/vr/ - Retro Games

In my research of arcade monitor specifications I've been looking for any information to allow them to be compared in terms of TVL ratings to consumer television and video monitors.
See what you think of my math.

540 / 0.8 = 675 dots (manual says 676 for unknown reason)

But this 675 is across the whole width of the display. To measure TVL you only measure across the width an amount equal to the height of the viewable display space.
That is quoted in the manual to be 405mm.

675 / 540 = 1.25 dots per mm

405 * 1.25 = 506 dots

That would suggest 506 TVL. However, I strongly suspect it would be lower due to the lines blurring together at that fine of a test pattern if displayed.

400 TVL maybe for this tube? 450?

Source:
https://wiki.arcadeotaku.com/images/3/34/MS-2931_Service-manual_full.pdf