Interesting Early TV Website

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Interesting Early TV Website

Post by Doug Burskey on Thu Apr 30, 2015 9:25 pm

www.earlytelevision.org
vintage TV's pre and post war, early color TV's, CRT's  broadcast equiptment, etc.

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Re: Interesting Early TV Website

Post by Bill Cahill on Fri May 01, 2015 10:29 am

I've known about them for many years. Wish I could go to their show which starts tomorrow. They once had a few pictures of a tv I owned, but, I don't know what happened to them. They are the people with the big project on starting a picture tube bebuilding plant for collectors.

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Re: Interesting Early TV Website

Post by Wildcat445 on Fri May 01, 2015 11:38 am

I have been following their project on rebuilding CRT's. It appears to me that this is a lot of work and expense for very little benefit. I certainly wish them well in their efforts.

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Re: Interesting Early TV Website

Post by Bill Cahill on Fri May 01, 2015 12:18 pm

They are doing this for collectors so they can keep their vintage TV's running. It won't be cheap, I'm sure.. I think they are getting closer to opening the business....
I hear they will be demonstrating rebuilding this weekend?
The equipment, and, parts were donated to them.......

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Re: Interesting Early TV Website

Post by Doug Burskey on Fri May 01, 2015 7:22 pm

I would like to go myself, and I live about 60 miles north of there. However work comes first.  I think they are getting the equipment from the last company in the US that rebuilt picture tubes.

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Re: Interesting Early TV Website

Post by Bill Cahill on Sat May 02, 2015 10:10 am

Actually, they also got parts, and, some equipment from the company that closed in France. Hawkeye had very few of the correct parts for the antique tubes left, and, the company in France that closed had antique new guns, even new old stock glass bulbs. I doubt there are any companies left in the world. I wish the people at the museum the best.......

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Re: Interesting Early TV Website

Post by Wildcat445 on Sat May 02, 2015 11:02 am

I can't imagine an ultra-custom operation like their CRT rebuilding effort, ever being economical. I see it benefiting only the well-heeled collector and the most rare and desirable CRT's.

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Re: Interesting Early TV Website

Post by Bill Cahill on Sat May 02, 2015 11:22 am

I personally think you might be right. It can't be cheap, and, those ovens run on a lot of natural gas.
John Folsom has been there, and, may be there again, now.
They did a lot of experimental work rebuilding a 15" color tube for John. It worked, but, John reports it went to air. Too bad.

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Re: Interesting Early TV Website

Post by Doug Burskey on Sat May 02, 2015 1:23 pm

OK I misread that. To me they would have to sacrifice a few tubes till they get there process perfected.

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Re: Interesting Early TV Website

Post by Bill Cahill on Sat May 02, 2015 1:30 pm

That's right. While Hawkeye did show them all the basics of rebuilding tubes, Metal picture tube rebuilding died many years ago, and, nobody knows how it's done. The biggest problem they are having is an old one. How to seal metal to glass.
It's been a problem since they were made new many years ago.
These people not only have to train volunteers, they have to learn the long gone secrets, and, learn more to make them more reliable.

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Re: Interesting Early TV Website

Post by Ragwire on Mon May 11, 2015 8:18 pm

At our antique radio club auction this year there was a mechanical "picture tube" up for sale. The kind with the spinning disk. I couldn't stay all day so I don't know what it sold for or if they even got to it. The auction was scheduled for 9 AM to 5 PM, anb by the time I left at 2 PM, they were about 1/3 through all the items.
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Re: Interesting Early TV Website

Post by 75X11 on Mon May 11, 2015 8:51 pm

It wasn't this one, was it?

http://antiqueradios.com/forums/viewtopic.php?f=3&t=275910
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Re: Interesting Early TV Website

Post by Ragwire on Tue May 12, 2015 12:05 am

That's the one. I didn't know that Keith had posted about it over on that forum.
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Re: Interesting Early TV Website

Post by 75X11 on Tue May 12, 2015 1:47 am

I believe that was a flying spot scanner that would project a beam of light for each line of resolution so the reflected light could be picked up with a photoelectric tube. It then would cause a lamp to flash at the distant end behind a synchronized narrower aperture disk that would reconstruct the image.
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Re: Interesting Early TV Website

Post by Ragwire on Tue May 12, 2015 8:48 am

I think that is right. It sold for $900.
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