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Re: Video conversion question...

From:
Date: Thu, 6 Aug 1998 08:52:57 -0500 (CDT)

Never mind the signal levels--what I want to know is where you got a
female SO who is into any of this!
My wife looks at me with that "That's nice, dear" expression and starts
worrying about how much money I'm about to throw away this time whenever I
talk about almost anything compuer related... 8-)

Paul Archer

> My significant other has expressed to me her desire to also become a
> cyborg...  So- I have this old 286 laptop that should become useless when
> I get 'borged myself...  Really small guts and CGA(15.75KHz, 640x200) 
> output in the back.  Then I guess she could do everything w/NOS or ELKS.
> 
> I can build a little circuit to convert the RGB signals to NTSC, but CGA
> is at TTL level, and the sync signals are positive...
> 
> Question is: How would I convert the signal to the right levels?  I assume
> that a couple of inverting op-amps would do the trick for the sync, but
> what should the gain be?  (obviously, I may not quite know what I'm
> talking about :)  And are the R, G, and B signals also at TTL level, or
> are they ok the way they are?
> 
> Thanks,
>   -Lee.
> 
> 
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