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1 total messages Started by Curtis J. Braun Wed, 05 Nov 1986 21:37
RE:mono Monitor on CGA
#8723
Author: Curtis J. Braun
Date: Wed, 05 Nov 1986 21:37
19 lines
1371 bytes
I would like to respond to a question concering using a  monochrone monitor
on a CGA.
1) on a TTL drive monitor is will work with any. I tied the three RGB
	video drive signals together with a series resister for each
	signal to the video in. This worked well.
2) on a composite monitor it is hard unless the composite signals are
	created from the TTL signals eminating from the RGB port. I had 
	a schematic for one of these somewhere????. I think I've seen these
	advertised somewhere...
3) There are some cards on the market which will do this. But it's been
	a while since I've looked. Check out STB for the best solution.
	I am using a Graphics+2 card with two monitors ( one color, one mono)

Hope this helps, good luck.
PS, the series resistors are needed to allow the anlog drivers to work,
but I don't remember what values I used... sorry.

address -> rochester!cci632!ccird3!cjb ...
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