1. I know of (in UK) of someone killed by CRT glass. He was working alone late Friday night and his body wasn't discovered until Monday morning, in the zone where CRTs were thrown. 2. CRT glass is so sharp that you don't feel it cut through you. I lost part of thumb just brushing against a shard, I didn't feel it and the first knew was feeling something dangling on my hand. Then a few seconds later was blood. 3. CRTs are easily rendered safe by pulling off the plastic connector to expose the nipple which you then tap with a screwdriver handle to slowly release the vacuum.
@@combycat8 months off but still worth a reply. The nipple is the tiny glass part of an electron/vacuum tube that where the vacuum is drawn and then sealed off (on the tops of most commercial tubes, on the bottoms/backs where the connectors are of others). Sometimes it can appear flat on the surface (usually on CRT's because of the connector board) but otherwise appears rounded on most other vac-tubes. If that is ever broken, it always means that the tube can no longer be used.
It hurts watching these tubes be destroyed, especially the 564 because I have one of those, but they look like they were factory rejects or were already subjected to previous testing judging by the burn-in on some of them.
I had to part out a 564(a), but still have the CRT. It has no burns, and was working in the unit maybe 20 years ago, stored carefully since then. If you're interested you may have it for the cost of shipping, or pick up in the Wichita KS area for free. Let me know,
@Peepee Poopoo Back then that was a new tech and really really common. Now find these old tech today and sell it to thousands of dollars, and you will see why it's not recommended to destroy old tech.
The only scope CRTs I ever replaced were burnt out from constant use over many decades! I still use old analog scopes for repair of many electronic devises, as the digital scopes don't show the proper display when aligning certain circuits. As old as the analog scopes are, they hold their calibration very well! And I don't worry about the CRTs imploding, as they are inside their cabinet and well protected!
Fairly recently, 2016 I believe, we had to perform implosion testing on our CRT for UL certification. CRT's are AWESOME! Last generation of CRT engineers still making tubes. 42yrs of service.
Now thats an uncommon sight ! Would you mind telling me some more ? what company if it even is one and are any crt tubes available for sale to public? what types do you make ? I thought crt manufacturing died for good ! Thank you in advance
I serviced, repaired and calibrated about every Tektronix O-Scope ever made with a CRT. The instruments were used by techs and engineers in the field and on test benches. I never saw a broken CRT but had there been, the scope would have gone to the next highest standards lab for disposal of broken glass, replacement of the CRT then back to our shop for calibration. The good ole days!
Interesante! hay mucho conocimiento acumulado en esos años de servicio, habla español ? hay muy poco contenido de calidad referente al tema disponible en youtube en español
When I was a teenager my friends and I came across a large discarded TV in a dump. I hit the front of the screen several times with a tire tool, but, luckily, I did not break the tube. One of us got the bright idea to make a competition of it and stand back about 20 feet, taking turns to throw the tire iron at the tube. I was the first to throw, and hit the CRT dead center. I could not believe the shock wave we felt from the explosion following the implosion. I don’t think there was a piece of glass larger than one-have inch across remaining. We were just outside the blast radius but could see the cloud of glass shrapnel. I’ve been careful around CRTs ever since. Later in life, as a SEM field technician, I learned the proper way to dispose of a CRT. We would use a jeweler’s file to cut through the glass on the nipple at the back of the tube to safely release the vacuum. For anyone who is skeptical about this see: ruclips.net/video/Qv-Ub7kgm0Y/видео.html
Was dismantling a old console in the late 90s to dispose of the CRT we had the bright idea to toss it over the creek bank aiming for a large cement storm sewer clean out ,, well we hit the mark and we sprinted inside cause at like 1am it sounded like the whole south end of town exploded, as dumb kids we never tried that sort of stunt again,
The description in the video makes it sound like something done for fun, but the reasonably elaborate setup, very similar to how UL performed CRT tests, and the very expensive high frame rate film, makes me quite confident this was done for some kind of research or legal purposes. For example, studying the failure modes in order to make future tubes safer.
Friday afternoon at the Tek office, 1963: Hank: "Hey Bob, remember that pile of junk CRT's we have lying around? Want to have some fun and smash them?" Bob: "Sure, great idea, but we're on company time, we really need a good excuse." Hank: "Hold my beer, Bob."
Back in the day, we had a console TV CRT implode due to thermal shock. Luckily, there was plate glass cover in front of the tube. It was a youthful experience not forgotten.
As a kid learning about electronics in the 60s I had always heard that a CRT would implode then explode. Interesting to actually see the effect in action. I'm surprised to see how thick the glass is.
When I was a teenager I made a game of the old TV tubes my dad left out for the garbage collector. The trick was to hit the rear of the tube(around the top of the neck) with the handle of a big screwdriver in just the right way as to make as small of a hole as possible. So that the sucking in air sound would be as long as possible. Taking out the whole neck with one hit at the side of the neck was also fun. The whole neck would immediately dislodge and be sucked inside
To give you an idea of how dangerous CRTs can be, if handled improperly, a friend, who is a retired television station technician, told me how a co-worker was carrying a removed CRT, with the faceplate against his chest, and he'd forgotten to don his leather apron. He tripped over a box, and fell forward. The neck of the tube hit the floor first, and was then broken, and shot through the faceplate, into the technician's heart by the force of the vacuum being released, and the surrounding atmosphere ramming the neck of the tube inward. I am so relieved to know I've finally gotten rid of the glass bombs that once surrounded me in my edit suite.
@@imark7777777 I think you meant to comment on a horror film, or some other video. This only had to do with a cathode ray tube test to fail. And, no, the guy died on the spot.
A family back in the 50s came close to death when the CRT in their TV imploded, sending shrapnel into the couch and through the wall into the kitchen behind it. That family was lucky they weren't there watching TV when it happened. There would be a seperate panel of saftey glass in front of the tube if it wasn't bonded directly to it and/or an implosion band. For some reason either of these features failed or were not present.
In the 1970's I used to take apart TVs for the parts. Having a left over 27" tube and being a teen, we of course sat it out in a field and started chucking rocks at it. Took a while but we were eventually rewarded with a good "Thump!" as a rock hit and it imploded. Yeah, kids, don't be too near if you do that!
my first computer tech, i say that instead of PC tech b/c was working on a mid-range computer system as a civilian for the Army. Whenever we got a bad CRT. Me and the other tech would through it in the dumpster then climb up on the side of the dumpster and throw stuff at the CRT till it exploded. This was in 1985
And the boss seen sure you can use the good equipment and the good cameras and five other staff members. Yeah they might not have asked although they would've had to get ALLLLLLLLL the film developed.
seems to be more damage from the implosion than the impact, interesting, bet they had fun doing this, wonder who drew short stick and had to clean up all the shards of glass?
May I use part of this video in my upcoming Star Wars prop video? I will be using a CRT tv, and felt it was important to cover the safety aspect visually (but not exploding one myself) Of course I would credit and link your channel and video. Thank you for your consideration
Back in the day CRT's were essentially bombs waiting to go off. Thankfully through research and development, they were eventually made safer to where the implosion wasn't nearly as bad as it originally was.
Thermonic implosions, would of liked to have seen some bigger ones destroyed. I have imploded some 22 and above CRT's but didn't get them on record, pity i guess.
Definitely not an activity to be done for fun or entertainment. It's our responsibility to preserve every available CRT at this point, since no more are being made.
I have broken many of these before in my life and all the time I would always see the same thing. No gas release only air intake. Although some of the inert gas inside of that vacuum tube is released after the implosion
This video is awesome, everything from the results to the fact it's three guys hiding behind a partition wall in the corner of their office. 👌 ps. you can't release a vacuum 😉
This probably isn’t accurate so take it with a grain of salt but let’s say your roll of 35mm movie film is 400ft and there’s 16 frames per foot as standard according to Wikipedia so that’s about 6400 frames at your disposal. Using todays prices which are obviously inaccurate to the time 1.6 seconds of footage is about £300 but either way would’ve been very expensive.
The camera uses a standard 100 feet spool (30.48 m) double perf 16 mm film and a powerful motor to ensure a fast acceleration. The film is running continuously, because the camera has no shutter, just a rotating mirror or prism. The used film stock and development was not very expensive.
Around 30 years ago we found a long neck 19" TV tube without the metal safety band. We threw a rock at it and it went like a bomb. The furthest piece landed in a car park around 150 feet away and was over a pound heavy. We were very very very lucky not to be hurt!
It's because they are so small ones. Bigger ones make more impressive, because the screen size affects the volume in all three dimensions, so increase in screen size increases the volume - and the vacuum making the implosion - exponentially.
@@samholdsworth420 Never...... As long as stoneage gamer, analogue, Castle mania games, iam8bit, limited run, strictly limited, retrorgb, N64 digital, super rare games, etc., etc., etc., etc...........are still around I will continue to enjoy my past. Obviously it ain't going away anytime soon, It is what it is.
@@bob4analog The electrons won't have phosphere as a friend anymore,mind you,the electrons werent the best of friends, as they hit phosphere many times over the years.Thats depressing.
this isn't the slowmoguys, this is the slow motion picture gentlemen
Underrated comment
Lmao
them in their past lives maybe
1. I know of (in UK) of someone killed by CRT glass. He was working alone late Friday night and his body wasn't discovered until Monday morning, in the zone where CRTs were thrown.
2. CRT glass is so sharp that you don't feel it cut through you. I lost part of thumb just brushing against a shard, I didn't feel it and the first knew was feeling something dangling on my hand. Then a few seconds later was blood.
3. CRTs are easily rendered safe by pulling off the plastic connector to expose the nipple which you then tap with a screwdriver handle to slowly release the vacuum.
Cool to know!!
Even worse were cheap old soviet TVs which were held under pressure, meaning they exploded, sometimes randomly (!!)
that was gross! yay!
...what's the nipple btw?
during manufacture it is where the attach the high vacuum pump for removing the air. All light bulbs and fluorescent tubes have this too @@combycat
@@combycat8 months off but still worth a reply. The nipple is the tiny glass part of an electron/vacuum tube that where the vacuum is drawn and then sealed off (on the tops of most commercial tubes, on the bottoms/backs where the connectors are of others). Sometimes it can appear flat on the surface (usually on CRT's because of the connector board) but otherwise appears rounded on most other vac-tubes. If that is ever broken, it always means that the tube can no longer be used.
It hurts watching these tubes be destroyed, especially the 564 because I have one of those, but they look like they were factory rejects or were already subjected to previous testing judging by the burn-in on some of them.
I'd rather have these be destroyed when they hadnt yet left the factory, than to have an antique be smashed right now
I had to part out a 564(a), but still have the CRT. It has no burns, and was working in the unit maybe 20 years ago, stored carefully since then. If you're interested you may have it for the cost of shipping, or pick up in the Wichita KS area for free. Let me know,
@@stirlingschmidt6325 Shame you had to part it out. Do you have any other pieces of the scope? I am interested in the CRT.
@Peepee Poopoo Back then that was a new tech and really really common. Now find these old tech today and sell it to thousands of dollars, and you will see why it's not recommended to destroy old tech.
CRT's could end up being the antique "VAHZZE" of the future.
The only scope CRTs I ever replaced were burnt out from constant use over many decades!
I still use old analog scopes for repair of many electronic devises, as the digital scopes don't show the proper display when aligning certain circuits.
As old as the analog scopes are, they hold their calibration very well! And I don't worry about the CRTs imploding, as they are inside their cabinet and well protected!
I didn't even know that high speed recording was a thing in the 60s! Pretty awesome stuff!
It was done as early as the 1930s, and became more common before WW2.
You didn't "no"?
all they had to do was run the film through the camera faster then play back at a slower frame rate
@@BenjaminGoose OMG It was 5 AM when I wrote that! I was half asleep! 🤣🤣🤣🤣
@@patrik_x86 Yes, but I had no idea that technique was used such a long time ago.
Fairly recently, 2016 I believe, we had to perform implosion testing on our CRT for UL certification.
CRT's are AWESOME! Last generation of CRT engineers still making tubes. 42yrs of service.
Now thats an uncommon sight ! Would you mind telling me some more ? what company if it even is one and are any crt tubes available for sale to public? what types do you make ? I thought crt manufacturing died for good ! Thank you in advance
@@MrDsmen Just get a plasma TV plasma is just as good as a CRT
@@theantiveganchannel3596 That really wasnt the point of my questions.
@@MrDsmen i know I got a nice SONY CRT TV that is HD widescreen with a single HDMI port, you can't go wrong
I serviced, repaired and calibrated about every Tektronix O-Scope ever made with a CRT. The instruments were used by techs and engineers in the field and on test benches. I never saw a broken CRT but had there been, the scope would have gone to the next highest standards lab for disposal of broken glass, replacement of the CRT then back to our shop for calibration. The good ole days!
Interesante! hay mucho conocimiento acumulado en esos años de servicio, habla español ? hay muy poco contenido de calidad referente al tema disponible en youtube en español
When I was a teenager my friends and I came across a large discarded TV in a dump. I hit the front of the screen several times with a tire tool, but, luckily, I did not break the tube. One of us got the bright idea to make a competition of it and stand back about 20 feet, taking turns to throw the tire iron at the tube. I was the first to throw, and hit the CRT dead center. I could not believe the shock wave we felt from the explosion following the implosion. I don’t think there was a piece of glass larger than one-have inch across remaining. We were just outside the blast radius but could see the cloud of glass shrapnel. I’ve been careful around CRTs ever since. Later in life, as a SEM field technician, I learned the proper way to dispose of a CRT. We would use a jeweler’s file to cut through the glass on the nipple at the back of the tube to safely release the vacuum.
For anyone who is skeptical about this see: ruclips.net/video/Qv-Ub7kgm0Y/видео.html
Was dismantling a old console in the late 90s to dispose of the CRT we had the bright idea to toss it over the creek bank aiming for a large cement storm sewer clean out ,, well we hit the mark and we sprinted inside cause at like 1am it sounded like the whole south end of town exploded, as dumb kids we never tried that sort of stunt again,
I've bricked a fair few TVs over the years and never gave it a second thought😄👍
Damn i have one of those in the woods my house. Im gonna go throw rocks at the screen.
We used to hammer a sharp pick (like an ice pick) through the HV anode to break the seal.
@@who_cares848 please leave it at the proper waste managment instead
The description in the video makes it sound like something done for fun, but the reasonably elaborate setup, very similar to how UL performed CRT tests, and the very expensive high frame rate film, makes me quite confident this was done for some kind of research or legal purposes. For example, studying the failure modes in order to make future tubes safer.
Damn, SloMoGuys really got better with age
hashsha
@@juango500 LMAO
It's surprising to see just how fast the screen is sucked in by the vacuum / pushed in by the atmosphere.
Just think, the stuff going in is going super fast but feels no wind resistance because it's going into vacuum!
Yes, you have a pretty large volume with a hard vacuum inside, and 10 tons per m^2 of the atmosphere pushing in the outside.
@@LucasPereiradaSilva It's not surprising we don't see aliens so much. We have adapted to such harsh environments over such a long time.
looks like they had a smashing day :)
There is something so satisfying about observing a vacuum collapse upon itself.
Friday afternoon at the Tek office, 1963:
Hank: "Hey Bob, remember that pile of junk CRT's we have lying around? Want to have some fun and smash them?"
Bob: "Sure, great idea, but we're on company time, we really need a good excuse."
Hank: "Hold my beer, Bob."
Back in the day, we had a console TV CRT implode due to thermal shock. Luckily, there was plate glass cover in front of the tube. It was a youthful experience not forgotten.
Must've been a 1950's model
As a kid learning about electronics in the 60s I had always heard that a CRT would implode then explode. Interesting to actually see the effect in action. I'm surprised to see how thick the glass is.
When I was a teenager I made a game of the old TV tubes my dad left out for the garbage collector. The trick was to hit the rear of the tube(around the top of the neck) with the handle of a big screwdriver in just the right way as to make as small of a hole as possible. So that the sucking in air sound would be as long as possible. Taking out the whole neck with one hit at the side of the neck was also fun. The whole neck would immediately dislodge and be sucked inside
To give you an idea of how dangerous CRTs can be, if handled improperly, a friend, who is a retired television station technician, told me how a co-worker was carrying a removed CRT, with the faceplate against his chest, and he'd forgotten to don his leather apron. He tripped over a box, and fell forward. The neck of the tube hit the floor first, and was then broken, and shot through the faceplate, into the technician's heart by the force of the vacuum being released, and the surrounding atmosphere ramming the neck of the tube inward. I am so relieved to know I've finally gotten rid of the glass bombs that once surrounded me in my edit suite.
OK I am not into horror films because well they're not that scary and now hmmmmm I'm actually freaked out.
OK I had to come back, did the guy live? Unlikely.
@@imark7777777 I think you meant to comment on a horror film, or some other video. This only had to do with a cathode ray tube test to fail. And, no, the guy died on the spot.
Sounds like something you'd see in a Final Destination movie.
These are the most scientist looking scientists
A family back in the 50s came close to death when the CRT in their TV imploded, sending shrapnel into the couch and through the wall into the kitchen behind it. That family was lucky they weren't there watching TV when it happened.
There would be a seperate panel of saftey glass in front of the tube if it wasn't bonded directly to it and/or an implosion band. For some reason either of these features failed or were not present.
There were also the infamous Russian "death tvs" from the 70s and 80s.
Sounds a bit bogus. I know the 50's tubes could spontaneously implode, but for the glass to go into the drywall and into the kitchen?
In the 1970's I used to take apart TVs for the parts. Having a left over 27" tube and being a teen, we of course sat it out in a field and started chucking rocks at it. Took a while but we were eventually rewarded with a good "Thump!" as a rock hit and it imploded. Yeah, kids, don't be too near if you do that!
my first computer tech, i say that instead of PC tech b/c was working on a mid-range computer system as a civilian for the Army. Whenever we got a bad CRT. Me and the other tech would through it in the dumpster then climb up on the side of the dumpster and throw stuff at the CRT till it exploded. This was in 1985
Imagine having the freedom to do something this complicated at work.
And the boss seen sure you can use the good equipment and the good cameras and five other staff members. Yeah they might not have asked although they would've had to get ALLLLLLLLL the film developed.
This is a beautiful video! Thank you for posting this.
In the late 70's I went through a class on how to "safe" "Picture Tubes" for disposal. It could be just as tedious as defusing a bomb.
Dang the Slow-Mo guys RUclips channel is older than I thought
This has almost photoinductionish vibe...
Maybe they were his grandpas
On some of the implosions, the face would break away cleanly enough as to then rip right through the ass of the tube.
So that's why parents told us not to sit close to the screen
No, that was for X-rays.
@@td3993 Leaded glass for a reason
Always something going down in test 13.
seems to be more damage from the implosion than the impact, interesting, bet they had fun doing this, wonder who drew short stick and had to clean up all the shards of glass?
I never thought it was really possible to a CRT to implode, even if I already knew it had vacuum inside it...
May I use part of this video in my upcoming Star Wars prop video? I will be using a CRT tv, and felt it was important to cover the safety aspect visually (but not exploding one myself)
Of course I would credit and link your channel and video. Thank you for your consideration
Someone forgot to turn on the digital image stabilization on the high-speed cameras! ;)
Boss says" Find something to do!" Hey I know lets break stuff!
Back in the day CRT's were essentially bombs waiting to go off. Thankfully through research and development, they were eventually made safer to where the implosion wasn't nearly as bad as it originally was.
Thermonic implosions, would of liked to have seen some bigger ones destroyed. I have imploded some 22 and above CRT's but didn't get them on record, pity i guess.
Definitely not an activity to be done for fun or entertainment. It's our responsibility to preserve every available CRT at this point, since no more are being made.
@@stirlingschmidt6325 I currently have three 36 inch Sony HX tubes and two 32 inch Hd Sony nobody wants them the weight in at about 90 kg each.
I have broken many of these before in my life and all the time I would always see the same thing. No gas release only air intake. Although some of the inert gas inside of that vacuum tube is released after the implosion
"Ok guys, fun's over now, we got some cleaning up to do..."
Wonderful!
Weird how stuff smashed at 4000fps looks like zero gravity 😎❤️👍
Super interesting.
You see how the vacuum in the crt just sucks the glass in when the tube breaks
This video is awesome, everything from the results to the fact it's three guys hiding behind a partition wall in the corner of their office. 👌
ps. you can't release a vacuum 😉
If you think about it, there's really no such thing as vacuum! 😉
@@bob4analog oh, but I have 2 vacuums at home :)
Tubular dude!! 😁 Seriously, though, how expensive was 4000 fps _in film??_ 💸
This probably isn’t accurate so take it with a grain of salt but let’s say your roll of 35mm movie film is 400ft and there’s 16 frames per foot as standard according to Wikipedia so that’s about 6400 frames at your disposal.
Using todays prices which are obviously inaccurate to the time 1.6 seconds of footage is about £300 but either way would’ve been very expensive.
@@brymsd8895 Still a pretty good perspective.
The camera uses a standard 100 feet spool (30.48 m) double perf 16 mm film and a powerful motor to ensure a fast acceleration. The film is running continuously, because the camera has no shutter, just a rotating mirror or prism. The used film stock and development was not very expensive.
@@robbylehmann7110 Neat, straightforward solution. You sound like the voice of experience. I take it you used to shoot video like this?
I don't think the "releases the vacuum" term in the clip intro it's correct, I would say "suck the air" is a more accurate description.
This is just amazing!!!
Que buen video !
kinda creepy ngl, well, more or less disturbing.
Isn't there a whole bunch of lead in those things?
And phosphorus, and arsenic. And probably asbestos too. Essentially, you don't want to eat them.
Very interesting.
Around 30 years ago we found a long neck 19" TV tube without the metal safety band. We threw a rock at it and it went like a bomb. The furthest piece landed in a car park around 150 feet away and was over a pound heavy. We were very very very lucky not to be hurt!
I once dropped a Slurpee.
Sounds bogus
Id like to see this stuff filmed by slowmoguys
These guys are the OG Slow Mo guys!
@@DanielGBenesScienceShows of course. But high speed camera tech has come a long way in the last 40 years
@@FennecTECH It sure has! From 4000 fps to hundreds of thousands!
Wow, that was cool
Ill start to use facemask in front of my screens from now on!
Huh, that's extra interesting. And not because my birthday is on 9. october like the testing date.
My house makes strange noises at night
Doesn't look as bad as I expected
It's because they are so small ones. Bigger ones make more impressive, because the screen size affects the volume in all three dimensions, so increase in screen size increases the volume - and the vacuum making the implosion - exponentially.
but muh game perfect pixels
now repeat the test on a working state :D
As a 90s kid and now a retro gamer, I find this video offensive and depressing.
Got to let the past go my friend
@@samholdsworth420
Never......
As long as stoneage gamer, analogue, Castle mania games, iam8bit, limited run, strictly limited, retrorgb, N64 digital, super rare games, etc., etc., etc., etc...........are still around I will continue to enjoy my past.
Obviously it ain't going away anytime soon, It is what it is.
@@samholdsworth420 just because we have lightbulbs doesn't mean that candles should never be made again.
Why Is it depressing?
@@bob4analog The electrons won't have phosphere as a friend anymore,mind you,the electrons werent the best of friends, as they hit phosphere many times over the years.Thats depressing.
🕯
999
Thats funny. I thought this video was going to be about Critical Race Theory imploding. I hope these tubes last longer than that.
Very cool. Unofficial or not, good tests