Re: IIgs RGB to VGA experiment

["js@cimmeri.com" <js@cimmeri.com>]

> Yes, I understand.  The lines are produced by video pulses that are multiples of 70 ns.  HGR pulses, for example, are 140ns wide, which will look pretty chunky on a hi-res display.  I was just saying that it's *not* the monitor, it's the Apple video.

I see what you're saying.   So you advocate a small monitor only to
reduce the pixelation effect we can perceive.


> Then you are golden.  All Apple display modes except SHR are composed
> of pulses of a 14MHz clock, and so are multiples of 70ns.  If you
> translate 70ns to displayable monitor pixels in 39+ microseconds,
> it works out to 750 pixel resolution across the whole horizontal
> line.  In the 640x? case, it works out to 858 pixels across the
> whole line.

It occurred to me that the real problem in figuring out all this video
stuff is that these d**n manufacturers don't put any but the most
primitive specs in their manuals.    Some are better than others, but
the worst are shameful (Samsung televisions).   If all the needed specs
were there, all these questions would have self-evident answers and it
would be easy to match a monitor to a need.

Also insane are the number of video standards in use.. format or
physical connection.   I think the maxim applies: the more confusion
you have, the more jobs it creates.

~ J

~ J