Re: 15Hz to VGA converter

[Michael J. Mahon <mjmahon@aol.com>]

Mark Frischknecht <appleiiguy@gmail.com> wrote:
> Thanks to a tip James Littlejohn gave me I purchased a 15Khz RGB CGA
> YUV Component Video YCbCr to VGA Converter Scaler from
> http://www.ambery.com/rgbcgatovgac.html
> 
> 	Wiring up the cabe was quite easy:
> 
> IIGS                          VGA 15 pin
> Pin 1 Gnd -------->  Pin 5 Gnd
> Pin 2 Red -------->  Pin 1 Red
> Pin 3 CSYNC --->  Pin 13 HSYNC / CSYNC
> Pin 5 Grn --------->  Pin 2 Grn
> Pin 9 Blu --------->  Pin 3 Blu
> 
> I posted pictures of the video output on my Picasa albums:
> http://picasaweb.google.com/AppleIIguy/CGAComponentToVGA#
> 
> It looks like 640x400 dithered doesn't come out to well...

It would be good to see the GSOS desktop.  That seems to be an "acid
test" of a converter's response to 16MHz dither--and a good indication
of what a user will see all the time. 

-michael  -  NadaNet 3.1:  http://home.comcast.net/~mjmahon