#31
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Very Nice set. I had one in a combo years ago. It had a solid state audio output stage to drive the big speaker system.
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Tom Smrz |
#32
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Thanks everyone. I got the TV all snuggled into its new home along with my 1941 Philco 41-255, 1937 Zenith 5S127, and 1940 Zenith 8S563.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 12-30-2016 at 10:18 PM. |
#33
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I just can't say it enough. This TV's picture is amazing. Super crisp and sharp with very strong colors.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 01-30-2017 at 05:04 PM. |
#34
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Quote:
Even at that, forty-plus years with the original CRT and making a picture as good as yours is phenomenal. Most color CRTs have either become so dim after this length of time (if they produce any kind of raster or picture at all) as to require a brightener, or else the filaments in one or more electron guns have burned out. Again, I think your CTC25 is on its second CRT. If it isn't, I'll be very surprised.
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Jeff, WB8NHV Collecting, restoring and enjoying vintage Zenith radios since 2002 Zenith. Gone, but not forgotten. Last edited by Jeffhs; 02-22-2016 at 04:49 AM. |
#35
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I'll have to call Danny and confirm this, but I'm pretty sure the original tube was rebuilt in 1973 or thereabouts, and the rebuilt tube was graveyard dead when Danny gave it to me. It now has a Zenith tube from Danny's inventory with super strong emissions. The TV was made in 1966 for the 1967 model year. So it is 50 years old.
I forgot to mention, the CRT has no safety glass. Instead it was fitted with a steel band to protect against implosion.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 12-30-2016 at 10:18 PM. |
Audiokarma |
#37
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I like the plate on your car. The sofa.
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#38
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I had a new problem arise with the CTC-25 today. I turned it on, and seconds later I heard some strange clunks. After that, I was greeted with a raster that was completely distorted, shrinking and growing rapidly, and buzzy, pulsating audio. I got a picture, but soon thereafter, it started rolling and then it went back to normal.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 12-30-2016 at 10:18 PM. |
#39
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Intermittent connection maybe? Glad it fixed itself though. Absolutely beautiful TV with an excellent picture!
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Admiral C322C2 Regent (Restoring) RCA CTC-7 Pensbury (Restored) RCA CTC-5 Westcott (Restored) CRA CTC--4 Director 21 (Restoring) |
#40
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Thanks, SwizzyMan. I love that Westcott of yours! Talk about beautiful. You did a fantastic job restoring it.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan |
Audiokarma |
#41
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Possibly the auto-degauss thermistor trying to take a (*bleep*). Those going open was a very common problem. Usually doesn't fix itself though.
If it does it again, don't let it run like that for any length of time. If it is the thermistor going open, it will quickly burn up its paired varistor (the big black disc thingy that sits next to it). Last edited by old_coot88; 02-23-2016 at 08:15 PM. |
#42
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old_coot88, thanks for the information.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan |
#43
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Could also be a main lytic failure. If any of the cans are getting warmer than the surrounding chassis metal after ~15-45 minutes run time the offending can(s) should get changed.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#44
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I forgot to mention that this chassis is almost 100% original, and I'd like to keep it that way as long as possible. When I was looking it over, I only saw one new capacitor and a few new solid state diodes on the convergence board. All the rest is 1966.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan |
#45
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Here is the flyback in the RCA CTC-25. I measured the temperature after an hour with my infrared-thermometer, and the highest number I saw was 133 degrees F. This is the original flyback for this TV, and it is on its third CRT. Your collective thoughts? I want to avoid melting wax, arcing, and smoking. This TV is my daily watcher for no more than two hours a day. 5-6 days a week.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 12-30-2016 at 10:18 PM. |
Audiokarma |
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