CRT and yoke question

[kf4rca]

A look inside:
https://www.labguysworld.com/MotoTelePlayer_016.jpg

[old_tv_nut]

[old_tv_nut]

The more I think about it, that green coil labeled with question marks may have been a random vertical centering offset in still mode so that a sharp-edged rectangle didn't get burned into the phosphor. Wish I could remember for sure.

[kf4rca]

I have never seen one of these. Was it color? Seems to be similar to the Rank Cintel.
https://en.wikipedia.org/wiki/Cintel.
That's a high end film transfer machine usually found at production houses.
I think the hard part would be coming up with a focus coil. But I don't think the guy will sell me the 1077 for $5 anyway.

[old_tv_nut]

The flying spot tube was violet/UV. The film was two-track black and white microfilm, mastered with an electron beam recorder. Both tracks could be 25 minute black and white, or for color one track was luminance and the other was the color subcarrier and a pilot signal, recorded as sinusoidal density stripes, and decoded back to NTSC or PAL subcarrier in the player.

The luminance resolution was equal to or superior to broadcast; the chroma subcarrier bandwidth was +/- 600 kHz on a 1.8 MHz subcarrier. The pilot was 900 kHz. Frequency and phase variations of the chroma and pilot due to scanning width and non-linearity were cancelled out by comparing the chroma to the pilot.

[ppppenguin]

EVR was an interesting idea that ultimately led nowhere. I wonder where the market was? I've heard they were used on cargo ships and oil tankers to provide entertainment for the crew.

[old_tv_nut]

A major problem was that the training/educational/private advertising markets for it could not support the required economies of scale. William Paley at CBS kept waffling about whether it should be mass marketed for home entertainment or if that would dilute CBS's intellectual property too much. He came down on the wrong side of that, and prerecorded VCR tapes for home entertainment ate EVR's lunch.

That was combined with a film duplicating plant that never worked right; the inventor, Goldmark, complained that they had done everything wrong at every step of setting up the plant. Motorola at the end backed out of their contract, blaming CBS for failing to supply usable quality film cartridges; but it was also clear that with the restricted market it would always lose money.

Some promotion continued in Europe for a while, but again, it was too little, too late.

[kf4rca]

Connected it up to an old Conrac SNA chassis and here's what I got. It sorta works.