[Username1]

If you compare the mechanical system to the all electronic system available, I believe on the timeline it would have been at best the giant monster with 3 picture tubes..... I think final development of the three gun tube ended the mechanical system, and the three picture tube system. But anyway, a mechanical disc is surley lighter, less expensive, less power hungry, and I bet more dependable than the three picture tube system..... I think the weight of a 3 picture tube system would almost require it get assembled in a person's house upon delivery..... Viewing angle I imagine was limited to those directly in front of it.... Unless those three tubes projected a picture onto a frosted glass screen.

We can imagine the different devices they may have had under development. I have always wondered about a tube with one gun, and vertical striped colors, IF only they could turn the gun on and off fast enough to accurately hit each color as required, to do away with the shadow mask, and the need for 3 guns.... Not entirely like the index-tron. I guess if a tube could respond that fast, we would have had HD a long time ago.....