Re: Apple][VGA - finally available

[Immortal Nephi <Immortal_Nephi@satx.rr.com>]

> I have been working until now to get the Apple][VGA ready for sale.
> Just for those who don't know what it is:
> It is a card for the "old" Apples ][, ][+ and //e, that displays the picture on
> a VGA monitor yielding an extremely crisp picture.
> I've written all info on web page:http://ferdimh.homelinux.net/a2/a2vga
> I'm sorry for the low speed, but my main server has failed and I cannot bring
> it up till August.

Apple II VGA looks wonderful.

> And, again, thanks to the people who helped me getting the coloring right!
> Regards,
> Ferdinand Meyer-Hermann

I studied DHGR pixels from Apple IIgs' Mega II chip.  It is NTSC to
RGB translation and it is limited to 16 colors.  It does not emulate
true NTSC looking screen.  Are you able to construct schematic how
Mega II chip generates DHGR 4-bit pixels?  VGC chip receives 4-bit
pixels and it converts them to 12-bit pixels.  Please let me know if
you can do it so we can discuss my DHGR project for Apple IIgs VGA.

Are you sure that Apple II VGA card is designed to convert NTSC 1 bit
stream to RGB which it looks real NTSC looking screen with more than
256 colors per line.  It does emulate true NTSC correctly than the
design of Mega II chip.

Are you willing to release schematic how true NTSC looking emulation
work?