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-   -   Restoring a RCA 21CT55 (http://www.videokarma.org/showthread.php?t=268390)

Dave A 11-24-2017 07:33 PM

1 Attachment(s)
Another movie for consideration. Shot on Anscocolor film stock, the prints were by Technicolor. "Kiss Me Kate". 1953. Astounding color divided between darker scenes and full light stage scenes.

oldtvman 11-24-2017 08:59 PM

What's the gray scale look like?

etype2 11-24-2017 10:51 PM

Quote:

Originally Posted by Dave A (Post 3192524)
Another movie for consideration. Shot on Anscocolor film stock, the prints were by Technicolor. "Kiss Me Kate". 1953. Astounding color divided between darker scenes and full light stage scenes.

I will check it out and probably buy a copy. Thanks.

etype2 11-24-2017 10:55 PM

Larry,

Those screenshots were in the beginning when we had weak green. We traced the weak green to a transformer in the chroma circuit. 1/16 turn CCW of the slug did the trick.

The gray scale is on the blue side. Today, been tweaking to get it right.

stromberg67 11-27-2017 05:02 PM

Quote:

Originally Posted by Dave A (Post 3192524)
Another movie for consideration. Shot on Anscocolor film stock, the prints were by Technicolor. "Kiss Me Kate". 1953. Astounding color divided between darker scenes and full light stage scenes.

I agree that "Kiss Me Kate" is visually stunning in its own way. the first time i saw it I probably viewed a poor print, and didn't think much of it, technically. Having recently viewed it on TCM, I am pleasantly surprised about how good it can look. I'll ask Santa for a Blue ray copy for Christmas LOL;.l BTW, I haven't been keeping up with the thread. Does your 21-CT-55 have a rare earth 21FB?

etype2 11-27-2017 06:32 PM

Quote:

Originally Posted by stromberg67 (Post 3192583)
I agree that "Kiss Me Kate" is visually stunning in its own way. the first time i saw it I probably viewed a poor print, and didn't think much of it, technically. Having recently viewed it on TCM, I am pleasantly surprised about how good it can look. I'll ask Santa for a Blue ray copy for Christmas LOL;.l BTW, I haven't been keeping up with the thread. Does your 21-CT-55 have a rare earth 21FB?

It has a 21AXP22, somewhat tired but still tests good on all three guns.

Here is a link to a video we made last night. The 21CT55 and the CTC-7 Worthington running side by side.

https://vimeo.com/244628587

Here is a link to an image carousel with test images after calibration of both sets with the Joe Kane Video Essentials DVD. It will be boreing to some. Hope the members here are not bored by my never ending quest to get the sets as best as they can be.

https://visions4netjournal.com/vinta...-carousel-4074

The images will open to full resolution by taping on the tab in lower right of the carousel.

miniman82 11-29-2017 09:39 AM

Quote:

Originally Posted by etype2 (Post 3192587)
It will be boreing to some. Hope the members here are not bored by my never ending quest to get the sets as best as they can be.

Is it at 25kv yet? If not, you’re not getting the best...

etype2 01-01-2018 08:33 PM

2018 Rose Parade Photos
 
This update shows both the RCA 21CT55 and CTC 7 playing the 2018 Rose Parade on NBC.

The first (color) Rose Parade was telecast by NBC on January 1, 1954, but very few people saw it because you could not purchase a color television, even though Admiral put their color set on sale December 30 and possibly as early as December 17, 1953.

The lucky few television distributors were invited to private color showings of the parade on prototype colors sets and the public were invited to see the parade on prototype sets with various demonstrations staged in dealerships across the nation.

The wealthy and well connected were the first to view the Rose Parade telecast on January 1, 1955 in their homes on a few RCA 21CT55’s that trickled into RCA showrooms in time for Christmas purchase in 1954.

The 64th anniversary of that first telecast is replicated on the same set folks first used to watch the parade telecast, an RCA 21CT55 and the early 15 inch color sets. The signal received via a roof top analog antenna as close as we can get to original reception.

The first four screenshots were taken with an iPhone X and the last three with our new Sony Alpha 6300 DSLR. I haven’t mastered the new camera as yet which my wife gifted me for Christmas. The shots are basically point and shoot as we had limited understanding of all the controls. We hopefully can improve as we go through the learning curve of the camera. Many settings .... aperature priority, shutter priority, white balance settings, ISO, etc.

This link will open an image carousel which has full resolution shots.

https://visions4netjournal.com/vinta...-carousel-4235

https://visions4netjournal.com/wp-co...E4C17F4F4.jpeg

We have two videos of the parade to post here soon.

mbates14 01-02-2018 10:02 AM

its weird, its like the set on the right has squishy vertical compared to the left.

etype2 01-02-2018 01:11 PM

Quote:

Originally Posted by mbates14 (Post 3194155)
its weird, its like the set on the right has squishy vertical compared to the left.

Yes, we saw that. The vertical (CTC7) is adjusted better then it was originally. Could be better. We have to upload two videos, 5 minutes each and will post soon.

etype2 01-09-2018 08:21 PM

Update to post two 6 minute videos of the 2018 Rose Bowl Parade. Screen grabs from the videos. See links below.

https://visions4netjournal.com/wp-co...260B42153.jpeg

https://vimeo.com/250363347

https://visions4netjournal.com/wp-co...E1218BCA8.jpeg

https://vimeo.com/250371760

old_tv_nut 01-09-2018 08:38 PM

Thanks. Very nice. What CRT is in the CTC-7?

etype2 01-09-2018 08:43 PM

A 21CYP22A. Tested very strong on all three guns.

etype2 04-06-2018 02:25 PM

It has been 3 months since last posting on this thread. Decided to revisit “The Red Shoes” movie with an update.

After completion of the film, still not satisfied with the color images, we went back into the chassis searching for the reason why the greens were weak. The problem was a transformer in the color circuit. 1/16 CCW turn of the slug fixed the poor green response. We then did a complete new setup which improved overall color response. Using Joe Kane’s Video Esentials DVD and blue filter, we adjusted the gray scale and color calibrated this set. The movie and screenshots therin, were taken with cell phone cameras. Below, a few screenshots after the adjustment and calibration taken with our new camera.

Camera: Sony A6300 DSLR

Aperture: 3.5

Focal length: 16mm

Shutter speed: 1/30 and 1/40

Auto white balance

Resolution: 6000X4000

Sample screenshot reduced in size for this thread.

https://visions4netjournal.com/wp-co...E6BD8DC56.jpeg

It looks blurry, but you can see 33 additional shots in full resolution, 6000X4000 at this link: https://visions4netjournal.com/2018/...-carousel-4656

Tap on any image to open a carousel and tap the resolution icon to see full resolution. The screenshots captured scenes from a 69 year old film, “The Red Shoes” on a 63 year old color television.

etype2 04-15-2018 04:29 PM

Here is the next series of screenshots from the Wizard Of Oz using the new camera. These were shot yesterday, April 14, 2018. We plan to also show Gentelmen Prefer Blondes and a request to show scenes from Kiss Me Kate coming soon.

This thread was created to show the progress of our restoration of the RCA 21CT55 and how good the old 21AXP22 can reproduce color images. I hope you have enjoyed the photos and I did not bore you.

As always click on this link https://visions4netjournal.com/2018/...-carousel-4803 to open an image carousel and once opened, click on the full resolution icon to open 4000X6000 resolution images. The below images are only samples.

https://visions4netjournal.com/wp-co...52ECA62D8.jpeg


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