CGA adaptors with TTL output?

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6 total messages Started by EDWindes Wed, 29 Oct 1986 19:36

#8610

Author: EDWindes
Date: Wed, 29 Oct 1986 19:36

12 lines
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A friend recently bought a Leading Edge Model D computer, and I became
  her (unpaid) computer consultant.  She is very happy with it, but
  would like to run programs written for the CGA.  Unfortunately, her
  student budget was taxed nearly to its limits, and can't accomidate
  a color monitor.
PHEWW!  OK HERE'S THE QUESTION:

Is there such a thing as a CGA board that spits out TTL signals compatible
  with a monochrome monitor?  If so which ones?  Please mail responses.

thanks.					ed windes (...ihnp4!ihopa!edw)

Re: CGA adaptors with TTL output?

#8614

Author: tj
Date: Thu, 30 Oct 1986 15:01

6 lines
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There are a number of video boards that will emulate CGA on a mono screen.
We have used ATI Graphics Solution quite successfully here. It does a lot
more than emulate CGA. It will drive TTL mono, RGB, Composite, and also
emulate a Herc Graphics card. Good hunting... Oh... they also have out
an EGA solution that does all the above plus EGA...
tj

Re: CGA adaptors with TTL output?

#8657

Author: berger
Date: Thu, 30 Oct 1986 21:35

4 lines
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Actually, the IBM CGA works fine with a monochrome monitor.  You just
can't use the IBM monochrome monitor.  There are others that can be
made to work with just a special cable.

Re: CGA adaptors with TTL output?

#8673

Author: Michael Roper
Date: Fri, 31 Oct 1986 02:09

18 lines
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In article <1986Oct30.100153.19542@utcs.uucp>, tj@utcs.uucp (tj) writes:
> There are a number of video boards that will emulate CGA on a mono screen.

I only tried one and it performed miserably.  It was a Paradise card.
It was brutally slow and caused all manner of flicker/breakup problems.
I beat a hasty retreat.

-- 

--Michael Roper      ARPA:  roper@june.cs.washington.edu
                     UUCP:  {ihnp4|decvax|ucbvax}!uw-beaver!uw-june!roper
                    CSNET:  roper.uw-june@rand-relay

                               ==============   

                      "Calvin, do you believe in God?"

                     "Well...SOMEBODY is out to get me."

Monochrome monitor with CGA card

#8672

Author: John Plocher
Date: Sun, 02 Nov 1986 01:47

20 lines
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berger@clio.uiuc.arpa writes:
>Actually, the IBM CGA works fine with a monochrome monitor.  You just
>can't use the IBM monochrome monitor.  There are others that can be
>made to work with just a special cable.

[ I tried mailing - but I can't seem to get there from here...]

    Can you tell me more?   I have a CGA sitting on the shelf cuz I can't
    afford a color monitor yet.  In any case, I'd much rather use the CGA
    with a monochrome screen anyways.  What kinds of monitors will this
    work with?  What inputs must I look for? This is the first I've heard
    of this, so if you could point me to where I might find more info on
    this, I'd be grateful!

-- 
"Never trust an idea you get sitting down" - Nietzche
------------	{harvard,seismo}!uwvax!uwmacc!uwhsms!plocher        (work)
John Plocher    {harvard,seismo}!uwvax!puff!plocher                 (school)
------------	decvax!encore!vaxine!spark!121!0!John_Plocher       (FidoNet)

Re: Monochrome monitor with CGA card

#8702

Author: Jeff Denenberg
Date: Mon, 03 Nov 1986 15:11

26 lines
1914 bytes

> berger@clio.uiuc.arpa writes:
> >Actually, the IBM CGA works fine with a monochrome monitor.  You just
> >can't use the IBM monochrome monitor.  There are others that can be
> >made to work with just a special cable.
> 
> [ I tried mailing - but I can't seem to get there from here...]
> 
>     Can you tell me more?   I have a CGA sitting on the shelf cuz I can't
>     afford a color monitor yet.  In any case, I'd much rather use the CGA
>     with a monochrome screen anyways.  What kinds of monitors will this
>     work with?  What inputs must I look for? This is the first I've heard
>     of this, so if you could point me to where I might find more info on
>     this, I'd be grateful!
> 
> -- 
> "Never trust an idea you get sitting down" - Nietzche
> ------------	{harvard,seismo}!uwvax!uwmacc!uwhsms!plocher        (work)
> John Plocher    {harvard,seismo}!uwvax!puff!plocher                 (school)
> ------------	decvax!encore!vaxine!spark!121!0!John_Plocher       (FidoNet)

ITT has a monochrome monitor with two input cables; one for use with a MONO
adaptor(or hercules) and the other for use with a CGA. It is called a "DUAL
FREQUENCY" monitor and is reasonably priced. It automatically switches mode
when input is received on one of the cables.

                        Jeff Denenberg

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