Best color CRT?

[colorfixer]

Originally Posted by kx250rider

For roundies, the HR19VGUP22 (military-spec 21FJ).

Charles

Is this tube medium resolution or does it have the same dot pitch as the 21FJ?

[kx250rider]

Originally Posted by colorfixer

Is this tube medium resolution or does it have the same dot pitch as the 21FJ?

That's a good question, and I don't know... The "HR" at the beginning, if I"m correct, means High Res., but that's subjective of course. There's very little data on it. I got mine from Boeing, and it appears to have the same size dots as the 21FJ. But it sure has a great picture, and was the easiest roundie (out of thousands literally) that I've done a setup on in the last 35 years. It almost converged itself, LOL.

Charles

[colorfixer]

Originally Posted by kx250rider

But it sure has a great picture, and was the easiest roundie (out of thousands literally) that I've done a setup on in the last 35 years. It almost converged itself, LOL.

Charles

That the tube was simple to converge would make sense, since they probably cherry picked the best of the best tubes to meet whatever specs that the military set for these.

Most of the setup procedures and issues with color tubes is based on manufacturing tolerances. If it were only possible to re-jig these once they were under vacuum.