVs

    The awful whine! MAKE IT STOP!!!!!!

    Leave a comment:


  • shovenose
    replied
    Re: CRT TVs

    My honest opinion (ask and you shall receive) is that CRTs are a waste of time. I do agree that low quality/early LCDs can not compete with high quality CRTs. But any decent LCD is a better option than a CRT. It's less harmful for your eyes, uses less space, uses less power, is safer to work on, is easier to lift and move, and usually has better inputs (VGA is crap at higher resolutions).

    Oh, and many CRTs make a terrible whining noise that drives me crazy.

    It has been many, many years since I have used a CRT for more than a few seconds to test that it works.

    In my situation I'd throw them in the truck and e-waste recycle them at work. Actually, no, scrap that, I would never accept them in the first place. But if I was helping somebody move, fine, throw them in the truck, park it by the road, put the tailgate down, display the TVs with a big "FREE WORKS", and wake up the next morning hoping the TVs are gone but the tailgate isn't
    Last edited by shovenose; 08-12-2015, 10:57 PM.

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  • Pentium4
    started a topic CRT TVs

    CRT TVs

    For whatever reason I've always had a fascination with CRTs. I think they're much more interesting than LCD units. Maybe because I can't believe how long they've been around, and I just think the way it displays a picture is ingenious. Electron guns being aimed by a coil and painted onto a phosphor mask using only 3 colors?! COOL!

    I've always loved the clear colors, and the non existent response time of the display. Electricity is cheap here, so I don't really care about the extra cost. I'd like other members here to throw in their opinion on CRT displays, and if anyone else here is still using them. How come they are so reliable? They run hotter than LCDs yet tend to last so much longer. Is this because so much research has gone into them over the century that they have been around? Or is it the fact that planned obsolescence coincides with the "boom" of LCD production?

    I'm down in California helping my grandparents move, and they offered me two of their old CRT TVs. I think they are both really awesome but can only take one due to space. One is a 25" Zenith made in October, 2000. The other is a really neat 21" unit from Emerson Radio manufactured in January, 1987. Both work perfectly! Despite the Zenith having a 4" bigger display, it is only 1/2" deeper than the Emerson and is only rated to use 5W more. I plan to use either one of them up at my place.

    I really like the customizable knobs on the Emerson, but it only has Antenna in, and it's very old. Still pretty awesome to see the thing still working though!

    The Zenith was probably made by LG, since Zenith closed the last of their USA factories in 1998. The only capacitors I could actually see in there were Chemi-Con SMG with 2000 date codes. When I shine a flashlight through the side, I can see "MADE IN USA" on the tube itself, with UL31254, which doesn't turn up anything. I've heard about Zenith tubes going bad (ones made after 1993) is this something I should be very worried about? I'll be honest, I'm terrified of working on a CRT display!

    There are some pictures attached, the last one is a zoomed up picture of the lines where you can see the red, green, and blue firing. Very neat!
    Attached Files

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  • cmonkey
    Zenith Z50PJ240 - White Screen with 'Power Only' displayed
    by cmonkey
    Turned on my lovely plasma and after about 30 seconds the screen below showed up. None of the inputs are responsive, just the red light flashes when I push it. Remote doesn't work either. To turn it off I need to unplug it and when I plug it in again it turns back on to this screen.

    I only found one reference to this issue with a different model but it didn't look super reliable. Only mentioned a 'main board fault'. The main board for this one is on ebay for $34 so might need to go with that.

    Anyone seen this before?

    Thinking about it some more, it happened...
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  • handsworth
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    by handsworth
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    02-11-2025, 09:07 AM
  • rumi409
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    11-15-2024, 01:09 AM
  • Mustafa85
    Emerson PSU schematic
    by Mustafa85
    Hi guys,

    Any one has Emerson industrial PSU schematic, it has 3 electronics cards in one package please have a look at pics
    03-16-2024, 06:46 AM
  • ivtec
    Home made audio amp help
    by ivtec
    Hi folks i need some help from the electronics pros on a small audio amp for my old lcd tv that sound is too low on the speakers despite to be on the max volume, i know the issue is on the main board , the only solution is to buy a new board but i don't want to shell out 50 bucks for a board . I have seen in Utube some home made audio amps but i'm weary about those projects, i 've seen a audio buit with an STK audio amp ,. I don't have STK4142, i have STK4273, my question if this is not fake and works can i do it with STK4273 instead of STK4142? thanks https://www.youtube.com/watch?v=BcTZS5Y...
    02-04-2024, 10:42 AM
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