CED VideoDisc and Player Discussion

[krbsforty]

http://www.smokypond.com/gallery/pictures/antique_electronics/rca_648pv/IMG_8731psd_jpg+_Small_.jpg.html



Here is an interesting picture I thought you would all like.

[Beetlescott]

I LOVE IT!!! FromFirst to Last!!!!




Thanks for sharing!!!
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1000 titles
SGT-250
SJT-400
Montgomery Ward
SGT-100

[blindfury420]

That is a pretty sweet piece of electronics! 1947?
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I dont own

McMicheal 5001h
Hitachi VIP202P
JCP 686-5705
RCA SKT265, SKT300
RCA SJT400X, SJT425

[Rixrex]

I actually saw one of those sets still working when visiting NY City as a kid in the 60s. It had one single very bright B&W round-faced picture tube and the image was made rectangular by oversizing of the mirrored reflection with the inside of the screen box painted black. It was the only set at the time with a square edged picture.

The picture was actually very clear and sharp, and the set used a fresnel lens right behind the screen to direct the light image to acheive a sharp focus.

Nearly the same principle as modern rear projection CRT sets, but only one tube was needed for B&W, instead of three.

You could actually make yourself a version of this set using a CRT computer monitor (will accept an HD signal and the image can be reversed) that you can brighten up. You make a light-sealed box with a mirror and an adjustable fresnel lens behind plastic opaque screen. If you can't reverse the image, you have to use 2 mirrors, much more difficult.

Alternately you can make it as a front projection set, with the monitor in a light sealed box and a fresnel lens you can slide forward and back. Here's a really simple diagram on doing this:

http://www.diyprojectiontv.8k.com/guide1.html

The plan says to use a 19" CRT TV, but I've heard that a PC monitor works better and gives you higher resolution options.

Also, the best screen I've ever seen for any front projector, home-made or store bought, is an old high school beaded movie screen that you can mount and pull down for use. They can be pretty large and are designed to reflect most of the light for the best overall viewing. They work as well or better, and cost a lot less, than the ones you buy new at the TV shops.

[Beetlescott]

Unfortunately the picture of the singers is wrong, now, if it were somethingn like:

[img]http://newbeetle.org/forums/image.php?u=129&dateline=1278971227&type=profile[/img]
_________________
1000 titles
SGT-250
SJT-400
Montgomery Ward
SGT-100

[Jesse Skeen]

A few years ago there were a lot of "Spam" ads selling kits to make a projection TV from a standard CRT (some of them even had claims like "Don't buy a new TV! The electronics companies are stealing from you!") - funny that none of them actually showed what the result looked like. Are the pictures on that site really from that method? If so they look better than I would've expected.

In the 70s and 80s there was a magnifier you could put in front of a small TV to make the picture bigger- I saw it advertised in the back of magazines a lot, and here's a TV commercial for one:

http://www.youtube.com/watch?v=Prpg8pUdMj8

Looks like it's smaller than the 55-inch LCD I'm typing this on right now!
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Videodisc and stereo sound- there's no better value around!

[Beetlescott]

That's so funny! What a magnifying glass!
_________________
1000 titles
SGT-250
SJT-400
Montgomery Ward
SGT-100

[Dude111]