Discovery How Its Made - Cathode Ray Tubes (480p) -=KCK=-.mp4

[@KrisRyanStallard]

I'm surprised at how manual the process is. I would have expected very little human involvement.

[@BritishEngineer]

CRT manufacturers like Sony used automation even down to robotic glassblowers, I have no idea why this manufacturer does it manually

[@TheSimoc]

@@BritishEngineer Just for same reasons everything is made with and without automation. For niche products these seem to be - uncommon models for special equipment and/or vintage televisions - it is not economically feasible to invest in automation for such small production volumes. And for demonstration, showing manual production is way more sensible than automated process, where it would be more difficult to get a grasp of what is really done and how.

[@technopoptart]

please understand this show was in production in the 00s with this episode in particular being around 15 years old. the information is going to be heavily out of date

[@KrisRyanStallard]

@@technopoptart it's not like it's from the 1940's. We had been manufacturing cathode ray tubes since 1922. I would have expected manufacturers to have heavily refined the process and automated it. But maybe so few are made, even in the 2000's, that it's not worth the money to develop specialized equipment.

[@technopoptart]

​@@KrisRyanStallard it isnt about the age of the item though? it is about the overall cost of manufacturing. you are imagining much finer software, much more expensive hardware and much laxer workers' rights than what was reasonable to expect. you are ignoring the cost of throwing away perfectly serviceable tools, demolishing/renovating well-working buildings and firing educated and experienced workers in an effort to be more in line with the aesthetic hopes and dreams of people who are not part of the process. up until the mid 2010's most manufacturing around the world still had a lot of human hands in it. from silk flowers to car doors to chicken wings. why pay 15k on a specially calibrated virtual eye to sort out cracked bulbs and askew bolts when a human can be paid the same price to do that job and three others? it just isnt economical or practical to digitise the process of creating something when it is faster, cheaper(and at the time) less error-prone to have a person do the same work. gonna be frank, a lot of factory work _still_ relies on human hands for the beginning, end and occasionally middle bits of the manufacturing process also, i looked it up, in the year 2005 alone about 130 million crt televisions were sold. it wasnt a niche product by any measure

[@timtim8468]

The tube is harvested from a tube tree, then the production starts.

[@henryhildebrand4236]

l,mao

[@RideRedRacer]

where are the tube farms these days

[@ian_b]

These days most of them come from factory farms.

[@danielt619]

Lol

[@julianreverse]

@Micah Schwartz That's sad :-(

[@RamClaw]

It's interesting to see how a CRT is assembled. It's interesting to see how a CRT is assembled.

Error Error

[@ModMokkaMatti]

That's no error, that's just a content copyright strike avoidance technique! 😂🎉

[@yereverluvinuncleber]

It's interesting to see how a CRT is assembled.

[@ugurunver2403]

It's interesting to see how a CRT is assembled. It's interesting to see how a CRT is assembled without any sound.

[@yereverluvinuncleber]

Agreed, it's interesting to see how a CRT is assembled.

[@pawleymediaconsultantsllc5]

Something tells me this is a specialty shop that makes "replacement" tubes for antique Televisions. The footage looks recent, the laborious and manual process, looks like a low volume custom tube facility. It would be interesting to see if they have a similar "replacement" color tube factory.

[@TheLawrenceWade]

It looked like a large magnetic deflection monochrome tube with green phosphor. So.... yeah, what's it for? Definitely scientific or medical. I think if it were for PPI (radar), the face would be round and the neck would be stronger to deal with the spinning deflection yoke assembly.

[@lillebrorsanvincent2017]

Does not mention lead in the glass, perhaps that is not necessary for the new type of glass

[@BGTech1]

2:41 you can see all different custom replacement tubes

[@technopoptart]

it is not. this is actually a very old show. the footage is from 2008

[@relo999]

@@technopoptart considering CRTs aren't made anymore, saying the footage is recent is relative. As in the last 30 years. While the CRTs being build look like they are from 50+ years ago

[@ChristopherAndersonPirate]

No wonder these things last forever. The amount of craftsmanship in well made CRT’s seems insane

[@jspringer86]

Last forever? The flyback transformer used in these things are a curse unto repair mankind.

[@anonymousx6651]

You couldn't handmake modern OLEDS or LCDs if you tried. Crts also don't last too long simply due to burn in.

[@ROSS4422]

They pick the small tubes early during the growing season. Larger CRTs can take up to two years to grow to a full 27" size. Fun fact, if you milk feed a tube on the vine you can grow huge CRTs, this is how prize winning ones are made.

[@directcurrent5751]

I had to get permits mine grew so big.

[@sataniachya1840]

2 years for a 27?, how will take the 32, 38 and the biggest ones , the 40"?, 4 years?,

[@glitchysoup6322]

Oh, streching video to 10mins to use more intrusive ads? Don't worry, I use Adblock.

[@EricH_1983]

I use ADBLOCK too 💪

[@ModMokkaMatti]

@@jorgetucson8196 Bully for you, Rockefeller wannabe. Some of us are still just trying to survive, and don't have boxes of $$$ to bathe in, smoke, or just use for TP.

[@MrV902]

@@jorgetucson8196 LOL "I pay for things that used to be free so I also don't have to watch ads when I could also do THAT for free."

[@jorgetucson8196]

@@MrV902 not in a phone my friend

[@MadnessCompilation]

I use Og KZbin hahaha

[@TheAdventuresOfJimiJaden]

I’m so glad Discovery made this video so not only do we know how they’re made, but can help us if CRT’s are somehow in a high demand again. And it also explains why most of them are expensive.

[@sonyx5332]

I finally bought my first CRT monitor (JVC with 750TVL) for retro gaming. I love it, beautiful colors, scan lines and finally see exactly how older games I used to play on CRT looked. And even better, no input lag.

[@FidWusft-ey4gn]

You're a clown to be frank with you. Old games were not designed to be played on video production or medical imaging equipment.

[@Breatheairmyguy]

"Old but gold"

[@Fairlane500skyliner]

I wish they'd make a more complete video, including how they fit the shadow mask (or in the case of Sony Trinitrons, aperature grill), bond the faceplate to the tube, fix the anode lead in place, apply the aquadag etc... Unfortunately, unless someone has a video of this hiding in their attic, we probably won't get a full video of what it really takes to make a CRT. Damn LCDs an plasmas.

[@HambertHM]

The Aquadag is the black conductive paint you see on the video. I think there's no shadow mask in this model of CRT because it's a monochrome green Phosphor one (i think)

[@blainegardner7427]

That's correct, this is a monochrome green screen. An RGB CRT is much more complicated. Though the basic vacuum tube is much the same.

[@mjfame]

i wish they would make crts again, period

[@andrewhamop6665]

I have an old Trinitron that doesn't work sadly

[@JohnDoe-bf1fw]

@@andrewhamop6665 Troubleshoot it. Sony had excellent service literature for those sets.

[@Debraj1978]

With glass massive structure and a thin neck, I wonder, how they could ship these behemoths. Packaging engineering never got their credit.

[@thehulkamaniabrother2.089]

Hydrofluoric acid. HF

[@GameplayandTalk]

Truly fascinating stuff. I didn't realize there was so much to the manufacturing/build process of CRTs.

[@RastaJediX]

It's the reason we likely can't ever have new ones made. And that's a huge shame.

[@rascalboyd2469]

it's insane that they made these at such a scale that basically every home had one

[@mactep1]

And this isn't even the color ones.

[@trekintosh]

There’s way more than is shown in this video, too. These are just monochrome CRTs. Color ones have a whole heap of extra components.

[@gizmoknow-how2022]

Man I keep getting back to this video! CRT display technology is undoubtedly one of the best technologies of all time!

[@thebossnocompetition8757]

its also the only reference tech of all time. only CRT tvs and Plasma tvs can be calibrated to show an reference image. and CRTs does it better than Plasma tvs.

[@adamrandall2996]

@@thebossnocompetition8757 what do you mean by "reference tech"?

[@thebossnocompetition8757]

@@adamrandall2996 the only tv tech that covers the entire light spectrum that humans can see..around 380nm to 720nm this gives reference status still today. natural light gives natural colors. plus CRTs and Plasma tvs doesnt have metameric issues. picture looks different for different observers.

[@adamrandall2996]

​@@thebossnocompetition8757 Wow that's crazy... I've always heard the exact opposite. CRT's technology always impressed me because it's almost alien compared to modern's one... But now I'm even more impressed. For those interested, here's a quick comparative table of the 4 main techs: en.wikipedia.org/wiki/Comparison_of_CRT,_LCD,_Plasma,_and_OLED_displays

[@thebossnocompetition8757]

@@adamrandall2996 glowing phosphor light allways gives more natural colors compared to LED light that todays tvs are using. Its the same with Plasma tvs. Almost as natural as CRT. Tvs are big light sources i think people forget it. No lighr means no picture. Its the quality of the light that sets how good colors will be. Todays tvs have too intense colors compared to what they should have. That gives this almost plastic cartoon look.

[@inlovewithi]

Considering the process, I would think TVs would have been more expensive back then.

[@Ayavaron]

TVs are cheaper than ever tho.

[@rollercoastermaniac2]

@@Ayavaron last time TVs were over 2000 dollars was the 50s

[@pyeltd.5457]

Max Pain for the 90s 200$ for a 21inch CRT was nothing. Today you pay over 1000£ for a small LCD in your iPhone lol

[@thepibbster1130]

Pye Ltd. phone is a bad comparison. That $1000 goes towards more than just the display

[@pyeltd.5457]

Jason_P_Lind 200 for a new CRT TV like a Sony Triniton in the 90s seems right.

[@brianr987]

In case you didn’t get it the first time, keep watching and you can see it all over again with no sound. Ready to take the test?

[@geraldschomburg5317]

Looks like a 70° tube, which were common in the mid-50s. For me, this looks like a "Hobbyist-Factory". In earlyer times, it was common to reuse the bulb and only replace the electron-system and (if necessray) the phosphorus (at least in the GDR). In the GDR, TV-repair workshops were commitet to return old tubes to the supplyer. I have some old GDR-TV sets whith refurbished CRTs - recognizable by the welded extension (s. 2:49). In western-germany, this was much less common.

[@ugurunver2403]

I was thinking about why would you make a CRT in 21st century, but yes it may be a hobby. Because I find that modern robots using to make a no-more-usable product very strange.

[@blib3786]

@@ugurunver2403 This episode was from the early 2000's when CRTs were still being mass produced. There's absolutely no way that hobbyists would ever be able to make CRT displays.

[@NUCLEARARMAMENT]

@@blib3786 A hobbyist managed to create an integrated circuit, never say never.

[@Wadzhio1]

Спасибо за прекрасную возможность увидеть как делались ЭЛТ-экраны! ))) Эх, сколько телевизоров я сделал в студенческие годы )))

[@TheKrololo]

Никогда не видел экран с такой конструкцией, обычно всегда с катушкой

[@syamsaid8575]

when I saw this video, I miss the memories of working in the ccrt industry with chunghwa picture tube (malaysia) ... closing in 2011 ..after + - 20 years of operation😭

[@SlavicUnionGaming]

Hisyam albanjarian CRT are huge and bulky but they are cool to look at sometumes

[@ninuasneofox]

Old new 📺 1949

[@Jacob.Improvises]

Dude, this is super interesting stuff to me. What part(s) of production were you stationed in? Was the plant open twenty years, or was that how long you worked there? If it's the latter, I am curious about how much automation was used in the process during your time there, from when it was first introduced to how much was involved at time of closing. Sorry to grill ya. Crts are incredible pieces of tech, and to speak to someone that helped build em would be awesome. Wish folks appreciated these things more.

[@random_an0n]

@@SlavicUnionGaming they look best for arcade machines,noting worse than seing some pleb drag out the crt and replace t with a shit lcd screen and consider it a "upgrade"

[@VoidHalo]

There is a second type of CRT that this and most things about CRTs never mention. Most CRTs use coiled electromagnets to move the electron beam. But there are other ones which use a pair of metal plates for each axis, so 4 plates in total, 2 for horizontal, 2 for vertical. These plates have a high voltage across them and since it's all electromagnetism, you can control electrons just the same with an electric field as you can with a mahnetic field. It just seems like smaller screens are more likely to use plates. Like something you would find in an oscilloscope. Which if you don't know what an oscilloscope is and you're interested in electronics or TV you should definitely look them up. They are really amazing devices. For something anyone with a couple hundred bucks can buy. But that's the future for ya. I guess Welp the power just went out for some reason so I'm gonna go preserve my phone's battery and get out of this pitch black bathroom lol.

[@duality4y]

its actually deflecting due to elctrostatic charges the one with the coils uses electromegnatism

[@VoidHalo]

@@duality4y No. CRTs with coils deflect using magnetic fields. CRTs using plates deflect using electric fields. I don't believe they showed any electrostatic deflection CRTs in this video.

[@VoidHalo]

@@duality4y CRTs with coils deflect using magnetic fields. CRTs with plates deflect using electric fields. The coiled ones that use a magnetic field are most common. You'd typically come across an electrostatic deflection CRT display in small scale applications such as the viewfinder in an old video camera, or the display on an oscilloscope. Coils are far too bulky for small scale applications like that. And there's no way to effectively generate any significant magnetic field with just a charged plate. Hence no coil, no magnetic field, no magenitc deflection. www.nj7p.org/Manuals/PDFs/Books/MIT-Radiation-Lab-Series-V22-Cathode-Ray-Tube-Displays.pdf

[@VoidHalo]

@@duality4y And in case you don't feel like reading an 80 year old, 750 page textbook, CuriousMarc just made a superb video about playing with electrostatic CRTs and describing how they work in detail that is very much up to the standards of his channel. I'd suggest giving it a watch. It goes over everything I described, but shows it all being demonstrated. So, visual demos are always cool. And much more intuitive, at least for me. He even shows the insides of an electrostatic deflection CRT and explains what each part does. So you can (hopefully heh) see that I'm not full of crap. Not to mention this stuff is really cool. But that's just imo. In any case, I hope you enjoy the video as much as I did. kzbin.info/www/bejne/sKK4nZmDos19h9U

[@VoidHalo]

@@duality4y One more bitesized piece of knowledge if you don't wanna read that textbook again. Texas Instruments put out a CLASSIC application note about the operation of cathode ray tube displays in... I think it was 1983. It explains the operation in detail but is only a few pages long. I think it's a bit of a tease, but again it should reinforce the points I made about electrostatic displays. It's DEFINITELY worth a read if you're the least bit interested in this stuff. It's not long and dry like a textbook. But detailed enough that you come away with a pretty good understanding of the topic at hand. Which is the hallmark of a good application note. www.ti.com/lit/an/snla017/snla017.pdf

[@guiluka]

Hi hello. I would like to know what has become of this cathode ray tube since when it was new? Have you made either a computer or a television with this object? Please thank you.

[@rollercoastermaniac2]

I wish they still made these TVs. the new ones are just pure garbage, once it dies, its irreparable! my grandpa has one from the freaking 60s that still works perfectly! He only had to fix it once cause the fly back failed. THATS IT!

[@justme...]

how look smartphones with one of these screens :)

[@rollercoastermaniac2]

+Gabriel Ignat fat as hell, there is good uses for both of these

[@pyeltd.5457]

It is replaceable. You go out and buy a brand spanking new Samsung QLED 8 Fucking K, 50 focking inch ya twat bag. Non of this hipster CRT shit.

[@pyeltd.5457]

And it's reparable by throwing it out the window and buying a new one.

[@animegamingdude]

@@pyeltd.5457 You're a bitch.

[@jackpop4133]

now i know why the old school TVs were so expensive!

[@WTM.23]

too much work, too many parts, insane

[@adamrandall2996]

lol... nope... Check the price of an Oled today. Old tv never were more expensive than today's ones. It's always supply and demand.

[@WTM.23]

@@adamrandall2996 nope, in those days families used to have only one TV, now we have one per person

[@adamrandall2996]

@@WTM.23 liar.

[@spongebobsquarepants725]

@@adamrandall2996 your both right. TV's were always expensive and back in the day most people could only afford one TV.

[@joe6096]

They forgot to mention the 50,000 volt flyback transformer that plugs into the port on the tube where the anode button is.

[@raverewind]

50.000Volts? Are you drunk or what.

[@combycat]

@@raverewindit can actually be that high on a big tv set. Usually around 20-30000 volts on a normal sized set, small sets put out around 15000 volts though.

[@anilsharma-ev2my]

Gun assembly can provide ions or not ????? So we got ionization very cheaply or not ?

[@intel386DX]

they did not show how the glass is molded :( and this is only monochrome displays , what about color ones ?

[@pyeltd.5457]

It's molded like a varz

[@MultiMarvelGeek]

@@intel386DX Dude, thanks!

[@intel386DX]

@@MultiMarvelGeek you are welcome , pal ;)

[@Bk99JzM]

Witam i pozdrawiam!!Kompleksowa budowa kineskopu w zakladzie produkcyjnym,badanie pomiary i ustawienie jego parametrow to nie lada sztuka,trzeba duzej dokladnosci i cierpliwosci aby kineskop powstal i nadawal sie do uzytku!!Dobry pokaz Video!!

[@esk8jaimes]

5:06 Video ends and repeats

[@peterjameson321]

Very informative, I was enlightened by this video. I was grateful for the review without the incessant muzak at the end though.

[@Zooptopus27]

Insane how they figured out all of this stuff to make the CRT.

[@Twenteeeee]

Is plasma outdated now? I had a plasma TV it was pretty good but it had power cord issues at the last end there

[@tubingtuffus]

It might be "outdated" but it doesn't mean it's bad

[@jayn8392]

So cool. Shame crts have pretty much completely died. I collect and tinker with old arcade machines and it is getting tougher and tougher to find decent tubes for the monitors. You can hack up old tvs for the tube sometimes but even those are starting to dry up. You just can't beat these older displays for retro games

[@prepare2qualify111]

Try going to a recycling center, most of them let you take the TVs for free and they have literally hundreds of them. It's important to know where to look.

[@eddiepires3998]

Hi Jay, I too have a soft spot for arcade machines, I used to work in the industry repairing monitors , power supplies, boards etc. I can tell you that lunch time was always a lot of fun because the machines that we had repaired had to be ..er.. ahem ..tested :-D. The company I worked for closed so later I had my own business , I still have so much kit , tubes in good condition, some new even, power supplies by the box full , working monitor chassis, coin mechs etc. Sad , but one day I'll have to throw it all away, well recycle the electronics anyway.

[@FloppyDiskMaster]

@@prepare2qualify111 I've heard of those but there are none near me. It's sad, I have one big CRT and some small CRT monitors. The big one is failing and I want to replace it. It is also a late 90's / early 00's model, and I like the wood grain of the 70's ones.

[@prepare2qualify111]

Try putting up signs around your town "free CRT disposal" it sounds crazy or desperate, but that's a good way to find them. Certain goodwills/savers/Salvation Armies don't allow them but some still carry them. Try your local dump, if they allow visitors. There should be at least one recycling center somewhere near you (maybe a drive away but still there). Or, just try asking around. I'm sure some of your relatives or friends relatives should have some, usually older folks. Never pass up an opportunity to get one, if you see one on the side of the road then take it. I volunteer at my local recycling center and my dad has gotten to his limit and won't let me take any more home. It's heartbreaking to see all of these wood grain/retro/space age/potentially useful CRTs get processed into scrap and not be able to do anything about it. You could also check online. Don't use eBay as those are full of scalpers who charge too much. Try uncommon sites or craigslist, maybe try searching the net for individual people, many of them just want to get rid of them and don't want to pay to recycle them. They would charge practically nothing. I wish you luck in your searches!

[@prepare2qualify111]

Also I wouldn't through away your broken one, try to find someone who can fix them or try to learn yourself. You could also use it for parts to fix others. Good luck!

[@jubiladoatope]

This is so much more expensive to make than a modern TV, this is crazy.

[@mrcrtking]

Where is the shadow mask or apature grill if your Sony, its only monochrome tube in video, still cool thinking electrons are shot out from a cathode and accelerated to hit phosphor by 28 kv on most 21-37 inch crt tellys, got a CRT projector s going.

[@DasAntiNaziBroetchen]

It's a black and white CRT.

[@hangiegonzales6058]

wow im still here...2021....

[@nzoomed]

these sorts of CRT's are so old school, i really wonder how old this footage is, especially since its not a chinese factory!

[@tessafultz9828]

probaby from 2007, 2007 was the last year of the CRT.

[@Ailgadem]

@@tessafultz9828 nope, they were also being made after 2007 and in some countries they're still making them now.

[@josephstalin7995]

The intro implies that CRTs are still king, although plasma and LCD is common. Probably very early 2000s.

[@RamClaw]

I own an arcade machine made in 2007, it had a brand new crt in it.

[@gabrielvieira6529]

@@Ailgadem wow!

[@zer0b0t]

So those tv's don't have an aperture grille or shadow mask? Didn't notice when or if they installed it

[@24ecko]

I'm watching this on my tablet with an OLED display lol.

[@KokoroKatsura]

watching on my samsung syncmaster 950p

[@neokio5228]

@@KokoroKatsura CRT gang lul.

[@Tijuanabanana]

Im watching on my fridge

[@oron61]

Wish flat screens were usable at an angle. Only CRTs seem to be able to show things no matter what way you look at them.

[@Tijuanabanana]

@@oron61 get a good led screen that works

[@danielramirezcruz.2209]

Fantástic video l love it thanks l have 20 old tv sets in my garage and l love them never trow away...

[@apzkhan]

What a time, how technology has changed everything. Now LED change revolution in TV. World. Best regards.

[@marcuscarana9240]

This is the only How It's Made video where I see that the product isn't entirely made by machines. I 'm amazed at how many workers are still needed to do the work themselves.

[@YudaXD8K_]

I watch this after watch dr stone

[@EphemeralProductions]

I had no idea so much went into the making of an old fashioned TV

[@BALtimore2001]

How exactly are CRT bulbs molded??

[@clontstable1]

My dad refurbished TV Picture Tubes. I remember when he placed the tube on a lathe and installed the guns. I also remember when he placed them in the ovens.

[@Andrew-rc3vh]

I love the bit where the high voltage coating is attacked to the anode. I used to repair them and if i have fiddled correctly then the sign everything was fine was that short second where you hear the tube charge up and the sound of the static electricity. If it did that it would mean it has power to all the circuits and it was like hearing Hal come back to life and time to collect my fee. No static no fee, no finished job, no happy customer and so on. It was the ultimate sign of relief.

[@lobsterbox20]

And to think that for all of these years this labor intensive manufacturing process was cheaper than making an LCD. Wow!!

[@Metal-Possum]

Well, why should the newer and inferior technology be cheaper? They want people to buy it, so pricing it as expensive is a great way to fool consumers into desiring it.

[@pyeltd.5457]

Alex Paulsen inferior lol

[@thelight3112]

This is like late 1940s level of CRT manufacturing. In the later decades, there would be incredible advances in manufacturing of the tubes, allowing prices to come down. By the 1990s, they were mostly made by machines.

[@SenileOtaku]

This has to be a speciality shop making limited run tubes for specific replacement usage. An actual assembly line at the height of CRT usage wouldn't have had guys in lab coats and immaculate laboratory conditions.. This is more like watching someone currently making Nixie tubes by hand (which would have been an unworkable option when they were in wide scale usage).

[@Steve13121992]

One Thing forgot.. What's with the metal inside the tube?

[@panther105]

This has to be a repair facility. CRT factories would be making these on an assembly line by the thousands.....

[@jonathantan2469]

Probably a smaller factory that makes CRTs for niche nonconsumer electronics (laboratory equipment, factory machinery, ATM machines, defense, etc.)

[@GrayGhosting]

@@jonathantan2469 Yep, it was more automated.

[@drspastic]

@Blake Belladonna yeah i wasnt looking. no deflection plates. was looking at the green phosphor so maybe a computer terminal. we had a scope at college that size for teaching. it probably used coils instead of plates or it would have been huge long.

[@DasAntiNaziBroetchen]

Why do they attach the neck and then cut it instead of having it all in molded as one piece to begin with?

[@FreeScience]

Likely a more efficient (time/cost) manufacturing process.

[@SkipPlaysStrings]

Now I shall commence the revival of the CRT monitor

[@harryl6175]

Please do

[@Biospark88]

@@harryl6175 The retro gaming community needs you.

[@SomeDudeInBaltimore]

This is so awesome I gotta watch the whole thing again without soun...WELL HEY THERE WE GO, SWEET.

[@jovetj]

Certainly brings a whole new meaning to "you tube" ...

[@splorpmguffins6052]

Not really, you tube was named because instead of watching the tube (meaning a crt monitor or tv) YOU would tube. KZbin.

[@darkflux]

why did you play the video twice, second time with no audio?

[@BigEightiesNewWave]

So labor intensive !!!

[@bob4analog]

And that's not a bad thing.

[@sethhorst6158]

It was worst when CRT was new, because the newer a technology is, the harder it is to get use to it, and before you know it, as soon as you're used to a technology, it immediately is outdated and replaced.

[@noop9k]

Remember that back then a BW TV would have dozens of vacuum lamps made with similar methods.

[@jskratnyarlathotep8411]

@@bob4analog manual work is so unprecise, slow and expensive, why're you saying it is not a bad thing? robots are so much better at precise repetitive tasks

[@bob4analog]

@@jskratnyarlathotep8411 - And why didn't you use a robot to build your circuit here? ---》 kzbin.info/www/bejne/e368i5uthZyln9E

[@jamesb.9155]

Would love to know to whom belongs her lovely voice . . .

[@b1ff]

Yep, old-school TVs used to have guns in them, often aimed in the general direction of the viewer.

[@jonahkamendi9351]

And which ather way this screen can be used for exccept creating images

[@josephstalin7995]

Thanks, now I can feel like a boomer without the back pains!

[@commandertaco1762]

It's okay papa stalin

[@lux-vacui]

Very interesting. But how are the tubes molded in the first place?

[@fluffymacaw933]

I really wish they still made these tv’s

[@Helloyousilverdevil]

The weirdest part about CRT tech (and a lot of old analog tech) is how much more complicated it really is down at the basic componentry and mechanics. Like, LCDs and the pixels that have to be manipulated in them, the fundamentals make sense. Cool, got some RGB sub-pixels deflecting light from a backlight source at different levels off an excited liquid crystal layer that combine to form one single color to the human eye. Crazy, but you can wrap your head around it. But a freaking ray gun, set in a vacuum tube and offset hundreds of thousands of times per second over a general area of horizontal lines with magnets, just… my god. Watching that amazing video of the Slomo guys looking at how Mario gets refreshed on a CRT is just, like, na man. Too much. Too much tech. Yet we look back and it’s apparently the most primitive form of moving picture technology. I’ve always been obsessed with display tech and have a pretty cool collection of gizmos i build myself that use everything from Nixies to VFDs to LCDs to LEDs to OLEDs to Plasmas to blabla… but CRTs take the cake for “brain exploding imperfect analog concepts somehow mastered to be reproducible at scale”

[@42luke93]

I couldn’t even do step 1 in my house, thank god for these people!

[@pipcopur]

How many getters in that gun assembly!? High quality item.

[@DuwangKaizer]

I hope this will make a certain individual learn how to make a 4K CRT

[@martinschroederglst]

These monochrome tubes have, in fact, nearly infinite resolution (only limited by the size of the phosphorus molecules and the diameter of the electron ray). There are no pixels.

[@SafetyLucas]

@@martinschroederglst Yeah it's sort of like film. There's no resolution, only grain size.

[@namenandern5531]

@@martinschroederglst couldnt you theoretically use a rgb color filter that uses the persistence of the image in the human brain like a dlp projector for example?

[@aKuBiKu]

@@namenandern5531 kzbin.info/www/bejne/sF7UaZier62Yh7M ;)

[@namenandern5531]

@@aKuBiKu this propably lingered subconsciously in my mind

[@MagnetOnlyMotors]

No sound half way through….

[@peterjameson321]

Thank heavens!

[@theshake5378]

Back when I was very young ,, was always wondering how they fit small human beings into a TV set ,, now I know !!!!

[@XYZB0RG]

child workers from china, that's what

[@LeicaM11]

CRT ever had 480i? I have never ever heard of this. I just always wondered, why VGA on a PC or later DVD only had this low resolution, when decades before. the rest of the world already used 720x536i. DVD often has this becut resolution too

[@leminuteur1770]

" 536i " doesn't exist . 480 × 30 is the same as 576 × 25 . This is 576i .

[@MrJaaaaake]

I wish there was still a place to get these. Much better color quality and LED destroys your eyes,.

[@Cuchogameplay]

Se puede jugar Minecraft en esa tv ?

[@mgabrielle2343]

What they did not tell you, the thickness of glass has to be very thick and strong along the front screen part, CRT tubes are subjected to a very high pressure from the outside, as the tube has total vacuum, i.e. all the air is extracted by a powerful pump, there is no air left in them, so now you can work it out how much of the atmospheric pressure is acting on the front portion of the screen, a 25" diagonal CRT screen which roughly means approximately 20" x 15" rectangular screen occupies a surface area of 300 square inches, each square inch is subjected to atmospheric pressure of roughly 15 lbs (pounds) per square inch, so total pressure acting on that screen is 4500 lbs! that is approximately 2000 kilograms that in itself fascinates me. And don't forget the screen has to also take a lot of abuse as many people thump the poor thing when watching a programe that turns out disappointing, like if you were watching football, and your favourite team lost, you would probably punch the screen! And the other fact is we cannot see electrons, yet we have a mini hadron collider in the tube, where we emit tiny unseen particles, called electrons towards the screen and strike a phosphorus coating that emits a light when struck by electrons, and thereby prove that electrons exists, and that they can be boiled off a negatively charged cathode and accelerated to near enough speed of light and strike the screen, where energy is given off, if we were able to set up sensors all around the tube inside, we would have been able to detect many other particles given off when electrons strike the phosphorus screen, we would have been able to detect Higgs Boson, without having had to spend 2 billion Euros building that big particle accelerator, all that could have been done inside a CRT, probably your smart phone camera can capture higgs bosons emitted by your old 26" CRT TV. And don't forget using 10 to 15KV volts anode voltage, you would have been subjected to a fair amount of X-rays being emitted off as well, but these days we are exposed to a lot of Microwaves as most iphones now work on Microwave frequencies of 2Ghz or more, that is the same frequency our Microwave oven uses to cook food, though the doze we get is a lot weaker, but over a long period of time our brains are being slowly defrosted. But remember biggest revolution in science came from a bull, we first used a bull to use its mechanical energy, to run mills, do the farming, mine the minerals, drive bull carts, enable man to invent millions of other things so all started by a bull, we owe it to a bull, animals must be respected.

[@BGTech1]

Thanks for the information

[@maudiojunky]

"we would have been able to detect Higgs Boson, without having had to spend 2 billion Euros building that big particle accelerator, all that could have been done inside a CRT, probably your smart phone camera can capture higgs bosons emitted by your old 26" CRT TV" I don't know what you're smoking, but the particles in the Large Hadron Collider are 10,000,000,000 times more energetic than in a CRT electron gun.

[@BGTech1]

Seeing as the tube is a different shape compared to other tubes I’m pretty sure it’s for specialty use. Plus crt where already obsolete when this episode came out

[@user-tr2dh4xx6u]

Wow the evaporated aluminum is cool af. I will try a similar experiment using a vacuum chamber

[@wictimovgovonca320]

Same process is used to make mirrors.

[@malveezy]

I like the way they look, I managed to fit an LCD screen inside a CRT I found on the side of the road. Smashed out the back of the tube and it fitted right in.

[@stevedelaminecraft4175]

why....

[@Opelvectra1]

@@stevedelaminecraft4175 1st sentence .

[@Asteroid_Jam]

I wish they did not discontinue CRT Tv production

[@19seventy97]

Me too, or at least re-gunning them. Though i think there are still people who do that.

[@tayro7265]

@@19seventy97 America ships old tv's to India. They rebuild them for sale anywhere but the US. Here's a trivia tidbit for you. You now how flat screens have a resolution quality rating? Do you know the resolution of a CRT? .etinifnI

[@19seventy97]

That could come in handy, I have a small but growing CRT collection and would need re-gunning in the future (if used often) perhaps I could get them regunned if needed in the future. CRTs are either 405 line (Black and white 1960s and before sets) or 625 line - black and white aswell as colour, but I think that they would be 480

[@slapshotjack9806]

Why then the environment would be in worse condition and technology like video games would not advance

[@19seventy97]

The environment wouldn't really be in a worse condition, they'd make the same amount of waste a LCD would. Plus we don't need video games to be ultra-realistic and suck all the time out of our lives. I've actually played my XBOX One on a 1970s CRT and it's easily do-able. Plus, if they were still in production, CRTs could easily progress to give a better picture. HD CRTs exist. The only draw back to CRTs really is their size - but even then most TVs (if not on a wall) are in a corner where a CRT would go easily.

[@MrSerendipity01]

If this was a black & white tube how come it lit up green at the end?

[@jaymorpheus11]

MrSerendipity01 its a conspiracy!!!

[@MrSerendipity01]

@@jaymorpheus11 🤣🤣🤣🤣

[@main2579]

Looks like this one with green light is for some technical device like oscilloscope or something

[@tiberiu_nicolae]

4:44 Workers use a magic wand to instill the moving images in the tube.

[@tonyd6853]

Can you turn one of these into an electron scanning microscope?

[@roberthorwat6747]

In the UK, Tony Hirst is the voice of How It's Made. Much prefer his style over this lady.

[@19seventy97]

He's the voice of pretty much anything technology related now!

[@johneygd]

Technology is related to men’s, not woman’s = fact!!!

[@roberthorwat6747]

@@johneygd I was on the bus once, and Grace Hopper sat next to me and started giving me grief "I invented computer programming you know" and off she went. Couldn't shut her up "COBOL this" and "FORTRAN that" and "none of this C++ nonsense". Luckily for me Marie Curie got on with Hedy Lamarr, they could see my predicament and told me the bus driver wanted to check my ticket, which was a lie to prise me away from Hopper's infuriating computer speak. Hedy and Marie asked me to sit with them and ask me what I thought of their Radium powered torpedo. I pointed out a few flaws in their plans and said "if only we had some kind of liquid as white as paper that could be painted over these errors. A voice from behind suddenly said, "sorry I couldn't help overhearing, I am Bette Nesmith Graham and I have just invented the very thing you need. It's called liquid paper and I just happen to have a bottle, here have some". Unfortunately some guy stole their entire research budget and spent the money on diesel powered nuns. They were a disaster and he died penniless. I may possibly have made some or even all of this nonsense up.

[@pyeltd.5457]

So relaxing. Remind me of watching him in 2008 when sick on the sofa lol

[@pyeltd.5457]

johneygd sexism

[@dhruvparmar4061]

What's the use of that black dye?

[@Nikola95inYT]

So the electricity can pass into

[@liagitado_0294]

I remember playing nes game in these kind of tv. Though some time our tv colour changed from normal to rainbow colour and then complete green.

[@ChozoSR388]

Sounds like something was getting ready to give up the ghost lol

[@anilsharma-ev2my]

Cathode ray and x Ray are same or not. ??? Are electron gun produced some ions which can ionization of air so all the effect of sanitation become easy ????? For viruses and fungus ????

[@6___________99_____________64]

I wonder how many of those workers suffered hydrofluoric acid burns

[@ntal5859]

None they are all dead before the burn. Nothing is going to stop that stuff.

[@wannabeetiger]

Is the cathode ray similar to an x-ray???

[@rostyc]

Yes

[@punker4Real]

Watching on a OLED screen :) LCD/plasma that is like 1985 tech as seen on BTTF

IPS

[@pyeltd.5457]

My QLED TV is from 1956

[@AtrixRBX]

On my way! On my way! On my way! On my way! On my way! On my way! On my way! On my way! On my way!

[@ddorfpunk]

the Best flatscreens are the ones Never build. CRT FTW!!

[@newspooiechannel]

I have a Flatscreen CRT. It's from 2004/2005 or so. Panasonic and Component Inputs!

[@teresashinkansen9402]

No the best CRTs are the ones never built. Mechanical TVs FTW!

[@whatevernamegoeshere3644]

@@teresashinkansen9402 mechanical TV just ruins the attention span. Slideshows for the win!

[@punker4Real]

@@newspooiechannel my old HD CRT has HDMI port for PLAYSTATION 4 :D you can rock XBOX one or Playstation 4 on a REAL HD CRT with HDMI port v1.0 it has a slight geometry issues but SONY got lazy at the end BUT not noticeable I had another one that had Perfect Geometry but my shit face uncle got rid of it

[@ModMokkaMatti]

The best CRTs are those never made in far-eastern slave nations.

[@jackmcslay]

Anyone knows what are these CRTs used for? They look ridiculously long for TVs and are apparently monochrome

[@GrayGhosting]

Computer Monitor Displays

[@Drozerix]

I wish there was a step by step on how to make this yourself -- this video glosses over a lot of information. I really want to make my own color CRT. If anyone knows of a good source of knowledge on this subject I'd love to know about it!

[@tonystarkunlimited7332]

I doubt you can make this at home.

[@Drozerix]

@@tonystarkunlimited7332 considering people these days are making sophisticated ICs at home, I beg to differ.

[@alyx4436]

KEKW

[@niclaskrause7717]

The equipment is gonna cost you hundreds of thousands of dollars. Just blowing the glass bulb is extremely difficult. Also, please study electrical engineering first, otherwise the voltage will kill you. And if you really want to proceed, go ahead and study material science. The guys making ICs are extremely skilled and advanced in their field. You will have to do some years at university first.

[@Drozerix]

​@@niclaskrause7717 I have a BS and an MS in CS and I was originally a COEN; however, I may pursue another MS in EE just because I find it interesting. Also I did email a few professors and I did read several patents related to color CRT manufacturing since I posted this comment. There is certainly a lot and I can't cover it all in a comment here. In summation, there are 3 main parts of a CRT: The electron gun(s), the defection system, and the screen -- and yes -- the bulb manufacturing is involved. Firstly the shape of the bulb is critical if no reinforcements are used. The glass typically is not "blown"; rather, it's cast in a mold. In the early days these TVs would implode if improperly made -- mortally inuring those within proximity if it held a large vacuum and was not sealed behind a container. Older color TVs had made the glass bulb in two parts -- the funnel and the screen (front face). This made it easier to imprint the phosphor patterns and attach the mask. The key here is to have the right shadow mask -- made of the right material to avoid thermal expansion problems. The process for manufacturing the mask is a bit complex involving chemical etching. One patent I read talked about improving this process to avoid an overly skewed cone shaped etch for the dots. For the glass, the shadow mask itself, in some cases, is used to make the phosphor imprints through photolithography (a bit similar to the mask manufacturing in principle, although there are significant nuances here). That said there are other methods for making these imprints. Also, the glass itself isn't regular glass. In some cases it's lead glass and is quite thick. In addition to this, other coating may be applied to the interior of the bulb to add various benefits... I could go on in great deal about this subject. All in all, it certainly is a lot of work, but I seriously doubt it would cost "hundreds of thousands of dollars" in equipment. You can custom make your own oil diffusion vacuum pump, glass oven, rotating torch, etc. Maybe for mass producing high-end, large color TVs that use an aperture grille, then yes it will cost a lot. But for older more primitive color CRTs a lot of the building can be (and was) done by hand. In fact there is a video on YT showing this for oscilloscopes. For instance, it showed the techs making the electron gun by hand using jigs.

[@sanjeewikagunasakara6817]

A flow of electrons make a current right is this current a electrical current since if so such current is imposible since it donot passes through a vacuum so is that a different thing

[@LordGryllwotth]

Think about those small crt screens that was used on video cameras!

[@Gkokkinakis2]

The same but way smaller

[@Gkokkinakis2]

And more automated

[@RayRayGaming-xb3pz]

I managed to take one of those out of an old jvc camera, and got it to accept composite video via an rca cable.

[@stevesje71]

Where can I get a CD of the music in this video?

[@johneygd]

I wish they also showed how a crt undergoes many tests before it rolls out of the factory,

[@pyeltd.5457]

They did in a LG plant.

[@RaisedBySheeps]

there's no audio for the last third of the video

[@muhammedjaved786]

I can finally put this behind me glad I found out how this is made in 2019. When the world has moved on to OLED’s.

[@binodtharu6071]

My curved OLED display is better

[@smokeintheair]

@@binodtharu6071 not better than a fw900

[@enoz.j3506]

Wow that was interesting,i never knew hor crt's were made,so labour intensive.Thank you.

[@pacman7654]

2:13 mind blown. how do they come up with his stuff...

[@RolandThePaladin1]

By trying to figure out how to get a very thin and uniform coating on a surface. Vacuum deposition is a technique used all over the electronics industry.

[@viscountalpha]

I believe vacuum tubes had quite a bit to do with it. Someone just had an invention they wanted to make one day and it was the CRT.

[@MemeReviewer]

2:13

[@Dasan1111]

0:58 Human is contacting hydrofluoric acid? Is this possible?

[@steveone]

I wouldnt want to work anywhere near hydrofluoric acid .

[@dirtrusty7228]

I hear that Keith Richards uses it as mouthwash.

[@arricat5e311]

Why not?

[@africanelectron751]

@@arricat5e311 Google hydrofluoric acid burns...

[@koosnaamloos]

African Electron thats some nasty shit

[@heythere5849]

2020...yah KZbin...very helpful at 2.AM

[@bob4analog]

Maybe I missed someting, but.. at 5:05, they show the video over again.

[@7xr1e20ln8]

Yeah only this time, without audio.

[@tobias3481]

(How to stretch to 10 minutes)

[@tacoengineer6660]

Yup to stretch it to 10 minutes lol

[@themrenerd7384]

But the thing is it was uploaded in 2011, monetization wasn't even a thing back then?

[@TorutheRedFox]

it was a thing since 2009

[@robertjonasson2527]

Vacuum tube transmitters and receivers are not affected by electromagnetic pulses.