Every time I watch a color television set up it occurs to me how amazing the color mask manufacturing engineering. The alignment of holes to the dots. The directing of electron beams through micro holes and hitting correct color. It's all highly advanced physics yet it was honed to perfection and mass produced in the millions.
@skuula
Жыл бұрын
Afaik, the phosphors were applied through the installed mask.
@directcurrent5751
Жыл бұрын
@@skuula That sounds sensible. I'm persuadable. But just making the mask, such precision required, and the additional behavior considerations, such as conductivity, condensation, etc. Three separate CRTs had to be an attractive option. Much less engineering and almost no new manufacturing challenges.
@johnnytacokleinschmidt515
Жыл бұрын
@@skuulaI don't know for sure, but i don't think so. There was a video from RCA where they talk about silk screening the phosphor dots. I think...
@davidbeard7262
Жыл бұрын
@skuula Close; using a photographic process. It goes something like this: Apply phosphor to screen in a slurry, let it set, apply photosensitive resist, install mask, expose using light source ("lighthouse") where electron gun would normally live for that colour. Remove mask. Rince phosphor and repeat for other two colours.
@dougbrowning82
Жыл бұрын
@@johnnytacokleinschmidt515 There is a Philips video on Periscope Films, I believe. Covers all the steps in picture tube assembly. Philips was one of the few companies that made their own tubes. Unfortunately, they've quit the electronics business to concentrate on medical tech.
@whatleyglen7148
7 ай бұрын
As a teen working in the TV shop in early 70's, I was able to take home a console RCA roundie that had a F-K short in the pic tube. I added an isolation xformer & used that TV for a few years. The almost earth-tone warmth of those early roundie CRT's was just wonderful. I think it was something like a CT16 chassis. Freakin' MASSIVE!
@whatleyglen7148
7 ай бұрын
As a teen, I worked to an independent servicer in North Jersey and learned how to set up color tv's of that era (Early 70's). I loved doing it as each TV had its own idiosyncrasies that made it a challenge nearly every time. I lost interest in repairing TV's in the mid-70's and moved on to audio, so I never made it to converging the Color Tv's that had you attaching magnets to the CRT to correct for the CRT's artifacts.
@hestheMaster
Жыл бұрын
I haven't seen a color TV alignment like this since I was a kid and my grandfather adjusted all the convergence and color guns on an ailing RCA 25 incher with chassis CTC-38 way back in 1971. My dad got it almost for free but didn't know how to fix the color. We watched it in black and white for a few days until grandpa got a hold of how to align everything with the RCA service manual. He did pretty good for a guy who was colorblind and never told any of us of that condition. We watched that old set for many years until the flyback gave out. It ate 6GH8 tubes until grandpa changed a coil in it on advice from another TV repairman fellow that he knew.
@Zickcermacity
Жыл бұрын
Today we do something to TVs and other displays called "calibration". Trying to explain calibration to the average person, for me anyway, has largely been an exercise in humility. I try to explain that calibrating the TV settings simply means setting the basic controls(contrast, brightness, color, etc) so that a test pattern appears a certain way, and do grayscale adjustment, so that content appears over the TV as the director or producers intended it to. But most just look at me glazed over, or go "I don't care, as long as there's a picture".
@beamer.electronics
Жыл бұрын
Converging a TV in the dark, Shango66's voice, nighttime birds singing, a fly beating its wings from the left across to the right, in the distance an am-blance sounds, and strange lights emanating from the screen with the occasional crack of a leaky EHT lead - the soundscape is brilliant. Very reminiscent of a Pink Floyd concert man - keep up the great work.
@robertgaines-tulsa
Жыл бұрын
The crepe erase as personal lube thing nearly killed me. Seeing a CRT TV working even through my HD LCD TV brings back memories. Television was simply the best on those old CRT TVs. It's probably because they actually believed in good writing when CRT TVs were in use rather than shoving out politically tuned garbage. Just things I miss that will never come back again from a moment in time long past. I don't watch TV anymore except for severe weather reports.
@Suddenlyits1960
Жыл бұрын
Yeah,the commercials are a joke. Mindless consumerism.
@cmans79tr7
Жыл бұрын
I love the nostalgia i feel when i see TVs on this site and the date "1966", and i fondly remember what was available on TV for children like me back then. As of 1966, it would be another ten years before my dad would bring home a color TV to the house. We only had B&Ws to that date. That "modern marvel" was a boxey, faux-woodgrained 19 inch non-remote control Magnavox tabletop, utilizing a fixed, roof antenna for reception from NYC 60 miles away as the crow flies. The TV nestled on a nice roll-around TV cart. It was also the only TV in the house.
@agostinodibella9939
Жыл бұрын
This really brings back memories of when I took a television course at RETS electronic schools back in 1977. Very cool!
@billmyke746
Жыл бұрын
RETS Was one of the best electronics schools around in those days.
@davepike6170
Жыл бұрын
I was in RETS in Detroit, on E. Grand Blvd. at Mt. Elliot in 1978, and part of 1979, in a part-time Color Television Servicing Class. I worked at the TV shop starting at age 17, in August 1977, part time. I went full time at the shop at age 18, and got off a couple hours early two days a week to attend the part time class at RETS.
@dstrau7987
Жыл бұрын
@billmyke746 Yes it was. My cousin went to the one near Philly (Broomall, PA I believe) in the early '80s.
@mrnmrn1
Жыл бұрын
1:26:53 That is PVC insulation on those wires chemically breaking down, which converts the copper to green slime. Those wires all need to be replaced, because it will damage components and the board itself. It also might be conductive at high voltages.
@godfreypoon5148
Жыл бұрын
I understood that green slime to be plasticizer leaching out of the PVC, not the PVC or copper itself.
@mrnmrn1
Жыл бұрын
@@godfreypoon5148 Yes, the slime is the plasicizer, but that is supposed to be transparent. The green color comes from copper corrosion, caused either by the plasicizer itself, or by some byproduct of the chemical breakdown. I'm not a chemist, but I assume some chlorine might be released from the PVC, as the bond between the plasicizer and the PVC breaks down. And chlorine is definitely corrosive for copper, and for most other metals.
@godfreypoon5148
Жыл бұрын
@@mrnmrn1 I'm not a chemist either, but it definitely tastes like cancer.
@yippdogg9250
Жыл бұрын
Nothing makes my day better than seeing the Shango video however, simultaneously nothing makes me wanna bang my head into a wall more than listening to infomercials 😂
@acoresbrasil
Жыл бұрын
I just love Shango's humor! 😂😂😂😂 Just the best!!
@Jakehallslewis88
9 ай бұрын
Love the color on that tv wish they brought these tvs back but have 4k HD or HD on them love to have a crt again
@1marcelfilms
Жыл бұрын
Love these long videos rather watch this than a movie
@bobbyk6585
Жыл бұрын
Wow, over an hour of Shango... I'm going to need some rehab afterward. I remember manually degaussing the CRT as part of setting up a set in for repair. Long time back.
@brendanvogele2531
Жыл бұрын
The show behind the curtain must go on. We don't need to fear where politicians disagree, it's where they silently agree behind closed doors where we need to be concerned.
@Synthematix
Жыл бұрын
Unfortunately life is too short for politics
@chetpomeroy1399
Жыл бұрын
@@Synthematix Politics can excessively monopolise your time if you let it, that's for sure!
@pfeinauer
Жыл бұрын
It's really a shame that a wonderful channel that describes how to repair old TV sets, has politics brought into it. Yes you can talk about anything you want, but I can guarantee this channel would be a lot more popular without political comments. Synthematix has hit it perfectly on the head.
@Synthematix
Жыл бұрын
@@pfeinauer Thank you, weve got all the king charles III bs here at the moment, im sick of it already, i come to channels like this to get away from politics
@norcal715
Жыл бұрын
I used to enjoy getting the purity and convergence just right in the 80's and 90's, I thought it was relaxing, until Sony came out with the 36" and the 40" CRT's in the early 2000's. You had to stick so many button and tape magnets under the yoke to make it perfect. The larger sets had coils to determine the angle of the set and automatically apply a bias to the purity.
@joeblow8593
Жыл бұрын
I did watch it all way to the end, spread out over 2 days.
@declanmoran1894
Жыл бұрын
Yip , I watched ' till the end , wouldn't' miss it ! Crépe erase as personal lube comment just cracked me up 😂 Great job done & great you are preserving these vintage TV's .
@chetpomeroy1399
Жыл бұрын
Decades ago my parents had a '64 Sylvania color roundie and it had a *constant* problem with barber poleing. Not long after when that was fixed, the selenium rectifier blew and stunk up the place.
@jdod64
5 ай бұрын
I bet, those things stink when they are working!
@chetpomeroy1399
5 ай бұрын
@@jdod64 The ozone from the high-voltage corona generated by the set was less than pleasant if one was downwind of it.
@markrhine5809
Жыл бұрын
Dear Shang066, Excellent job on the color setup, Picture looks great, you sir are very, very talented on television, repair. Nice Job.
@rpn000rpnca
Жыл бұрын
Bought new Sylvania TV in the 70s. Couldn't wait to get rid of it and buy a Sony. Never had a problem with the Sony.
@douggrisack5916
Жыл бұрын
A Saturday shango tv video improves my skin tone every time.
@neil6958
Жыл бұрын
I used to work on tv sets, I have found that a front to back motion with a deguasser and then a quick forceful pull back of the deguasser always got the screen pure. Of course, this has to be done several times. And you watch for purity. And of course, several other motions. But a quick pull back always gave me the best purity. And I would always try to get a red screen. A well degaussed Red Screen with cause everything else to have good purity. Convergence comes after that. For stubborn purity problems, I would use a speaker magnet, in the same motions... constant front to back motion until all impurities were removed.
@780bpmclicktrack4
Жыл бұрын
I'm like you Shango I'm partial to Zenith. I was 10 years old when my dad bought a zenith used for about $ 20.00 at an auction. A 25" CRT... That thing had to be fixed once in 20 years!! And the picture, OMG !! Wonderful! They moved to Ohio from Va. in the early 90's and gave the set away which was still going strong!
@8080pc
Жыл бұрын
Watched every minute like your other videos. Who knew I'd like this so much? Wouldn't have the physical ability to handle the lifting this hobby requires but I can enjoy here.
@MrSloika
Жыл бұрын
I've got a couple of CRT TVs in the basement. An Admiral 19in B&W from 1965 and a Philco-Ford 25in color from the late 70s or early 80s. I remember watching the Philco when I was a kid, it had a beautiful color picture. I remember how visitors would comment on how nice the picture looked. I'd like to get both working but both have dead tubes and the chance of finding a working tube for either is slim to none. I'm thinking of gutting both and installing flat panels in the cabinets.
@bigalsmallengines
Жыл бұрын
Would certainly set this in the house and watch it. Almost looks as good as a classic Zenith. Cheers Shango! 🍻 -Al
@callenmeyers
Жыл бұрын
I watch almost all of your videos. I hope to adopt a set from you some day. That arcing certainly kept things exciting.
@paulzehner9419
Жыл бұрын
My parents had a Sylvania tv in the 70s. Overall good picture. Every so often it made that arcing noise for yrs before it crapped out. I still remember him doing the color convergence tuneups on that tv.
@dontknowbrian
Жыл бұрын
Yea, who’s your daddy? Who lines your pockets? I always thought Sylvania television sets are crap! Great job there! You made that set a little less of a turd.
@johnnytacokleinschmidt515
Жыл бұрын
6:30 6.5 mm close to one quarter inch hex. VG91 Multiburst Bar pattern to check video high frequency response. RCA also had that tinted smoke anti-glare diffused safety glass. 1:02:00 I've been known to erase Crepes with butter, real maple syrup, fork and knife... 1:06:00 I thought Huey was spoofing The A-Team when he was under the van fooling around with tools after a crash. Really looks great to me on the cell phone KZitem. You're the man, Dan!
@defaultuserid1559
Жыл бұрын
That Sylvania was arcing the way our old tube TVs did in the summer when the humidity was over 90%. It eventually stopped when they warmed up.
@dougbrowning82
Жыл бұрын
Reminds me of the time my dad brought the Philips K7 he was working on into the house from the front porch one cold January. Forgot all about the condensation from the warm air contacting the cold tube. Turned the set on and got arcing from the anode connector to the dag.
@townhall05446
Жыл бұрын
I always liked those Devo hats. I tried to buy one once but they didn't have my size. And if you get it too big or too small it looks funny.
@swhod2190
Жыл бұрын
You remind me of my reactions to commercials, minus, of course, the expletives.
@a1wireless1964
Жыл бұрын
Any time you deal with removing a frosted glass cataract when you put it back together, you get a somewhat blurred image, your image is never crystal clear, it's the air gap. It's even more noticeable when you get the safety glass that is frosted and Tinted as it throws the colors off as well.
@richclips
Жыл бұрын
Always watch to the end Dan, sometimes in several segments, but love your content, so thank you. Warm regards from London
@danhubanks554
Жыл бұрын
Thank you and Have a nice day
@DavidBerquist334
Жыл бұрын
There are news cast on KZitem from almost every year I just put in KZitem 1976 news broadcast and I found a lot of them all in a row
@NZHippie
Жыл бұрын
Another Great Video, every minute of it, even the 'trigger moment' got a LOL...
@Burgoseletronica05
Жыл бұрын
Regards Mr. from your collegue of profession from Brazil.
@EsotericArctos
Жыл бұрын
It always amazes me to see just how good even a cheap CRT television can look. It may not be High Definition, but the picture quality still beats a lot of LCD TV's. Given how long this tube was sitting unused, it might be waking up as it runs. I have heard rumours tubes and CRT's need a break in period, but never actually heard anything official. It could also be some caps waking up making the set improve :)
@MVA13037
Жыл бұрын
Another great educational video on electronics repair with the quintessential commentary that doesn’t disappoint. Thank you for trudging on!
@teacfan1080
Жыл бұрын
Well, the Sylvania Arc-o-Matic is working pretty good. Alot sure goes into a setup. Good picture now.
@t0nito
Жыл бұрын
The second chassis looks so much better. The softness is most likely from the air gap between both glasses, also, the front glass looks slightly frosted, even with the set turned off you can tell there is some fuzzyness going on. Maybe a solution would be filling up the gap with some clear epoxy perhaps?
@coyote_den
Жыл бұрын
I saw a fly land on the screen at one point. It's just trying to be a bug zapper. At 37:46 there is a fly buzz that sounds like it is coming from far off to the left and behind me. I'm watching on a MacBook, stereo speakers, no headphone or surround. The effect is downright uncanny! If I'm not directly in front of my laptop it goes away. Your camera mics managed to encode one hell of an accurate HRTF on that sound.
@levimevis5192
Жыл бұрын
Hi Shango, i have a 1974 GTE/Sylvania GT Matic Console thats Solid State and uses the same "octal tube socket" convergance plug setup as your TV you're working on here and the octal plugs are keyed one has eight pins and one has seven pins and also the center keyway pin is oriented different for each socket.
@1990lumina
Жыл бұрын
Good morning!!!!
@connorm955
10 ай бұрын
I had a smearing issue with a CRT, but it was only present on one of the video inputs. It was a 1989 LXI with an RCA A68AEG20X02, it was like brand new it was super bright.
@1112223333111
Жыл бұрын
I been working on a 1966 chrysler newport (windsor). wheel bearings and axle seals..fun fun
Mr. Shango I am going to miss watching you when you decide to retire from making such entertaining videos. I don't mean to be negative but we're not getting younger. I'm 61 and feeling it. The best thing I like about your video is watching you diagnose. I have been a TV repairman for a long time and I try to guess what's wrong while you're into it. Its like watching a game show and trying to make the best educated guess as to what's wrong. I watch other videos but they don't use test equipment and start spraying pots and recapping and that's just so boring.
@gregoriagregg7411
Жыл бұрын
A coil alignment made a huge difference on that TV. Took it from wrinkled blurry and soft to smooth and hard.
@jimw7ry
Жыл бұрын
The final results do look really good Shango! Well done!
@One-Crazy-Cat
Жыл бұрын
Warning about the tube implosion possibility sticking on asbestos. Lol. Fantastic
@mfd70
Жыл бұрын
A very interesting and entertaining hour and a half plus on a Sunday evening. PS, Trump or RFK ? Either must be better than the status quo.
@OldSkoolF
7 ай бұрын
Excellent work!!!
@user-cm4ym3ei3u
Жыл бұрын
فنان في عملكم مبارك لكم
@telemedic5142
Жыл бұрын
If you mix them together you get a stiff neck! Great vid, thanks!
@Netties8266
Жыл бұрын
Don’t put it on the o’l fella. It get too stiff
@RoughJustice2k18
Жыл бұрын
@@Netties8266 So a Viagra commercial is "hard to handle"?
@minty_Joe
Жыл бұрын
The Huey Lewis song playing around 1:06:00 is "Doing It All For My Baby" off of their 1986 album 'Fore'. Patrick Bateman's favorite album (American Psycho).
@jeffadams5510
Жыл бұрын
Since hearing the word used several times on shango's vids I finally looked it up. Do yourselves a favor and google the definition of DAG-LMBO!!!!
@TechGorilla1987
Жыл бұрын
@19:26 - in about 1984, I was messing round with large speaker magnets and the TV screen. I thought it was cool that it made colors with the magnet. Dad ended up having a repair man come out and use this coil on the screen to get rid of the purple blob that my magnet left. It was one of the honking rolling consoles with a top-load VCR stacked up top.
@chezsnailez
Жыл бұрын
That's one snappy li'l Fernseher... B & H Photo Video has that Minolta MN53Z camera on offer for $279 (it's list price is $399) Didn't know kangaroos were allowed to practise law in New York...
@alexpinkerton7459
Жыл бұрын
The asbestos sheet really sells that TV to me.
@darkobrankovic4979
Жыл бұрын
And whenever something is from 76, I am like WOW. I am also from 76...
@syd8921
Жыл бұрын
I remember hearing you say you have been repairing tvs and radios since the 90s. I, have not, but am starting my degree in electrical engineering and I love old crts. How could I get into repairing this kind of stuff and really understanding how they work and how to diagnose issues? Thanks for the videos, they are kickass
@volvo09
Жыл бұрын
Looks a lot better than it was. Looking forward to future videos diagnosing the color lock.
@tommynygaardjensen8398
Жыл бұрын
I personally think that a proper radio & TV repairman could just use a cloth and wipe off the worst dust and dirt when you do such a big job, but there are pigs who don't care 🤔
@monkeyboy4746
Жыл бұрын
The main trouble I see with any of these restoration channels is that once you get the radio/TV working and turn it on, you get today's TV, they are not time machines, I wish they were.
@tomhood8897
Жыл бұрын
It’s your girl Debbie Double D in the house offering the all new 14 megapixel giggler wattle enhancer.
@raysmancave1
Жыл бұрын
With the asbestos, to make sure that any dust is neutralised, before you touch it or attempt to remove it, give the surface of the asbestos a good spray with clearcoat varnish. This seals in any loose asbestos fabric from being inhaled.
@juslitor
Жыл бұрын
given that onset of sympthomes take on average 20 years, hardly worth the bother considering his age.
@xmttrman
Жыл бұрын
Serviced a lot of the early (DO-3, DO-5) Sylvania chassis. That's probably the best you''ll get the color on these. The color sync tended to drift (rainbows). Make sure the resistors on the horizontal oscillator tube are in spec. If the horizontal drive waveform is too narrow it will cause excessive cathode current on the HOT; check that current. I remember the HOT is a 42KN6 or on a transformer chassis, 6KN6. There may be a horizontal efficiency coil to set the current.
@remoteuser3818
9 ай бұрын
I had that same set but the flyback was a dead short. The crt was strong.
@1marcelfilms
Жыл бұрын
The orange man says something: the crowd claps/boos the demented man says something: the crowd claps /boos
@gavincurtis
Жыл бұрын
The other man can’t talk, wanders off the stage, sniffs girls hair, reads from teleprompters and gets his butt wiped regularly.. Strongest leadership ever.
@danielknepper6884
Жыл бұрын
@@gavincurtis I know , supposedly Trump was soooooo bad but they say president potato Head is okay. The left with their double standards 😅😅😅😅😅
@1marcelfilms
Жыл бұрын
@@gavincurtis Surely worth one dollar at least
@gavincurtis
Жыл бұрын
Two dollars…his kid works for energy companies both in Ukraine and China. We are now saving the planet from CO2 by using up our strategic reserves; for easy access. Hope all have practiced their Mandarin.
@eDoc2020
Жыл бұрын
@@danielknepper6884 Today's politics can't work with a double standard. The best we can hope for is somebody who sits and does nothing.
@southerncross3638
Жыл бұрын
Great commentary, the Al Bundy TV and radio repairs it, lol
@dagobertkrikelin1587
Жыл бұрын
Shango has the best political commentary! :)
@R1ONA
Жыл бұрын
i watched it completely
@markmarkofkane8167
Жыл бұрын
I didn't watch it all yet, but I wonder if the AGC is causing the problem? I will finish watching and see. I'm at the weather forecast lady. Ok, that wasn't it. P.S. I agree about the distractions. We're just cats following the laser dots. 😉
@qwertykeyboard5901
Жыл бұрын
I've been zapped by the suction cup before. The pain is distinct, and it lingers.
@johnsampson1096
Жыл бұрын
I wonder how long it took at the factory to set up these adjustments. I'm sure with all new components, it was much easier. Thanks for the tutorial, Shango!
@BG101UK
Жыл бұрын
I hope the convergence controls are kinder to your fingers than a set I worked on years ago .. a Philips G8. I could have done with an adjustment tool to fit on the pots, I think that might have been the intention.
@randyr.parker2698
Жыл бұрын
Didn't trigger me, I agree 100%!!!!
@Gr8Success
Жыл бұрын
not gonna lie that $49.99 smartwatch and 3 extra straps sounds pretty sweet !
@ToTheGAMES
Жыл бұрын
The mosquito @ 37:00 onward got me good, I thought it was here haha
@frankowalker4662
Жыл бұрын
I like your idea about the softness being down to an air gap between the CRT and the safety glass. Trump talks a lot, but says very little. If you use Crepe Erase as lube, you will have the smoothest bits in the world. LOL.
@bengeorgeschannel6568
Жыл бұрын
Another excellent video. Thank you very much!
@walterbatman7949
Жыл бұрын
Great video
@W1RMD
Жыл бұрын
It looks great! Just needed that blue pill.
@One-Crazy-Cat
Жыл бұрын
Homicides are down in LA as everyone is leaving.
@killcar5nbike2
Жыл бұрын
I always feel like there needs to be something transparent that makes perfect contact with the screen and the safety glass to sharpen the image. If it were full of light oil it would definetley act as a lense, then eventually start leaking everywhere at some point.
@jasonthejawman5442
Жыл бұрын
Picture looks shard , picture looks clear
@UHF43
Жыл бұрын
That red smearing reminds me of the Videocolor Black Super Planar CRT's we had in Europe in the 80's. Those things smeared badly even when new.
@QsTechService1
Жыл бұрын
Nice TV good to see you get it going
@Radiowild
Жыл бұрын
Bushings? Bushings? We don't need no stinkin' bushings!
@ShadowsOnTheScreen
Жыл бұрын
Now I need a smart watch
@blackvinylgrooves
Жыл бұрын
Those Crepe Erase infomercials are a hoot. I love it when you ridicule them, don't stop. There are much better, and cheaper, products out there for this purpose.
@zipporah7588
7 ай бұрын
I have a question and I see it with this TV here. How come there are some 30kd6 and 40kd6 tubes that are twin tubes?
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