On Mar 16, 10:58=A0am, cgott <curtgott...@[EMAIL PROTECTED]
> wrote:
> On Mar 15, 2:20=A0pm, G-squared <stratu...@[EMAIL PROTECTED]
> wrote:
>
> > =A0On Mar 15, 10:10=A0am, md <mardahl2...@[EMAIL PROTECTED]
> wrote:
> > =A0> Are the still making 27 to 32 inch color crt tv's? =A0I saw a
32"
> > =A0> samsung(?) somewhere but have not be able to find it anywhere.
> > =A0Thanks.
>
> > Precious few CRT sets a Best Buy 2 weeks ago. Nobody wants them
any
> > more, along with cassettes, typewriters, 8 tracks, open reel tape
> > decks .....
>
> > GG
>
> Oddly enough, they provide a better picture in HD than LCD or
plasma
> (less grainy) but the stores don't want you to notice.
When the first Trinitrons made it into the braoadcast world in 1976 in
the Tektronix 650 monitor, the complaint was the tube hides the noise
which is good at home but bad at the TV station. There you _need_ to
see the entire signal, warts and all. The coarse phosphor pitch of
CRTs hides that pesky grain and noise.
The pixel based monitors (LCD, Plasma, DLP) all suffer from on/off as
in there is no variable output until you do the Pulse Width
Modulation. The video was pre-distorted (gamma) for the CRT so you
have to manufacture the gamma into your PWM to get the variable light
output to reproduce the original scene. So, some of the grain is math
dither in the PWM and some from the finer pitch of the pixels. The
math problem will go away in newr models as processing improves.
GG
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