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#1
01-13-2020, 06:27 PM
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Nice job!
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Those are by far the best pictures I've seen from that series. I missed out on a couple ct100's back in the day
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#2
01-17-2020, 08:46 PM
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 Not happy you lost out on the CT-100’s to be clear.
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Last edited by etype2; 01-17-2020 at 08:50 PM. Reason: As above
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#4
12-27-2019, 11:06 AM
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etype2, "I have never seen the color photo. CBS must have installed the CT-100 reluctantly."
Marshall, I wondered about this myself. CBS had already purchased RCA color broadcasting equipment. Perhaps this was the most convenient way to supply color receivers for their early color monitor needs . CBS did, shortly, purchase RCA TM-10 15" color monitors when they became available. CBS color control room. Click to enlarge:
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Please visit my CT-100, CTC-5, vintage color tv site: http://www.wtv-zone.com/Stevetek/
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#5
12-27-2019, 06:19 PM
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Happy Holidays Marshall, thanks for continuing showing photos. That Westy has amazing color gamut for 66 year old technology. I hope 2020 is a year I can either get my Zenith 1968 console to run or more work done on the RCA CTC9 running. I envy you as your retired and have more time. I’m just enjoying my oldest running set from ‘75 a Sony KV-1920. It was my first ever Trinitron. Lol I now have many Trinitron’s Still looking for more.
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Sony Trinitron is my favorite brand. My wish list: Sony KV-7010U Sony KV-1220U
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#6
01-07-2020, 01:56 PM
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You'd think that CBS would have RX90s or at the very least be using the 15HP22 tubes in the units they had in their studios.
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#7
01-01-2020, 10:34 PM
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UPDATE, JANUARY 1, 2020.
Since the beginning of this restoration, we have been wanting to create this video. Most of you know the story. For the record, the NTSC color format in the United States was formalized December 17, 1953 by the FCC, (Federal Communication Commission.) NBC broadcast the first nationwide color telecast on January 1, 1954, but no one was able to see the Tournament Of Roses Parade in Pasadena, California, in that year because no color sets were available to purchase except one set*. RCA and NBC however, arraigned to have public showings of the parade by invitation. Most showings were private for broadcast personnel, television industry dignitaries, friends and families. These viewing locations were typically at television stations, hotels, convention centers and movie theaters. A few television appliance stores had prototype RCA, Admiral, Westinghouse and Raytheon color sets available for the public to see on the day of the telecast. Westinghouse as well as other manufacturers were in a race to bring to the public the first color television receivers for sale. *Admiral was the first with it’s C1617A on December 30, 1953. Twenty seven days after the first nationwide color telecast, (the parade) Westinghouse offered for sale on February 28, 1954, the H840CK15, initially only available in New York and New Jersey. Today, January 1, 2020, 66 years after the first color telecast of the Rose Parade, it gives me great pleasure to present this video of the parade on one of the first available color television receivers available in the United States, the Westinghouse H840CK15. It uses the RCA 15GP22, the first production color CRT. I’m very thankful for Mike Doyle’s restoration abilities, completed September 30, 2019. Without his work this restoration would not be possible. The video: https://videos.files.wordpress.com/h...mg_6514_hd.mp4
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Last edited by etype2; 01-01-2020 at 11:03 PM.
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#8
01-02-2020, 07:17 PM
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What a great effort to preserve this priceless bit of history and show us the parade. I was 9 years old and watching the same parade on grandma's CTC-7 in the day. We 11 cousins surrounding the set were amazed. It still looks like the same grand display of color RCA planned. Thank you Marshall and Mike.
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“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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#9
01-03-2020, 11:17 AM
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I clearly remember watching color TV in the fall of 1954 at my uncle's house about
1/2 mile from the transmitter of WBAP in Ft. Worth. I asked Santa for a CT-100 for Christmas, but did not get it until 60 years later in summer 2014. I'm still amazed at how perfect the color pictures are on it (using modern cameras of course). Thanks to Dave A I was able to watch actual real OTA TV (Ch. 39) on my CT-100 until about two months ago (if I could stand QVC channel programming, of course). That's gone now. It does, of course, still recieve Ch. 39 with a perfect picture when transmitted OTA from about 20 feet away.
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#10
01-03-2020, 01:17 PM
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John, Dave, thank you.
These sets do evoke fond memories. I had a similar experience with my Uncle, it was in 1956. We were invited to dinner, after dinner we all gathered around his new color set and a ‘Special’ was on and wow, just wow.
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#11
02-10-2020, 03:21 PM
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Five months after our Westinghouse H840CK15 with 15GP22 was restored, no hiccups. Fingers crossed. One day I know, this thing is going to fail. We are mitigating the chances of longevity by running a fan near the power supply and the power going to the set is regulated by a high end, Furman power conditioner. The HV is running at spec and the set is used conservatively.
Having said that, we did a few screenshots of the Grammy award show and last nights Oscar award show. The Oscars did not photograph as well as I would have liked. I could tell going into the photo session, the lighting and set design was not conducive to the best results. Anyway, a bunch of shots: https://visions4netjournal.com/wp-co...85B5E22DE.jpeg https://visions4netjournal.com/wp-co...0EE33B4CE.jpeg https://visions4netjournal.com/wp-co...08E4F38D4.jpeg https://visions4netjournal.com/wp-co...CC9FD5433.jpeg https://visions4netjournal.com/wp-co...D141049EC.jpeg https://visions4netjournal.com/wp-co...16F29BED9.jpeg https://visions4netjournal.com/wp-co...98FE15CEE.jpeg https://visions4netjournal.com/wp-co...9B693C8F2.jpeg https://visions4netjournal.com/wp-co...F6276A1AC.jpeg https://visions4netjournal.com/wp-co...050402462.jpeg
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#12
02-10-2020, 04:15 PM
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Is your camera set to automatic white balance? It seems the shadows are bluish in some shots and not others. If so, setting to a fixed white balance like "daylight" or "shade" might give more consistent results.
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#13
02-10-2020, 06:41 PM
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Yes, it is set to AWB. I will experiment with your suggestions.
I forgot to say that on the previous night, Saturday, my camera locked up and did some wierd stuff. I managed to unlock it, but that could be the reason for the inconsistent results. I’m going to reset it to factory settings and go from there, but the ABC telecast of of the Oscars were not the best for the reasons mentioned. We rewatched the telecast on the OLED and it was just okay.
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#15
02-11-2020, 08:40 PM
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and a couple of others had straightforward, no tricks, color chains. At least RCA and Westinghouse had adequate adjustments and feedback adders to reduce tube gain changes. And they had real DC restorers. RCA in fact really needs only one more control to have a full set, assuming close tolerance resistors in the matrices. Those two are capable of very, very close to modern quality RGB signals. The major problem is that one has to drive the red CRT gun so much harder than the other two that the don't perfectly match curve shape.
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