| Monochrome to RGB [message #94171] |
Sun, 07 July 2013 09:47  |
Linards Ticmanis
Messages: 253
Registered: April 2012
Karma: 0
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Senior Member |
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Hello again,
I'd like to feed my Apple IIe's output into a Commodore 1084 Monitor. To
have the option of seeing 80-char text and black-and-white DHR stuff at
maximum readability and without color fringes, I'd like to find a way to
connect the Apple's video out signal to a total of four monitor inputs,
the video input (for synchronization and color graphics) and also the
three analog R,G,B inputs for monochrome stuff. Then I could use the
monitors built-in CVBS/RGB selection switch to see either color graphics
or a high-quality monochrome picture.
Simply connecting the Apple's output to all four monitor inputs by wire
did not work well, the picture was extremely dark, probably because the
output is not designed to drive four inputs at once. (A matter of
impedance?)
What else could I do? Hook up some transistors? Any ideas?
Thanks in advance for any hints,
--
Linards Ticmanis
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| Re: Monochrome to RGB [message #94172 is a reply to message #94171] |
Sun, 07 July 2013 10:06  |
dabone
Messages: 17
Registered: September 2012
Karma: 0
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Junior Member |
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On Sunday, July 7, 2013 9:47:27 AM UTC-4, Linards Ticmanis wrote:
> Hello again,
>
>
>
> I'd like to feed my Apple IIe's output into a Commodore 1084 Monitor. To
>
> have the option of seeing 80-char text and black-and-white DHR stuff at
>
> maximum readability and without color fringes, I'd like to find a way to
>
> connect the Apple's video out signal to a total of four monitor inputs,
>
> the video input (for synchronization and color graphics) and also the
>
> three analog R,G,B inputs for monochrome stuff. Then I could use the
>
> monitors built-in CVBS/RGB selection switch to see either color graphics
>
> or a high-quality monochrome picture.
>
>
>
> Simply connecting the Apple's output to all four monitor inputs by wire
>
> did not work well, the picture was extremely dark, probably because the
>
> output is not designed to drive four inputs at once. (A matter of
>
> impedance?)
>
>
>
> What else could I do? Hook up some transistors? Any ideas?
>
>
>
> Thanks in advance for any hints,
>
>
>
> --
>
> Linards Ticmanis
My 1084 has a green button on it, so if yours does just hook up the composite input normally and then press the green button. It then just uses the green gun and makes it a monochrome monitor.
Also, in the past, I have used a 15k rgb monitor as a monochrome composite, I think I hooked up one gun, and also ran the video to the composite sync input.
This was on a NEC multisync (original)
Later,
dabone
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