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The 82163A produces NTSC-rate video (or maybe PAL-rate, if there was a PAL version). This means that it has about 15.75 KHz horizontal sync, while most VGA monitors can't sync to less than about 31 KHz. Some VGA monitors can be damaged by out-of-spec signals; others simply won't work properly.
If you're sure your VGA monitor can handle signals that slow, you may be able to wire an adapter. If the monitor can handle sync-on-green, you can just wire the composite output to the green input of the monitor, and you'll get green text. But if it doesn't do sync on green, then you'll need a sync separator circuit (e.g. LM1881 and a few passives, and a power supply).
Are you sure you can't just find an old video monitor (non-VGA)?
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Look around for a video card with a composite video-in connector (like the ATi All-In-One card). Then you can plug in your HP 82163 to the composite in connector on the All-in-One card and see the picture on your PC screen.
The advantage of such cards is that they can be configured to sync to both PAL and NTSC signals, so you do not need to worry about the type of HP 82163 you have.
Apart from that, if your monitor does not have a composite video input connector (my Dell LCD flatpanel has one), then you are out of luck.
**vp
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Thanks for the input, looks like I've got a problem. Is it any easier to connect to a modern TV? .....Bill Lafferty