26 May
2010
26 May
'10
2:11 p.m.
----- Original Message -----
From: "Tony Duell" <ard at p850ug1.demon.co.uk>
To: <cctalk at classiccmp.org>
Sent: Tuesday, May 25, 2010 9:35 PM
Subject: Re: Pravetz 82
Really.
Checking my somewhat old list of _broadcast_ TV systems used around the
world, I can find PAL used with both 525 and 625 lines. NTSC was only
used with 525 lines nad SECAM with 625.
But those are the _broadcast_ standards. There is nothing to stop you
making a device with RS-170 (525 lines, 60 Hz vertical) using SECAM
colour encoding. Or a 625 line system using NTSC colour encoding. Or for
that matter any (odd) numbr of lines that you like.
Ok. thanks for the info. Just one more question; why only an odd number of
lines?
Yeah, and as the web expands theres only going to get more good and bad
information online :(
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
> > I'm pretty sure they're the same in
practice -- and in any case
neither
PAL nor SECAM mandate the resolution, only the colour
coding.
Really?
>
> The *cough* website I looked at listed specific resolutions for each
> (including NTSC). Perhaps the site had some misleading information?
(don't
ask for an
URL, it's been too long)
There is a lot of very good information on the web, but alas there's a
lot of misleasing and downright wrong infroation out there too.
-tony