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Re: Pics of Apple Digital RGB Mon 100?
atfphotography@gmail.com wrote:
Hello,
So I have two of the Taxan/Video-7 analog RGB cards that work very
well with the Apple RGB monitor.
I also have the Apple IIe Digital RGB card that only works with the
Apple Color Monitor 100.
Does anyone have a photo of the M100 so I can keep an eye out?
I did read of the modification to the card to let it use analog RGB
monitors, but I would rather not modify it.
http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hardware/Apple_II_AppleColor_TTI_RGB/TheMarcorlandiModification_TTLRGB.pdf
Does anyone have a photo of the M100? I can't find anything on-line.
Best!
ATF
Hi
That document, I did try out such a circuit and I'm pretty sure he would not get those colors you
see in the monitor in the document. My guess is that those colors are made with either a GS or with
a much more advanced circuit than the one he describes. Possibly a mistake by the author. You would
get a palette just slightly better than the CGA has where one line is interpreted as blue, one as
red and one as green and then intensity the XRGB that comes out of that card is not the same as
RGBI. For example there are two combinations that give gray with the same intensity.
I would very much like to obtain an M100 monitor but I wasn't actively looking any more as I had
almost given up. I'm in Europe... Norway and the situation here is that almost all apples were used
with B&W TV or monochrome monitor. :-( Anyway I found my solution the Taxan monitor by Kaga
Electronics Co.
The Taxan/Kaga monitor has 3 modes Analogue RGB (mode II - Apple-II/NEC-PC-8001), digital RGBI, same
as CGA (mode I - IBM PC) and finally an Digital XRGB mode (mode III - Apple-III) which decodes with
similar colors to NTSC except for Gray 2 which looks like a cream (light yellow). I got this monitor
with a BBC computer last year and I have had it for all this time without realizing this... I have
now made a cable and, in mode III, it seems to work just like an M100. Perfect fit for the IIe RGB
card. WOW :-) I'll put up some photos on my site soon.
Maybe the Taxan/Kaga monitor is easier to come by than the M100 because it was used with more computers.
Knut :-)