Early colour TV experiments.

[Murphyv310]

Of course on it only gives enhanced vertical resolution on still pictures. As soon as you get movement on 405 you're down to 202.5 lines, less than Baird's 240 line progressive.

Sounds just like today's digital TV, resolution is lost on moving scenes perhaps far worse than 625 lines analogue ever was....... there goes progress for you.

[ppppenguin]

As you increase the number of lines and pixels then ever slower motion becomes a problem. This is inherent, not a question of data compression though this may add its own problems. Unless you increase the frame rate.

http://www.bbc.co.uk/rd/publications/whitepaper209

[Aerodyne]

Just for clarity, Super cinecolor is a three-colour system, developed from the original two- colour 'Cinecolor.system. The Abbott and Costello film 'Jack and the Beanstalk' was filmed in Super Cinecolor. This is apparent upon viewing the movie on You Tube.
Tony

[Raditechman]

Thanks Tony for the correction,  I remembered Cinecolor as a 2 colour system but did not realise the  "Super" version was 3 colour, it looks a poor process.

Searching around I found  a full description of Cinecolor and SuperCineColor with 2 and 3 colour examples on this link.
http://www.widescreenmuseum.com/oldcolor/cinecolor2.htm

Wonder if any 2 colour films are still about.

[Mike Watterson]

I've seen two colour ages ago (TV program on history of Cinema), it depended on material as to how well it looked. Fidelity though was rubbish.

[ppppenguin]

Going back to David Boynes' original idea of creating a 2 colour system there would be no great problems simulating it on a conventional 3 colour RGB system.

[Geordie McBoyne]

An article in the July 1959 Practical Television magazine is worthy of study.
Entitled "A closed Circuit TV System" the article describes the construction of a system which has the potential of displaying colour images.

http://www.americanradiohistory.com/Arch...959-07.pdf

Scroll down to page 604.

Geordie McBoyne.

[Mike Watterson]

110 degree tubes mentioned as a new development. They made a difference to cabinet depth, but must of the depth reduction on later models is the curved back covering maybe 1/3rd depth?   Article P 598.

Re: Flying spot scanner and projection display: We need the next month too, except August & September are missing.

The mentioned homemade  filter won't work very well, assuming you can even obtain the kind of plastic film needed.

DLP does use a mechanical "colour" wheel. I have one here that got wet and then then the owner powered up the projector without drying it. Wheel glass is in pieces. I think most have one or two clear segments?

Oh and a map of UTV coverage from Black Mountain! Just recently deceased by the ITV PLC gobble.
The "Spot wobble" add on is interesting!

611 a letter about HD Colour TV

[ppppenguin]

August and September1959 PTV were not published due to a strike. Next part from October issue. I don't have a scan of the November issue to hand.

[Terry]

August and September1959 PTV were not published due to a strike. Next part from October issue. I don't have a scan of the November issue to hand.

Jeffrey, the November issue is here:

http://www.americanradiohistory.com/Arch...959-11.pdf