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Re: IIgs RGB to VGA continued



PZ wrote:
There's a good number of RamWorks users out there with Colorlink cards.
(GS pin compatible Analog outputs)

Rom 01's have a VGC but it's socketed.  It would be tough (but not
impossible) to have a cost effective internal implementation that works
on both.  The problem's scope is that there are approximately 3x as
many ROM 01 machines out there as ROM 03's.

- Paul

jsnospam@cimmeri.com wrote:
PZ wrote:
This will limit you to ROM 3 GS's only.  Rather than ROM 01's, ROM 03's
and Apple IIe's w/ RGB cards.  Just an observation.
Paul, I don't have a Rom01 machine.  Do they not have a VGC?

And does the IIe w/ RGB output analog RGB, or digital?  Thought it was
digital.

~ J


Well my AL250 implementation consists of the AL250 circuit and a separate board that can either be a socket to place over the chip on a rom 3 or a socket and insert for the Rom1. (Pull the chip and place a tap in the socket and place the VGC in a socket on the tap. Of course I have also considered simply making a board with very small pins hanging strait down to shove into the socket without removing the chip.

Wanna see pictures? I developed a circuit for the Rom3. This one is at a right angle so I can more easily work with it, but it was designed to sit under the power supply and have a VGA plug dangle out the back. (MY PS sits alongside when I am 'playing'.

http://www.applelinc.org/IIgs2VGA/MVC-130F.JPG
http://www.applelinc.org/IIgs2VGA/VGAThingy.htm

Thankx,
Ed