Vintage round tube color TV RCA CTC-7 nearly finished
HTML-код
- Опубликовано: 10 июл 2013
- Metal chassis could use some more work, but its playing pretty well. I still plan to put the BK415 on it to sweep the IF and chroma bandpass. It has the wrong CRT as the orig CYP had an open red filament, but it looks pretty good. The anode is VERY close to the CRT mount ring, so it needs to be well sealed to the CRT glass to avoid arcing to the metal ring. I guess I could mod the ring by welding in a semicircle to give some clearance there, but not sure that is needed. Maybe just a sheet of insulated rubber to beef up that narrow gap.
Наука
Funny to see Wizard of Oz on an old roundie. I remember watching it every Easter I think it was shown on My grandmothers old RCA roundtube from the late 50's. They had money at the time and bought a color set early on, giving the old steel cabinet B/W set to My mom when she got married to My dad. All I remember of the B/W set was that at some frequencies the cabinet would resonate and sound horrible! Grandma had the roundie well into the early 80's though it died in the late 70's. I remember wondering why the glass was getting a huge bubble in it when I was young. Those round CRT's used rare earth phosphors which produced amazing color, something lost in later TV production.
Nice job- the CTC 7 and CTC 9 were great performers.
The color picture is stuning!
the roundie CRT seem to make the best colors, think a LOT of chemistry and engineering went in to them to make the color as near perfect as possible.
As Margaret Hamilton positions herself over the tiny elevator in the stage floor to enable her to ' disappear ' when the smoke blasts. I saw an interview where she explained how they did her disappearing and ' melting '.
Good subject to show in these old color sets for all of us that grew up watching in black and white.
In late 60s I had a friend and in his living room they had similar model still using it. The picture was pretty bright but the convergence was all screwed up and some things looked like a black and white picture with color ' ghosts '.
I was there when Neil and Buzz walked on the moon and man that was hard to figure what it was.
When this TV might have first played this movie 99.9 % of the rest of the country was watching in black and white.
I recall that color ghost images as well, much of the programming was still B&W so as a kid I did not understand the big deal of color, all it meant to me was B&W with the color fringes! was a while before I actually was visiting the folks with the set and bonanza was on to see a real color image.
@@davewm9589 I was tinkering with old TV sets at the time and every time I went to his house I wanted to mess with that thing and see if I could get it straightened out.
( I really wouldn't have known where to begin )
A wonderful picture! Congratulations on all your hard work. I know that restoration of such old technology can eat up a great deal of time and effort from my own work. Thanks for posting!
Fun TV's to work on, glad you liked it.
The yellows are fantastic on this set!
A lot of work but now it performs great.
Nice work!
Digan lo que digan los tv rca Víctor tenían una buena tecnología y calidad que a perdurado a mi me gustan mucho!
Priceless. I dream about these very old color sets, which is weird as we didn't get color til the 70s in New Zealand and only got black and white in 1960 one year before my birth. theres something about the round tubes and even the later ones with rounded corners, a lost era.
yep, good well built sets from that era.
very nice color and TV!!
+Matthew Blalock thanks! yes I think the 7's make a very nice picture.
This is and exceptional picture. I prefer CRT tvs to the modern flat panels, and the colour on this old chap is stunning. Well done.
thanks! yes it is a nice picture.
Picture looks deep and gorgeous
I remember these TV's.
Good picture!
Fantastico!!!
Thanks, yes it does indeed make nice yellows. that is something I always look for.
I am pretty happy with the way it turned out, just need to get a fan installed to keep the temps under control.
I want to look at IF alignment, the plan is to try out on a spare chassis just to get the hang of it. Shango66 did some excellent work with a BK415, which I have so looking forward to that.
The best Wizard of Oz scene to show on this TV would be the one where they are traveling to see the Wizard and the Wicked Witch monitors them on her crystal ball. The round, almost spherical screen on this set it the closest thing to a crystal ball that ever got watched in a typical American household.
The Wizard of Oz is the Greatest Classic Movie Since 1939. I Like it!
;looking pretty good for a old television
Do not worry about the flyback in the 7. RCAs didn't really have fly problems until the CTC15 and it got worse through the 16 and 17. You can leave the door off the flyback, but do NOT add a fan unless the TV is in a climate controlled area. The wax flybacks would "dry" themselves out from the heat they generated, but running a fan would keep moisture around the fly.
1949 Tele-tone TV restoration TL-208
I think the CRT is in great condition because the TV had a lot of problems sense it was new and set up most of it's life.
When w had our shop a customer dragged one of those with a chain behind his toyota.on it's side.😀 customer had us put a crt & flyback in one of those elephants for a bowling alley asked why ? he said no one would steal it . utilities co.liked them too.
lets hear more about your shop, not many (any) TV repair shops anymore.
Dave WM rotired 07 made a a test right for my ctc4 from ctc2
Could write a book about the shop .had a dream the town called me that someone left 100old TV's in front for my free estimate.pleas remove immediately.???lol😀test rig the 15in CT 1000 my error .
I worked at a shop as a kid back in the early 70's mostly sweeping floors and occasionally a AA5 radio. Had one guy in his 20's that knew color, I was impressed by him actually using a scope at times. the wife of the owner was the book keeper, was always mad at me since I did not keep up with the inventory of parts I would use in fixing a radio (14 yrs old, not very reliable). I have not worked on a TV for a while now since new hobby is old cars.
Did you move the color screen and background controls at all? I'm repairing my CTC7 and someone messed with them before I got the set. I'm not sure where the background and screen controls are supposed to be around. Plus the convergence is way off so I'm going to check the coils on that board.
there are two settings, screen drives and the other I cant recall, but IIRC the screen drive is set to give a untinted white screen, and other (maybe grid drive, its been a while...) are set to give an untinted low light screen. It can be hard to get good results unless you have a decently matched CRT, tracking is what its called, compares the relative gain and control over each gun.
IF you have a crt with good tracking you should be able to setup the screen/grid controls to the guns in a way that allows consistent colors/highlight and lowlight while adjusting the brightness control for low to high.
The Convergence can get real tricky, make sure you use a dot/grid generator to setup. Start with purity, then center dots, then work you way out, edges will always be a bit off, just shoot for equal variations a the edges.
This TV has a beautiful picture. What is the video source, vhs tape or dvd? With all those vacuum tubes in there, it's pulling a fair amount of power. What's the power consumption?
was a dvd thru a CCTV modulator IIRC, power consumption is about 350 watts
Can you fix my late 1959 RCA Color 1st remote controlled color television set? It works, for the most part but is all original and needs cleaning, recapping, etc.
+George Rellas that would depend on where the TV is, Not a good idea to transport them. Also the labor involved is extensive. I as a general rule do not repair for others simply due to the fact that it would cost more than most folks are willing to pay (certainly more that the sets would could be sold for). I tell most folks that if they want one of these old sets you really need to learn to do the work yourself OR if you are real lucky you may find a local person that is skilled in vintage electronics, that is getting rare these days. If all it needs is recapping, then its not to big a deal, but if there is a problem that requires diagnosis then you can get into a real time sponge.1959 prob had gone to the better caps, so if you are lucky only the electros need attention, even they maybe ok, but for max reliability they should be replaced. Most sets from CTC-12 on rarely have cap issues, mostly switches and contacts.
Why would you take a 300 ohm twin lead antenna wire, converted to 75 ohm balun, then back out to 300 ohm which is what these old TVs used?
because I am too lazy to mess with it. I have a lot of video sources and a lot of tv's, and tend to convert everything to 75 ohm to make hookups easier. Once the set is place into regular service (i dont typically watch them in the garage) then I would make more of a effort to match things up with less conversion.
Picture tube is excellent condition, after 50...60 years
i got a 1949 tv i will send you the link to my video
did you have to replace any capacitors..
most of the film caps were replaced, I think all the can caps were ok. I check them with a old school cap tester for value and leakage at rated voltages. If they test well I generally leave them be.
lets play some xbox on it
and hook it up to a DVD player, and watch as many movies that came out in 2014 on it!