Tube sets were so much of a science/art (witch art) .. unreal the minds and time put into this equipment for it to even work at all.. and be commercially successful …
Was going to make a remark when shango066 said something about 'troubleshooting', that's OK as long as you can get the schematics. Hard to do on anything new today, (no schematics available) and it's hard to find the old things like these neat old TV's that you CAN get schematics on. REALLY hard to diagnose without a schematic.
@@randyr.parker2698 Almost all of these sets were fully documented in their Sam's Photofact folder, most of which you can either find scanned online for free or on their website for a small amount of money. The same goes for almost every radio, they were being documented from the early 1930s up until the mid 1980s. Unlike this old equipment, more modern televisions are not designed to be serviced in any way by anyone except the manufacturer - Who will likely recycle the old component and just replace it outright rather than actually fixing anything.
I just started watching this video this morning and fairly quick into it I"m yelling I know what's wrong. 50 years ago I was working for a TV shop in Longview, TX and had a CTC-15 on the bench displaying the same symptoms. The Boss/Owner of the shop let me get out more and more gear trying to find it until I guess I was just eating up too much time. He came over and shined his little penlight on that wire on top of the board and said change that wire. I did, he was right. When I pulled on it it just fell apart. Bravo for finding it without the Boss showing it too you...
It Is A Great Idea To Have All Of Your "BASES" Covered When Involving These "TYPES Of Television Sets". SO: Everything Will Operate And Function Without Any Sort Of Issue Or Problem Concerning Such An Old Television.
Thank you for the video : ) We have just watched part 2 & 3 great stuff, I am 74 and started in the TV trade in 1961. Colour came to the UK mid 60s I think. The condition of the chassis on that set was amazing for its age. God Bless Allen and Alanna Mullion Cove Cornwall UK
Yet another great case study in diagnostics 101. Nice work my friend. You've become quite the mentor for me. Not doing any CRT's as of yet, but your knowledge and techniques have been extremely helpful! Keep these vids coming!
Love the unscripted, minimally edited approach... It makes it more of a mystery, more 'conversational' in a way, and you learn more about the reality of repair. Thanks for all your efforts!
Witam i pozdrawiam!Skomplikowana naprawa tego odbiornika wymaga dużo cierpliwości i dokładność i oraz wiedzy!Przed naprawa korekcji zbieżności lub wymiany tego modułu powinno się zlikwidować linie powrotów odchylenia pionowego,a potem zacząć pracę z układem korekcji,było by dużo lżej!!Duża wiedza i dobry pokaz Video!!Tak trzymać!
@@onometre depends in what brand you buy, pioneer were the best, also plasma tvs colour reproduction is 10x better than lcd, buy cheap buy twice, my pioneer set is going strong after 11 years
Well I would say probably even an older CRT like this does have better contrast and color (when working right and not worn out of course) than an LCD. LCDs do have better sharpness though thanks to pixels.
Nothing short of astounding. I did not even KNOW they had color sets in mid sixties. I was 8 years old in 1965. We got a Sony color set in 1972 I think.
I've said it before but I'm going to say it again: you just have to shake this guys hand, The time and effort he puts into fixing these old sets is absolutly remarkable.
this is what i like about your videos shango. your straight-forward honest approach to fully diagnosing problems. and showing the good and the bad of the diagnosis and repairs. and your comedy isnt bad either.
Used to live with my grandfather on and off. There were two huge color Zenith early 60's consoles there. Almost identical, but maybe about a year apart. One upstairs, one downstairs. Huge things, but I remember them fondly... :)
@@Tedybear315 when I get similar spam calls I tell them to f* off and get a real job, then I hang up and turn my phone OFF. I guess I don't have the patience or the time to waste with the gibberish talk thing on those low IQ peanuts if/when they call.
I used to do this sort of thing in a past life, years ago. After watching this and following along, I guess I never really forgot that much. It brings back a lot of memories. Your troubleshooting skills show you've been doing this for a long time. Nice job.
Excellent! You did a great job with this set as per YOUR usual, by focusing on diagnosis rather than random parts replacement. I learn a lot every time I watch one of your videos. Believe it or not, this helped me repair an old florescent display calculator from the early 1970s for a friend recently.
Hi Shangoo, I won't get to see the video until tonight but I just wanted to tell you that my friend, who is now 83 and had a Repair shop in Ireland served his time with RCA in the States back in the 60's. He came to stay the night with us last week and we ended up watching your videos, they brought back alot of memories for him. He only closed his shop this time last year, I videoed the shop and hope to upload it soon. Thanks again and best regards from Ireland.
That's so cool! If you Love you 'job', it's not work; If you Know your job, your name is 'on' your work. Peace to You and your Friend! I dream a lot of my past jobs. Hate Bullies. [off topic] ~- *
We used to rent our TV off him, once a month we'd go in to pay. It wasn't long until I was going in after school. He thought me how to solder and I used to put new leads on clothes irons, etc. I would of been about 7 or 8, best days. Like a grandad to me.
Awesome video I worked in the TV and Video industry and repaired them for years. To make money, I used to go to the refuse tip and get equipment; to renovate and clean and re-sell. I started, just as valves were going out of fashion. I worked on many Manufacturers. Phillips were my favourite, and Grundig my least. Line output transistors and transformers were common. I also had to do tube replacements and total setup from scratch if magnets weren’t attached. Also we had many tubes re-gunned if we couldn’t find a replacement tube. I have a brand new tube tester, I cant seem to sell, because CRT Technology is no more.
The two videos about the repair of this television were so interesting to watch I could not even stop watching for a minute. Despite from that I think it was also really educational for people like me that have not so much experience in tracking down errors with electronics based on tube technology. Thank you so much.
The CRT is so old that you have to blow out the signals so much just to get the colors to show. It winds up making the picture blown out and fuzzy. I totally agree that with a proper CRT, that TV would have an excellent picture. Seems the circuitry is in good order. And really, at the end there, that picture is not too bad at all -- totally something you could live with, if that cataract was gone.
I clicked "like" before i even started watching, superb stuff shango, here in the 70s ULTRA, PYE and Ferguson were all tvs with exceptional picture quality, you are right with a good crt LCD doesnt stand a chance. an English friend.
I dream about these old TVs. As a kid growing up in NZ in the 60s... we didn't have color until the early 70s, and only BW sets dating back to about '62-3 (all PAL) No roundies at all, and certainly no older color sets. But I'm still obsessed with old TVs, and have a modest collection of about 9. Color roundies? Heaven.
My grandad was a tv engineer back In the day and I use to walk around his workshop looking at all these TVs watching him work on them. Amazing. These videos feel like home
Great video, diagnosis, repair, and setup! Thanks for not editing out the various repairs that you feel weren't effective, the pitfalls are part of the journey and are great education on what you have to do to get the job done. I always learn from your channel Shango, it's much appreciated! And no one that's been at this channel longer than a minute thinks you're a newb or an idiot. Far from it; we've seen you resurrect some pretty challenging sets, you know what you're doing. Far more than a lot of us here. And don't clean the motherboard! Keeping it dirty is worth it if it tweaks someone! ;o) Picture looks good considering the condition of that CRT. From the looks of the comments there are some people interested in giving it a home, hope someone follows through with that. Thanks again for the ride, looking forward to the next one.
I bought one of those RCA roundies back in 1972 for $25 and added a transformer to boost the CRT filament voltage. After a convergence setup, the colour was fantastic, especially on the Johnny Carson show.
Blue lateral was for horizontal movement, from delta gun sets. What a difference you made to that picture, the flower did look amazing too:-D The convergence settings are a real pig to get right. I've spent too much time on some sets, dam convergence.
Howard Bee Yes it's so true, it took me a hell of a long time to let go and say "That's good enough." or "i can't find the fault, it's not worth the time". I always wanted to help people that could not afford a new set/vcr/stereo or other device. I don't regret helping people.:-)
@@zx8401ztv - It's been about 35 years since I've worked on these old sets - never thought anyone would be doing it now - wow! _I'm a recovered perfectionist, myself_ Cheers-
Hello Shango, The old timers in the shop I worked at in the late 1970's told me after degaussing, to turn the degauss coil perpendicular (90 degrees), at the center of the screen, then move away slowly. Just a tidbit of how they taught me to do it. Fantastic finding that leaky disc cap. Swear I've seen that issue before, way back, but never solved it.
I got my first color TV in 1981. It was a Philco roundie. It would eat the 6KD6 HO tube every 3 to 4 weeks. My friend who was a TV tech had several of these tubes used. He sold them to me as I needed them for $10. He showed me how to change them on my own. I also had to have a degausser made to keep the color clean.
Dude that’s the same on hold music they all use. Anyone else notice that “boop” sound these call centers use them they answer your call? Loved the video. I want to find one of these sets someday. They’re rare here!
thanks for one more very good video ! When I remember it right, the purity-alignment has to begin with putting the defl. coil at front as wide as possible, then you get a colour-mixed-picture (only red is on, as you said) with a red spot. This red spot has to be centered in the middle with the purity-magnets and now the defl. coil has to be moved to rear, the red spot in the midle will be bigger until the red-raster is filled out and most pure. You can do it also in your way, I did it, too, but its not the correct way to do it, when I'm right. I would agree with xsc1000, its more usable to measure in the colour demodulation-unit with the 8 colour bar-test-signal. I am more familar with PAL and SECAM, too. You get a feeling for the right look of the h-synchronisized signals, if you compare them with a working unit. Your way with the vectorscope is in my opinion a bit too complicated to do, needs much more experience to interpret faulty signal.
Oh man, that last part, with the tv actually working took me right back to the early 80’s. Laying on the floor in front of a giant console tv with a screen just like that one, and watching Saturday morning cartoons!
Да, я тоже не ожидал, что такой старый ламповый телевизор выдаст такую качественную картинку, которая не отстает от многих поздних телевизоров например из 90х. Основное отличие - это лишь наличие некоторых шумов, заметных при равномерной заливке экрана одним цветом, а вот цветопередача ничуть не хуже.
I get motivation to fix my stuff from watching your videos, you kept me entertained last christmas. Shame about the cataract, we didn't use that type of protective faceplate on UK tv's but I've seen the effect on oscilloscope tubes.
Great video, good that you were able to get that set looking decent. After seeing orange people on these things for many years, it's nice to see skin tones that look like people. Remember that the NTSC color subcarrier is really a suppressed carrier quadrature modulated thing. Looking at your vectorscope, you'll notice that R-Y is at the top of the screen, and B-Y is on the right, 90° in phase from it. It's just that when matrixing these things together it gets confusing. Much of my knowledge of quadrature modulation came from trying to figure out how to directly modulate an Ampliphase transmitter with left and right audio, and have it come out C-QuAM stereo at the other end. Never got that one settled, but I did find another method of gathering the vectors to angle modulate the transmitter with.
This thing is almost as old as I am, but nice save shango066! Really, the colors look pretty darn good for it's age. REALLY COOL! Two Thumbs Up! Schematics REALLY helps when you can get them. Otherwise, makes it impossible.
Whoa, Model V-7 Vector Scope is awesome. I worked a lot of Microwave Radio and Satellite communications equipment but never television sets. I think I missed out on the TV side of things.
thats got a great picture and colour to. i live in scotland and colour tv came to us in 1976 with hybrid valve and transistor tvs, cant believe you had colour so much earlier than us , 1966? wow
Wouldnt it have been a good idea to put a slightly higher wattage resistor in there as a replacement since its a common failure part suggesting a design flaw ? Rewatching your old videos because the world is increasingly crazy and these videos take me away to a better place . This channel has helped me get through the years with soul crushing depression. I could watch these videos forever . Its just pure brilliance . That quote from charlie and the chocolate factory comes to mind when I think about shango .."There shines a good deed in a weary world"
My first color tv repairs were the ctc15. Back when they were in use, I don't remember any in as good condition as yours. Clean, no dust and cig smoke, no dripping flyback. Bad 6BK4 by GE replacement in this type of set could produce soft x-rays under the hv area. Started the x-ray scare. You can crank up the hv in this set. Some diyers thiufht it would make it brighter. Just more likely to make it fail. Earth science teacher in high school got me a dosimeter badge to use while working closely with many 6bk4 regulator set. Never showed anything. Later sets had fixed precision resistors in place of pot, and of course later, shutdown circuits.
Thanks for posting these long-form diagnostic videos! The re-watchability is high for these as they serve as a vital archive for troubleshooting vintage sets. If you're still looking for a home for this set, I'd gladly take It, so long as you'd be able to bring it to the ETF convention (are you going?) Keep up the good work! These vids make me actually look forward to Mondays
Have to admit that I love the idea of having an old console TV set around. Something very nostalgic about them. Still have three 27" CRT TVs that I keep for playing old video game consoles with but they're all from the early 2000's so they don't really count.
I like how the oscilloscope display pattern is printed out on the schematic. Makes it more useful for advanced entertainment electronic technicians. "Debbie Boon - You light Up My Life" LMAO
If you google 'crt phosphor research' there is a pdf listing all the phosphors used and their uses and composition. (Pre 1965 I think). Also for confused new people - To converge a TV set there is a technique that is usually adhered to. There are two steps to adjusting convergence, static and dynamic. The center of the screen should be set first statically with the yoke magnets. Turn off blue gun and align the green and red in center. Turn on blue and align that. Then...i forget if you turn off blue again? but anyway then the dynamic controls (electronic) on the convergence panel can be used to set extremities. Repeat procedure. Purity adjustment ensures the electron guns hit the right phosphors through the shadow mask. Degaussing is also in effect a purity adjustment and this removes any remaining magnetism left in the steel shadow mask which would lead to misregistration of electron beam. (Some early TV didn't have automatic degaussing at switch on - Though even this can not remove highly magnetised shadow mask errors - you would need to do what Shango did.) and as Shango showed this purity adjustment must be done first.
I hate these things, many atvs, quads, dirt bikes hell even air compressors have fallen victim of these hell demons. They like to crawl up the exhaust and build their nest in the cylinder or build nests in the air boxes
Marka Oslo normally they are capped immediately after landing with a fabric sleeve and a "remove before flight" tag. However sometimes they are not covered right away. I have also seen spiders cause issues. I had an aircraft once abort takeoff due to no airspeed indication. Sure enough, there was an obstruction in the system. A blast of compressed air resulted in a mud dauber and its small nest shooting out the front of the tube like a cannon!
Love your videos. I'm working on a CTC15 right now too. It's working pretty good as found. It has a "craporama" CRT, but it tests good and produces a nice picture. It's a 21GVP22, dated 1971, with absolutely no cataract so that's a plus. There's a few of the same corroded wiring issues like you've got with this one but thankfully it's pretty clean. No cigarette paste or crust. I plan to just run with it and see how it goes. Keep up the good work!
1:05:00 ish When you returned to a live picture, I was amazed but then you cleaned up the noise and the picture was terrific for a tube of nearly 60yrs of age. Imagine, if I was amazed at this picture when I have a 50 inch 4K smart tv .....what the audience would think in 1962..... TV design was in its infancy then and this set produced great pictures. Great fix my man...... Literally risked life and limb on these potential death traps of the day.....
all plastic cabinet with chinese parts, both sweep circuits in one single IC, fancy menus and usb connection to make firmware updates? NO THANKS...for that i have my big LCD.....i like my vintage tv's the way they are. i use them occasinally to watch old movies. the way things were built in the 50's was just beautifull when compared to chinese shit these days
ive heard of people getting 1080i (crt equivalent of 1080p) with some fine tuning and slight mods, would probably only work on a digital set, most crts can handle 480i, which isnt hd by any means but dvd quality, and ok for youtube, main issue is overscan, part of the picture would likely be cut off and on digital sets that can be a pain in the ass to fix, if it even can be
Awesome fix man you are good. I love watching these videos. I bet those people that had no boarder wall are now wishing or changing their minds about now that millions of criminals are crossing their property everyday now. They are getting run over about now. Ha they got what they wanted. Sometimes we get what we want and its not pleasant.
Man I would love a tv set like that. I think it is so cool! It is a shame that I was not subscribed when you uploaded this video. I would of put so much effort into the set to get it back to it's original glory. Well, I hope it found a good home. And keep up the great work! Kind regards Ewan.
Shango, if I recall, the deguassing procedure is done with the set powered down (or in the first several seconds of power-on when the CRT is not in operation). My RCA manuals aren't with me here, but that's what I recall from 55 yrs ago. Then CRT setup: purity, screen, focus, height, width, followed by basic convergence. If you had color signal issues, then you'd do signal tracing starting at the video detector, looking for decent composite signal, then color separator and first chroma amp, then color-burst oscillator, then chroma detectors and then the I/Q matrix just before the CRT. At that point, you've got a color picture on the screen. That's the RCA recommended order of things, but you've gone with a simpler more direct 'existential' approach. ;-)
Love watching your work. I would really like to see what you are adjusting when you are doing your setup/alignment. Maybe do a split screen when you are tinkering with the yolk and purity magnet and aligning the colors. I would love to see that! Thanks for teaching repair procedures
I recap as more of a safety measure because I don't have a variac to bring the old caps up safely. I don't ever expect it to magically cure all of a set's problems, but it often does help quite a bit. I just troubleshoot any additional problems after the recap.
The game show you commented as old is Sale Of The Century. You likely had the channel on Buzzr. Buzzr is owned by Fremantle Media which is gradually changing to just Fremantle. Fremantle International nailed a video where I played some Steve Harvey era Family Feud. Each game show has the Fremantle logo at the end on Buzzr.
i use be a TV tech use fix all those types chassis , lots memories for me. Shango is good tech, lots experiance. after everything changed in technolog there was no money left make living at it any more. all became throw away these days. darn i still have 11 big trays loose tubes thousands of tv tubes for tthose sets. damn i wish it was those days again use love fixing tvs into the night. this sets made last long long time. be green if we have tvs last 100 years .
I was 5 years old at the time that was made. We didnt get a color tv until I was about 5 because my dad said they were too costly. He never bought a new tv so he was always replacing tubes in our tv. I didnt find out till later he was color blind, which explained why the color never looked good in any of our TV's.
I’ve got a couple of those Lectrotech V-7 vector scopes that are in pretty rough shape, but restorable if I wanted to. Some day I will make a decision on them.
I'd recommend to run the degaussing coil 30 seconds each run. They can overheat and break easily if overused per run. I'd do that just so I don't have to buy a new one then.😁 Very good job getting it aligned, my big tv just needs a brightener on it and it will be back to good.
