How its made - Cathode Ray Tubes (CRT)

[itsmewillempy]

@raylyd only crt and plasma caused burn in image because phosphor is in it .a lcd has liquid crystal pixels and dont light up . lcd need a fluorescence tube to light up the pixel .

[BigSneakySnake]

CRT's have much more acurate colors and black levels than any LCD tv, anywhere. Only the best of the best of LED or Plasma Tv's can compete with CRT's in that respect (although, not very many crt's were above 1080i)

[itakeyourphoto]

All this work and now its just land fill...

[TheSpySapper]

Holy shit, Hydrofluoric acid. that shits dangerous

[MrSheissen1]

@TheSpySapper Yes indeedy, but not if you throw it in the local river though.

[MetalTiger88]

holy crap, how do you invent stuff like that or even build it? =D

[raylyd]

LCD has dead pixels and burn in image as for crt dont do that as much plus with crt for classic games are much nicer.

[Bracerjack]

This....is all....so...manual!

[Topachula]

Why are they actually still produced? Doesn't make a lot of sense to me. Producing LCDs is much easier and cheaper than producing these outdated 1980's technology CRTs (altough the CRT itself was invented much earlier). Not even modern O'scopes use them anymore.

[Serostern]

@Topachula There is obviously a market for them.

Vacuum tubes are still being made.

[lbochtler]

@Topachula actualy they still do, only DSO's or digital storig oscillascops use LCD's, but the resalution on the LCD's isnt as good as on the CTS's. at least thats what i have seen on my scopes.

[voon100]

So much work goes into making these. No wonder black people likes to steal TV.

[Serostern]

@voon100 The tube is generally what you DON'T want.

[MrSheissen1]

@voon100 Bravo!

[RavenRof]

Starts with bulb making, bulb painting, vaccum and baking and then, sorcery.

[SuperToadTV]

werden die heutzutage noch hergestellt?

[lbochtler]

@SuperToadTV ja

[andrewsmyname]

woah all this effort into just 1 crt yet now they sell for £2.50 :')

[lexichronicle2]

These are stored in vast bags underground as hazardous waste by my local council.

[Vnix]

CRTs, causing nearsighted blindness since 1879

[cmd2tuts]

Meh, this will never catch on.

[Luffa9876]

thank you!!!

now i know how that stuff werks!!

[leonjohansen]

1879



[LectronCircuits]

Excellent. We should use more CRT's, adapting every possible appliance & device for their use. How about CRT cell phones? Awesome!

[donyunger]

Ah - Just monochrome CRT. I was wanting to see how put in the RBG phosphors on the inter tube face in such a precise manner, as well as the shadow mask

[Neverdweller]

awesome

[ErnieHam]

i still don't get how it works LOL.

[Gunner3210]

@ErnieHam Why? It is so easy. There is an electron gun at the back that emits electrons. The electro magnets around the middle of the tube then accelerate the electrons into a thin beam. The magnets also guide the beam so that it scans on the surface of the CRT. The surface is coated with a material that lights up when electrons hit it. This is the light you see.

[HappyDiscoDeath]

@ErnieHam a trio of electron guns (red, green, blue) at the back shoot at the phosphor coating on the front in a sweeping motion and various combinations to produce an image or video, accelerated by high voltage from the flyback transformer, which is connected by a clip to the top of the CRT. a coil towards the back keeps the electron beams in alignment so they won't shoot off in random directions. Nerdage \w/

[hellomang100]

i would buy one of thoes tv,s.

[AsianLuigi]

lol the person who was making the gun was shaking alot . I want a electron gun sounds so cool thumbs up if you think so too!!!!

[iToasterman]

@AsianLuigi you dont, 1 hard to power / controll, 2 can be deadly, 3. no, 4. not the way you think it works.. what you want is the flyback trasnformer..

[bestamerica]

'

what is that white liquid pour in a CRT for

[computersmasher]

@bestamerica the phosphorus that glow when hit with an electrode and produces the picture

[bestamerica]

computersmasher,

'

okay thank explain,,,

now NO more CRT on tv,,,

it is new tv without a CRT

[AFreakinProblem]

Wish they still made 2048 X 1536 Trinitron displays and 1080i widescreen CRT TVs.

[ismaelkhan]

@AFreakinProblem closes't thing is the SONY TRINITRON GDM-FW900

[killallianceftw]

Doesn't hydroflouric acid dissolve glass?

[Serostern]

@killallianceftw Nope.

[iwork925]

@killallianceftw

Surprisingly no. Hydroflouric is sometimes shipped in glass bottles. Although it is most likely found in plastic containers for safety reasons.

[crocodile2006]

Yes they still make CRT's, mainly for security camera systems which still are mainly analogue outputs which LCD's don't do very well.

[mjojo1000]

are crt tubes still being made

[gtaer222]

@mjojo1000 CRT's are still made but only TV

[TheNewFormula]

@gtaer222 No, thy don't make any CRT TVs. The only CRTs they make today is for instruments for technical labs etc.

[gtaer222]

@TheNewFormula Well in the neterlands(where i live) there are still for sale

Brand new ones

[HiddenAbilities]

@gtaer222 Yeah, matter of fact, although you don't see much here in Florida USA, they are still making some. There's a prototype or something that has a REALLY REALLY high contrast ratio, and makes 480P look PERFECT xD

[GrantLogan2]

that was only a black and white crt

[TheNewFormula]

@GrantLogan2 No, it was indeed a monochrome one, but not black and white, as you see at the end it is a black and green.