Rca left everyone else at the alter

[old_tv_nut]

Originally Posted by heathkit tv

Very early color film used a two color system...sometimes pretty effectively. Were there ever experiments with a similar arrangement for television?

Anthony

I believe Baird experimented with a 2-color electronic system in the 40's - have to go look it up. And there is a mention of a color system invented in Mexico, in their 1964 New York World's Fair brochure, which may have been 2-color.

Sometimes some of the very early two-color cartoons will show up on TV, but I have never seen one of the two-color live-action films televised.

[tubesrule]

[QUOTE=old_tv_nut]I believe Baird experimented with a 2-color electronic system in the 40's - have to go look it up. And there is a mention of a color system invented in Mexico, in their 1964 New York World's Fair brochure, which may have been 2-color.

Not sure of the model or make, but I remeber an early 2 color projection television at a store I worked at in the late 70's. It was an all-in-one, front projection unit in an upright cabinet, and the two crts pointed forward onto a small, flip down mirror that projected the image back onto the front of the screen at the top. Not sure how well I'm describing it, but I think it might have been a Sony. Maybe someone else remebers it.

Darryl

[old_tv_nut]

[QUOTE=tubesrule
Not sure of the model or make, but I remeber an early 2 color projection television at a store I worked at in the late 70's. It was an all-in-one, front projection unit in an upright cabinet, and the two crts pointed forward onto a small, flip down mirror that projected the image back onto the front of the screen at the top. Not sure how well I'm describing it, but I think it might have been a Sony. Maybe someone else remebers it.

Darryl[/QUOTE]

I think I remember a design that was actually 3-color, but two of the colors were combined optically through one lens???? Could it have been something like that?

[tubesrule]

Originally Posted by old_tv_nut

I think I remember a design that was actually 3-color, but two of the colors were combined optically through one lens???? Could it have been something like that?

It's possible as I did not have the opportunity to look inside. I do remember that the two colors where cyan and a magenta/orange which would make sense. I think I remember being able to see the targets inside the crt's, but it was so long ago. I hope someone else remebers this set.


And you are correct about the 60Hz power line on a 24Hz television. This could cause all sorts of misregistration between fields. There was also a discussion last year about how relatively quickly the color filters would have faded in use, and since there was no tint or gain control, nothing could be done at the user end, so changing your filters may have become a common service call.
I also didn't realize that the CBS sets did not have a way of locking to the color signal, and you had a one in three chance of it coming up correctly. This means that just changing the channel between two CBS color stations (not that this ever happened) meant you had a 33% chance of the colors coming up right! The Gray Research monitor added a "red field" pulse to phase lock it's color wheel automatically, and it was pretty cool seeing this in action on Steve's set. I assume CBS would have adopted this method had they won out.

Darryl

[andy]

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