Quote:
Originally Posted by luRaichu
I don't wanna bother with RGB mods. I watched an Adrian's Digital Basement video on YouTube about the 1701/1702 and I remember him saying that the RGB levels used are over 0.7Vpp. So you'd need to get some transistors and amplify your RGB to what the neckboard uses.
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The neck board mod kits are made to do that; they are essentially simple RGB input stages that give you a wide range of control over the tube grids, but rely on the existing electronics for sync and deflection. Like I said, I've never used one, but they should work in theory.
I don't know off the top of my head what the RGB voltages are for a 1701, but they are
always higher than NTSC levels at the neck board. Just glancing at a random schematic for one of my sets, the drives take 5.8V and the outputs take 7V. After they leave the outputs, the RGB signals get boosted up to some level of roughly ~200V.
Don't get me wrong, I'm not advocating for it. I would probably just keep it Luma Chroma as that is sufficient IMHO. The leap from composite video to s-video is far, far greater than the leap from s-video to RGB. As far as I'm concerned, most people can't tell the difference between the two when the TV is viewed from a normal viewing distance; you have to take close-up pics to see the difference.
I think the main reason to do RGB in most cases is that it's convenient if you have a whole ecosystem of stuff that's already wired up that way. And it is a little bit better, so (all other things being equal) there's no reason to not have it.