Re: The forced death of CRTs

"Tom S" <nospam@xxxxxxxxxxxxxx> writes:

>> On the other hand, CRT TVs lose brightness gradually too, and it's due
>> to degradation of the cathodes and phosphors. That can't be fixed
>> without replacing the CRT(s). It may be practical to do that for CRT
>> projectors, if the unit was expensive enough in the first place, but not
>> for direct-view CRTs.

>Oh please. The world is full of 15 and 20 year-old CRT TVs
>that still have perfect brightness.

No they don't, if they've been used a significant amount of time. You
may not be able to tell without measuring the light output with a meter,
since the loss is gradual, but CRTs do become dimmer with time - just
like LCD backlights.

A quick Google search finds this page, from a company that sells both
CRT and LCD displays: http://www.elotouch.com/products/crtlife.asp

Dave
.

Relevant Pages

  • CRT TV
    ... hitachi crt projection tv ... 36 inch crt tv ... find sony wega crt tvs ...
    (rec.travel.marketplace)
  • Re: Philips HD prepared CRT TV
    ... CRT TV that is a HD TV. ... is capable op displaying 1024i. ... This feature doubles the horizontal ... going away from CRT TVs. ...
    (uk.tech.digital-tv)
  • Re: television
    ... Compared to traditional CRTs all of the new technologies are ... generally still do expect our older CRT TVs to last at least 10 years ... really inexpensive FPs, below $500, are the Magnavox's and other ...
    (sci.electronics.repair)
  • Re: The forced death of CRTs
    ... It may be practical to do that for CRT ... The world is full of 15 and 20 year-old CRT TVs ... >>that still have perfect brightness. ... with today's CRTs, no ghosting, and bright, well-defined near whites and ...
    (rec.photo.digital)
  • Re: The forced death of CRTs
    ... It may be practical to do that for CRT ... The world is full of 15 and 20 year-old CRT TVs ... >> that still have perfect brightness. ... Try that with any LCD. ...
    (rec.photo.digital)