Just as the light reached maximum intensity the three legged stool upon which I was sitting on came apart and flew across the room. Fortunately I was expecting this. These lamps are well known for stool dissemble and I had amassed a number of cushions which caught me and I was unharmed. The stool did not some off so well. One of the legs does not look as if it can be reattached. Thank you for your timely warning on these lamps. It is always good to be prepared.
I watched the portion of your video with the uvc exposure and I must report that I have died. Thank you for your videos and for the sweet release of eternal rest.
I paused while the lamp was 'buring' and took a screen shot. I'm now using it to sterilise stuff. Probably more effective than those cheap eBay LED 'sterilisers' 😉
Thanks for the warning! Luckily, I had all 50 of my negative energy removing bracelets on, and I only received slight burns. Although I'm starting to have stomach pains and my bed turned as hard as cardboard, so I might have to buy a couple more bracelets to remove all of the UVC out of my body.
When I was a kid, my parents instilled in me a strong fear of ever looking at the light from someone welding (e.g. at a construction site). This extended, in my little mind, to seeing welding on TV. I’d dutifully avert my eyes whenever someone was shown welding in a TV show or movie. This instinct, of course, helped me a lot with this video. 😜
I got all three symptoms you described. It's either the UV light coming from that lamp, through RUclips's video file and out of my monitor, or the massive flu I've been dealing with for the past two days. My money is definitely on the lamp, though.
I believe it also gets amplified by the video compression. My vision is now filled with artifacts, it's rather cool. I have to re-watch the vid every few hours to refresh them.
When I worked in electronics R&D in the '80s, we discovered that our "pure" water supply was becoming contaminated by algal growth so we fitted the supply tank with a UVC light. Two weeks later, all the plastic components fell to pieces. UV will do that.
@@tydshiin5783 Polyphenylene sulfide, HDPE, acrylic, polycarbonate, and polyetherimide are pretty immune to UV degradation. In addition, additives can impart resistance to many others, incorporated, not just coated.
I have been diagnosed by my doctor as having octal retinal migraine I have the visual disturbance but no headache my attacks have been confirmed by the doctor as being triggered by light of a certain wavelengh. LED lighting bluish white in colour brings on these attacks during the attacks I also on rare occations have trouble with perception of distance. When I remove myself from the offending light the attacks immediately stop. I viewed your video twice but I did not suffer any affects whatsoever from the phillips bulb. There is a greater danger from cold colour LED lighting than with this bulb.
Luckily I’m smart enough to avoid exposing my eyes and skin to this video, but I have been using it to clean around my home by playing this video and holding my phone over the things I need sterilized! Now I’m able to go from cutting raw meat to cutting vegetables without any cross contamination! Thank you Clive!
At my last job ( hospital maintenance)a similar lamp was used to sterilize towels and similar small fabric items. A stainless steel box with shelves and lots of warnings. It had a timer and solenoid latch on the door to lock it when in use. My cat was watching this video with me, and started purring loudly. May cause purring in cats.
Sometimes larger-scale ones can be seen in hospitals, which disinfect whole rooms - a dozen UV-C tubes mounted vertically in a tower on wheels. I presume they make sure the room is unoccupied first...
My barber had one of those boxes to sterilize scissors and combs between customers. Always thought it was a step up from the jars of blue liquid they use to used to sterilize items.
I actually got a UV lamp burn a long time ago. I had inherited a tanning bulb and decided it would be "fun" to stick it in my desk lamp. This bulb must have been manufactured before all the safety regulations came about with "mogul" bases and such. This lamp had a standard base just like any other bulb. I screwed it in and positioned it on my desk to illuminate my face and upper torso. I took off my shirt. This was on my computer desk. After some time, I felt a slight burning sensation on my face and thought oh, I better switch it off. A few hours later I looked like that guy in Close Encounteras with half my face burned, and it literally felt like I had sand in my eyes. Sunburn everywhere else from my left shoulder down. Cut me some slack, I was in my early 20s. Lesson learned, painfully.
So it emitted UVB I guess ? Otherwise you wouldn't have experienced as severe of a sunburn if any if it had been UVA only like a blacklight for example.
A guy who worked as maintenance mechanic at a factory I worked at told me he performed a series of welding tasks during a night shift (without his welding shield/goggles). I told him "Are you nuts"? He ended up in the clinic with burned eyes. He could still see, but told me "I felt like my eyes were covered by sand, & impossible to wash it off" I have heard of this exact same thing you described of yourself, happen to a woman who put a common CFL twisty in her desk lamp. Severe burns on her face and also eye burn CFL have U V C light if I remember correctly
@@dw3403good advice, and yeah I know. But I'm nearsighted since forever with a strong prescription, so those polycarbonate lenses have two positives. One, I don't wear sunglasses (the non-uv blocking ones are really bad for your eyes) and polycarbonate blocks UV. Maybe it's a net zero...I hope lol
The tube likely has 6mm of vapor pressure. That's the minimum to ignite neon dimly. Mercury will ignite at about 3mm and glow well at 6 or 7mm. at about 12mm any gas will cause the electrodes to overheat from excess current. I made a couple lamps, back in the old days. My primary symptom was nostalgia. Thank you. Keep working, good luck.
@@MicraHakkinentoday I learned that people use pressure units other than Pascals, bar and mmhg. Torr seems a bit redundant given it's almost exactly the same as mmhg.
Loved how you troll people with the symptoms from the lamp in a video. It's amazing how people can believe you can get UV exposure from the lamp in a video.
When I was an undergraduate, we used these exact lamps as "germicidal" sources in the early Microflow Class 1 safety cabinets. They were fitted with an interlock system that prevented lamp ignition until the open lower section was closed off with an aluminium barrier. By memory, they ran on a fixed 30 minute timer, and although the glass viewing section was not UV transparent, there was a clear warning to not look into the cabinet during the "disinfection cycle", probably for obvious reasons.
Had a similar setup for desinfection with safety interlocks. Was not very effective. However UVC is still used for desinfection of air supply systems but it is powered by LED.
@@goiterlanternbase No idea! It was just one of those things, and after using the cabinets for anything potentially hazardous, we used to close them off, and hit the "decontaminate" button, which did seem to work, certainly against vegetative organisms (possibly less effective against spores though), since post treatment contact plates always came back "no growth". "Sterilising" the cabinets was just another of those routine "end of day" lab. jobs - something one did without too much thought! 🙂
When I worked as a virologist in the 70's, our sterile cabinets were umm, sterilised by UV light overnight, each night. Seemed to work, but when we got serious, we sealed off the lab and boiled a pint or two of formaldehyde, leaving it for a full day. I sometimes wonder how come I'm still alive.
I was reminded of the packaging of regular light bulbs when I was a child -- just a corrugated cardboard cylinder. Today they're in proper boxes, and I hadn't thought of the earlier packaging since probably the 1990s. Ah, nostalgia.
After spending most of my career as a welder fabricator receiving many bouts of severe arc eye and skin radiation burn i dont think i have ever had such an extreme dose of involuntary stool movement apart from when i became a 250A wet electrode whilst footing a colleague's ladder.😮 great video as always clive 👍
So many symptoms Big Clive. So much ozone emitted from my monitor, there was suddenly a blue haze in the room. Yes, explosive diarrhea almost immediately! ;-) Cool lamp and thanks for sharing.
Having worked in Optometry/Ophthalmology my entire career i was eager to experience the uv retinal burn. I had to watch it a second time before that occurred. 😊
Reading the comments early, I realised this video had a UV hazard and was able to adjust my iPad’s emission spectrum to safe mode before being exposed. Great video Clive.
Very beautiful vintage UV lamp. The construction is very vacuum-tube-esque. And thanks for filming it so well, I was in dire need of some UV sources, as I will attempt tomorrow the first ever self-heart transplantation in my garage and I didn't know how to sterilize everything. Seems my smartphone and your video will do the trick. Fantastic.
My monochromatic cat did not have any reaction to the UV light, but the orange one became very bouncy, started dashing back and forth across the place and then jumped up on the table and meowed loudly. I later noticed that the legs of the table were loose and this is probably related.
So far I didn't experience any of the effects you mentioned, but after a few seconds of watching that bulb glowing a pile of dust fell from the surface of my computer screen, I examined it under the microscope and it appeared to be some type of mite toasted by the radiation. Now I have to play it also on my phone to see what crap is stuck on the screen.
Well I'm playing this on my mobile right now. I'll edit this with the answer. P.S.: Welp! There went my mobile! My screen soon caught on fire by the skin oils it had on. Curious how that happened despite me cleaning the screen every day.
I saw these in highschool labs in the 70s to sanitize shared safety glasses. The glasses were in a white metal cabinet with an interlock and timer so the lamp couldn't be lit unless the doors were closed, and the runtime was limited to 10 (or so) minutes. In truth, I never saw a teacher activate the thing, and it wasn't even plugged in.
We had such a cabinet in my junior high shop class as well. We would hang our safety glasses in it at the end of class, and when they were all properly stowed, the shop teacher would activate the cleaning cycle, which also physically locked the cabinet. I remember being disappointed that the UVC only killed germs and didn't also blast crud off of the glasses, as heavy use by myself and my fellow students rendered the glasses -- which were new when I started 7th grade -- quite disgusting by the end of 8th grade. At least everything on them was dead, though! 🤣
Shortly before the bench lights came back, I experienced an explosive burn on all exposed skin and the sensation of loose sand (or perhaps quicksand) in my eyes. Fortunately, there has been no effect on any of the stools in my office, perhaps due to them being made of pre-war steel. I'm thinking of borrowing a newer, wooden stool from my neighbor and rewatching this video to see if it instantaneously loosens or otherwise changes form or state of matter.
I didn't have any of the symptoms that you described, but I did have a sudden and inexplicable urge to take out massive loans to buy NFTs moments after the lamp reached its full intensity. Thankfully, the urge passed quickly after you restored normal illumination.
I was lucky to be sitting on the toilet when that moment happened. Thankfully I suffered from the described explosive "stool loosening" event at that moment as well. Thus leading to my realisation it was a shitty idea.
My friend and I played with some UVC lamps in high school years ago. They were near his mother's african violets. A couple days later the african violets turned to mush. I don't know what happened... She must have overwatered them.😂
Back in the day, the late 1960's to the 1970's my barber had a cabinet with a UV bulb in it where he kept his scissors and combs. The door had a frosted glass window in it, I think that my exposer to that lamp has allowed me to build up a resistance to the UV c, so I have not experienced any problems from your cool looking vintage bulb.
I'm actually immune to electrocution now thanks to many small shocks from electric fences as a kid. What doesn't kill you makes you stronger, so for the last 6 months I've been microdosing myself with lead, beryllium oxide dust, asbestos and hydrofluoric acid. I do feel a little strange it has to be said but I'm beginning gamma radiation next week so soon I'll be virtually invincible.
I used TUV6 to reliably erase thousands of 2716 and 2764 EPROMS back in the 90's. Homebrew installation in a Biscuit Tin - Thanks for 5* content, Clive - your expertise is appreciated :-)
Old hot cathode rectifier tubes (UK, valves) for radios of type 82 and 83 had low pressure mercury gas fill. Owing to the mercury the rectifiers had fairly low voltage drop of around 15 volts at several hundred volts applied. In operation, the tubes glowed blue-white, but the glow was confined between the cathode and inside of the hollow plate electrodes surrounding the cathode wires. The glass envelope was standard glass so probably not much UV light escaped. The RCA tube reference manual doesn’t have any warnings concerning UV emission, but does mention a glow is visible while operating … but then we’re talking the 1930s when safety wasn’t the concern it is now. 😊
@@bigclivedotcomWhile still letting UVA out and depending on the power emitted and how sensitive are your eyes it could still cause eyestrain and/or photophobia afterwards.
@@gcewing I’ve encountered pre- and early-WW-II era equipment with radium painted labels. Often the phosphor in the paint no longer glows but gives off considerable gamma radiation. Later WW-II instrument dials were phosphor painted and illuminated from a separate (presumably safe) UV light on the cockpit instrument panel, for example the flight engineer’s panel in a B-29. I scan potential restoration projects with cheap little FNIRSI Geiger counter to before considering starting work. There is a sad story of college students in a town in Pennsylvania, US who lived in an apartment near a shop which reconditioned aircraft instruments. Dials were stripped and repainted. The paint stripper was loaded with radium and simply dumped behind the shop. The people in the apartment were contaminated and sickened. The location became a major Superfund cleanup site.
And I've spent a few minutes staring intently at them at close range as a kid wondering what universal truth lies within and if the invisible aliens from beyond the moon are listening in on a really weird frequency and the glow was leftover messages leaking out to our dimension. And I might see the energy in raw form. I was a very weird child.
As a child I was covered in psoriasis, it was treated with UV B light. The treatment worked but not that well, but it did give a slight tan to the skin. Interesting subject, as UV light, as you said, can be quite harmful. Thanks for posting Clive, appreciated 👍
I noticed a Dermfix 1000MX? UVB lamp for it in the charity shop for a few weeks at £40. Just a cheap looking handheld thing with a 9W white, U-shaped tube and clear comb attachment. It retails for >£140 and my dad had Psoriasis on his legs around the same time. I looked online and realised someone had changed the included specs to clear safety glasses. It sold not long after 👓 His leg cleared up quickly with some cream from the docs anyway🦵
@@dazednconfused31337 UV bulbs will stop giving off the UV at a certain point but still light up. So you would have had to search for a new one had you bought it anyway.
Great content as usual Clive, 1 lamp i have seen recently that is very strange is a " Nernst lamp" which was repaired & tested by Andy at Photoninduction a few yrs ago, well worth a visit 👍
That is the exact model of UV lamp I had as a teenager back in the '80s that I used to erase EEPROMs. I had it mounted in a small cardboard bottomless box. I don't think I've seen another of that style of lamp since then until this video.
I watched it upside down so my backside is now as red as baboon's arse and my eyes are explosively flying out of my sockets like a pair of yo-yo's. Powerful stuff! 🤣
Fun fact, most UK leisure facility swimming pools will have kW power medium pressure UV lamps (this little tiddler will be low pressure) chucking out 254nm UV. Not only is it highly biocidal but its used to react out the chlorine/ammonia compounds that form in pools from the chlorine and, err, pee.....
we have one at work and it's a beast, it takes an 85W 97V Phillips TUV lamp. it works quite well at dissipating the chlorine and keeping the nasty growths down.
Ooh, that definitely affects your turds..... They emerged sunburnt, and apparently quite blind. I deduced this from the fact that they completely missed the toilet bowl and are now running around the bathroom floor, crashing into everything and can't find the bowl.
Here we are, the excuse for the after party shenanigans and celabrations. Happy holidays to you and those rascals you gave birth to. Don't worry they'll dry out on their own. Just don't feed em.
Upon exposure to the UV I became extremely... aroused. I called my farrier and he said it was absolutely normal, especially in rainy weather, but especially at high altitudes. At near sea-level it's still common, but a little surprising, especially since it made my cats chase their tails in unison. I was quite impressed, actually. They were like synchronous feline pinwheels.
@@bigclivedotcom Strange, I would have expected it to struggle a bit after sitting for decades unused. I have seen this with fluorescent tubes. Ones that were sitting unused for 20-40 years, when you power them up often just their filaments glow orange for a few minutes, then it starts to glow white around the filaments, then it starts flashing for minutes like a bad tube and finally it strikes and works perfectly. The whole process can take up to 15 minutes! I guess in those all of the mercury has settled down and needs to evaporate again. Maybe they can also have cathode poisoning, so they have to boil off the poisoned outer layer of emitting material from the filaments.
@@TestGearJunkie. Even seeing what happens in the first cycle or two could be interesting. Maybe that is a bit quick for what Clive has for camera gear...
I felt it! Full sandpaper eye effect! Had no idea the OLED screen on my phone had uvc LEDs as part of the equation. I now regularly use this video to sterilize my hands instead of washing them, very useful, thank you! :)
OMG! I left for vacation about a month ago and left this playing on loop the entire time. My office is now devoid of any color including the video! Hope you're alright there, sorry!
Get a tube-type battery charger. The rectifier bulb glows nice and purple. Voltage regulator tubes like 0A2 glow nicely. Check out all the tubes that start with 0. Get something that takes one. 1920s radio battery eliminators may work for you.
So having come back from an emergency visit to the loo, feeling awfully flushed, and my eyes are itchy like I'm up way too late watching youtube videos when I should be sleeping, if you know what I mean. Thanks alot, Clive. Distribute protective goggles next time!
Upon being informed of the potential side effects of viewing this lamp, i was struck by uncontrollable laughter. I am aghast that you would display a device with such obvious mental effects on the unsuspecting populace.
On board of ships still in use for water treatment, the lamp is installed in a quartz tube and the water is circulated around the quartz tube. Very effective
Sort of, as long as the pipes downstream are "clean" , it wont work on pipework that cannot see it , so it is only effective at the waters point of passing ( copper pipes of course have a anti bacteria (virus) functionality anyway , but plastic ones , who knows .
@@highpath4776 , on most of the ship's the water from the pipes are not considered drinking water, but for galley and bathroom use. They bring bottled water onboard or they refill water bottles directly from the fresh water maker.
I didn't have any symptoms as you described, but when the lamp was on, two black helicopters with no markings flew in and hovered over my house. Nobody rapelled down, thankfully. 8^) Anyway thanks for the review of this interesting bulb. Cheers!
God Clive, I love your humor and your channel. Been here for years and years! I don't even remember how long. Anyway I'm now in my late 20s and changing my career path into electronics, going back to school! Your videos have been a big part of why I slowly fell in love with electronics/electricity!
y'know, i completely truthfully just paused it on "let me know if any of those things happens" because just before you began listing the symptoms, i developed an immediate, rather foul-feeling urge. literally corresponded directly to the UV lamp. thanks for the great video!
I've got a couple of these, sadly no wrappers, though. One came in a metal housing made for a school laboratory, with a small half-inch or so hole in the side to let the UV out. I believe they used it for experiments with gold leaf electroscopes. 02:50 Date code 8F comes back as June 1978. Lamp was made at Turnhout in Belgium. They also did a blacklight version, the TW6, but these seem ultra-rare, I only know of two collectors who have one (and neither of them will part with them grrr 😋)
I fear I can not begin to describe the lovecraftian nightmares that have just forcefully escaped my bowels. It's simply everywhere. No nook or cranny in my room was safe. Please, record this data for scientific prosperity, and continue on in your research without me. The horrors... The horrors
There will be a date code and factory code stamped on the base. The date code is a letter (A thru M skipping I) and a number. The letter is the month and the number is the ones digit of the year. Lamp was made in an odd decade if number first and an even decade if letter first. Factory code is probably a square with a vertical line in it (Turnhout, Belgium). Would elaborate further but the explosive diarrhea launched me into low earth orbit. Fortunate to hit a Starlink satellite so I could post this. Have raging headache from impact tho...
My reaction was a rush to the bathroom. Though I can't help thinking it was more to do with IBS and indeed happens most often without your assistance 🙂
4:00 I like the idea of a gigaohm resistor! What would the resistance be of those glass insulators which support cables hung from cross-country pylons?
Resistors of 1 Gohm are commercially available. If you ever take apart a large-diaphragm condenser microphone, you will probably find a 500M or 1G resistor between gate and source of the FET that amplifies the (very high impedance) output of the mic capsule. If the capsule is externally polarized (not an electret type), there will be a second similar-value resistor used to feed the backplate polarizing voltage to the capsule.
Somewhere I have a 1000MOhm (= 1 Gigaohm = 1 Jiggaohm, as doc Brown would say) vacuum resistor. Made in East-Germany. I bought it to test insulation testers. Although it is not the best as a calibration standard, because it has either 5 or 10% tolerance. I haven't seen it in years, but good to know I have it... somewhere. The seller even had 100 GOhm ones. Not sure what those are used for.
While I didn’t feel any direct effect of the lamp I did exclaim “Better than factory!” a couple of times seemingly for no reason. It is a strange, but mostly repairable, world 😀👍
I wanted to experience the symptoms, so I glued my eyes to the TV (it's an LG OLED, so really good color reproduction) and watched the bulb part in a loop for 5 hours. My eyes do indeed hurt now. I think my corneas burned off onto the TV. Also my shirt turned red. But that may just be because everything looks red now.
Smell that Ozone! ...I fired up my ancient CRT (cathode ray tube) computer monitor to watch this video as I expected the thick front glass screen would absorb all the UV and I would be safe. I'm OK, no nasty effects, but I could distinctly smell ozone coming from the back of the CRT monitor. That's one powerful UV lamp you have there. My imagination runs riot thinking of the resultant chaos if this video was ever shown to a crowd on a large video wall.
Might be treated to block the ozone-generating wavelength though. At least if it's as advanced as modern UVC tubes made from big brands like Philips. I think it's almost only the cheapy chinese tubes that produce ozone.
Clive is absolutely hilarious! He knows many people actually believe that displays can recreate dangerous wavelengths of light. No matter how much I try and educate people, they are stubborn in their ways of thought. If it were true, you could get a sun tan from putting a picture of the sun as your wallpaper.
In the early 90's, shortly after the Loma Prieta earthquake I moved from Seattle to San Francisco to help a friend open a restaurant. He needed a bar manager and I happened to be in that business at the time. I got to talking to the rest of the staff over the year I was there, and one question I typically asked over closing time shift drinks, was "what were you doing right before the big earthquake.....do you remember?" and quite a few answered "yeah, I had to go to the bathroom all of a sudden, and just when I sat down, the earthquake hit". So a not insignificant percentage of the San Francisco Bay area was sitting on the toilet during the "event" and umm, both events were said to be explosive... No UVC necessary.
2:23 I had the third symptom a few hours before watching the video. I didn't know UVC effects were so strong that they could go back in time. Thanks for letting us know.
8F and the little “boxy thing” are actually Philips’ indicators of country and production dates! The box with the diagonal line suggests Holland, as stated on the bulb and 8F would suggest 1978/1998/2018 (because the number is before the letter) and F (being the 6th letter) meaning June!
Symptoms experienced from viewing UV-C through my computer monitor that is in no way capable of emitting UV-C: Snorting my coffee up my nose, swallowing it painfully, and laughing like a jackass. Thankfully, I managed not to give my keyboard a nasal coffee spray this time.
You are simply fantastic. I’ve been giggling like a kid and I am 55. The old phrase, “Can I push your stool back in “ Is a little used phrase now days. Much love Alex.
Clive, I know you're joking. But I haven't slept more than three hours in a week. My eyes are as red and itchy as can be, and I've just had explosive diarrhea.
You should have put a warning in the title. Two days after watching this I had a migraine and it hurts when I pee, I rang my dominatrix and she assured me it was not due to her treatment of my stiff muscles.
Thanks for showing us the lamp, preserving it's moment in RUclips time and see you bringing it back to life after all these years, even if the lamp didn't give 2 shits.
thanks for the warnings. but it was too late, the radiation exposure caused a severe case of scribbling bored ape NFTs all over the place for a full day!
We used to use these in safety glass cabinets for sterilization. If you bypass the safety switch in the door you can stare into the bulb until you see Lemmy. I now use these in all my lamps. Jimi Hendrix says hi. Uvc is awesome.
Just as the light reached maximum intensity the three legged stool upon which I was sitting on came apart and flew across the room. Fortunately I was expecting this. These lamps are well known for stool dissemble and I had amassed a number of cushions which caught me and I was unharmed. The stool did not some off so well. One of the legs does not look as if it can be reattached. Thank you for your timely warning on these lamps. It is always good to be prepared.
I know, the four legged chair on the other side of the room also lost one of its legs in the process of watching this dangerous video
I hope you can still chair the next meeting.
🙃
Dog mipples
😂😂😂😂😂😂😂😅😊
Make sure none of your screws are loose too.
I watched the portion of your video with the uvc exposure and I must report that I have died.
Thank you for your videos and for the sweet release of eternal rest.
LOL!!!!!!!
Now you can get a date with ao cortez
What have you been smoking?
RIP in peace.
I too have died..... from laughter!
best comments section. ever.
I paused while the lamp was 'buring' and took a screen shot. I'm now using it to sterilise stuff. Probably more effective than those cheap eBay LED 'sterilisers' 😉
Genius.
My eyes.. My Eyes....MY EYES>>>awwwww
This is fucking hilarious
That's a good idea, I'll screen capture and then print the image to use for uv ageing
🤣
The ultimate HDR is when your camera can record ultraviolet light, and your monitor can emit that ultraviolet light.
That will be LG next move to their WOLED, they will add more sub pixels including IR, UV and everything arriving soon in........ NEVER 😂
I guess to a certain extend this is actually the case.
But this extend is far from causing any noticeable effects.
That's called UVDR, it is currently being researched at the University of Aitken.
@@guily6669sweet, it’s been a while since I watched a TV that also displays x-rays.
@@EweToobUsername mine shows X-ray I mean if you watch a X-ray video being shown 🤣
Thanks for the warning! Luckily, I had all 50 of my negative energy removing bracelets on, and I only received slight burns. Although I'm starting to have stomach pains and my bed turned as hard as cardboard, so I might have to buy a couple more bracelets to remove all of the UVC out of my body.
When I was a kid, my parents instilled in me a strong fear of ever looking at the light from someone welding (e.g. at a construction site). This extended, in my little mind, to seeing welding on TV. I’d dutifully avert my eyes whenever someone was shown welding in a TV show or movie. This instinct, of course, helped me a lot with this video. 😜
I got all three symptoms you described. It's either the UV light coming from that lamp, through RUclips's video file and out of my monitor, or the massive flu I've been dealing with for the past two days. My money is definitely on the lamp, though.
I believe it also gets amplified by the video compression.
My vision is now filled with artifacts, it's rather cool. I have to re-watch the vid every few hours to refresh them.
So it's you I caught the flu from. Please always sterilize your 'puter with a local TUV-UV video file before coming online.
@@hydrocarbon82 Did you at least get the "Premium Full HD" toggle on your right corner?
May as well have to pay for premium vision now...
I didn't experience any of the mentioned symptoms. But I noticed that I can now see through walls in the dark, which is nice.
When I worked in electronics R&D in the '80s, we discovered that our "pure" water supply was becoming contaminated by algal growth so we fitted the supply tank with a UVC light. Two weeks later, all the plastic components fell to pieces. UV will do that.
UV is the solution to destroying plastic! Thats why sunlight will break it down, albeit much slower.
Not all plastics will do that. Nary a chemist on the staff?
@@mikemondano3624 technically all plastics degrade from UV, it just depends on how long they last
Plus a uv resistant coating may be more beneficial
@@tydshiin5783 Polyphenylene sulfide, HDPE, acrylic, polycarbonate, and polyetherimide are pretty immune to UV degradation. In addition, additives can impart resistance to many others, incorporated, not just coated.
I have been diagnosed by my doctor as having octal retinal migraine I have the visual disturbance but no headache my attacks have been confirmed by the doctor as being triggered by light of a certain wavelengh. LED lighting bluish white in colour brings on these attacks during the attacks I also on rare occations have trouble with perception of distance. When I remove myself from the offending light the attacks immediately stop. I viewed your video twice but I did not suffer any affects whatsoever from the phillips bulb. There is a greater danger from cold colour LED lighting than with this bulb.
Luckily I’m smart enough to avoid exposing my eyes and skin to this video, but I have been using it to clean around my home by playing this video and holding my phone over the things I need sterilized! Now I’m able to go from cutting raw meat to cutting vegetables without any cross contamination! Thank you Clive!
Thanks for the warnings. My stool did indeed become loose. So much so that one of the legs fell off!
Not you as well, did you not wait around to take it home from A&E ? I am sure they would give it a wipe and put it in a bag.
That sounds nasty, at least you have another leg to hop along on.
Loose stools are a messy problem, I hope your trousers are Ok.
:O You too?
Did the FRONT leg fall off?
At my last job ( hospital maintenance)a similar lamp was used to sterilize towels and similar small fabric items. A stainless steel box with shelves and lots of warnings. It had a timer and solenoid latch on the door to lock it when in use.
My cat was watching this video with me, and started purring loudly. May cause purring in cats.
Sometimes larger-scale ones can be seen in hospitals, which disinfect whole rooms - a dozen UV-C tubes mounted vertically in a tower on wheels. I presume they make sure the room is unoccupied first...
The ghost of my cat also started purring loudly, may cause purring in ghost cats.
@@jwalster9412 Awwww 😺
I remember Wood Shop in middle school had a cabinet for doing same thing for our PPE.
My barber had one of those boxes to sterilize scissors and combs between customers. Always thought it was a step up from the jars of blue liquid they use to used to sterilize items.
Thank you! I've been suffering some constipation; that was a very moving experience.
I actually got a UV lamp burn a long time ago. I had inherited a tanning bulb and decided it would be "fun" to stick it in my desk lamp. This bulb must have been manufactured before all the safety regulations came about with "mogul" bases and such. This lamp had a standard base just like any other bulb. I screwed it in and positioned it on my desk to illuminate my face and upper torso. I took off my shirt. This was on my computer desk. After some time, I felt a slight burning sensation on my face and thought oh, I better switch it off. A few hours later I looked like that guy in Close Encounteras with half my face burned, and it literally felt like I had sand in my eyes. Sunburn everywhere else from my left shoulder down. Cut me some slack, I was in my early 20s. Lesson learned, painfully.
So it emitted UVB I guess ?
Otherwise you wouldn't have experienced as severe of a sunburn if any if it had been UVA only like a blacklight for example.
A guy who worked as maintenance mechanic at a factory I worked at told me he performed a series of welding tasks during a night shift (without his welding shield/goggles).
I told him "Are you nuts"?
He ended up in the clinic with burned eyes.
He could still see, but told me
"I felt like my eyes were covered by sand, & impossible to wash it off"
I have heard of this exact same thing you described of yourself, happen to a woman who put a common CFL twisty in her desk lamp.
Severe burns on her face and also eye burn
CFL have U V C light if I remember correctly
I hope you wear sunglasses religiously. You upped your chances of getting cataracts sooner
@@dw3403good advice, and yeah I know. But I'm nearsighted since forever with a strong prescription, so those polycarbonate lenses have two positives. One, I don't wear sunglasses (the non-uv blocking ones are really bad for your eyes) and polycarbonate blocks UV. Maybe it's a net zero...I hope lol
@@robertbauer6723
Good to hear.
Glad I was watching this while on the toilet. I've been constipated for a week. Those UVCs hit my eyes and I'm clean as a whistle now! Thank you!!!
The tube likely has 6mm of vapor pressure. That's the minimum to ignite neon dimly. Mercury will ignite at about 3mm and glow well at 6 or 7mm. at about 12mm any gas will cause the electrodes to overheat from excess current. I made a couple lamps, back in the old days. My primary symptom was nostalgia. Thank you. Keep working, good luck.
When you say "6mm of vapor pressure", am I correct in assuming you are referring to 6 mm Hg (or 6 Torr)?
@@MicraHakkinentoday I learned that people use pressure units other than Pascals, bar and mmhg. Torr seems a bit redundant given it's almost exactly the same as mmhg.
The vapor pressure of mercory is only 1 Pascal at 40 degrees.
Loved how you troll people with the symptoms from the lamp in a video. It's amazing how people can believe you can get UV exposure from the lamp in a video.
I'm not sure who believed that UVC comes through a screen, but I'm shocked about how many people have loose stools.
@@Rhalion If you don't bolt your stools down securely, some punk will run off with them.
@@Rhalionthey really should see a doctor about that. Could be serious.
I've gotten sore eyes from watching welding videos. Of course it's psychosomatic.....
@@Rhalion Loose stools sink friendships.
When I was an undergraduate, we used these exact lamps as "germicidal" sources in the early Microflow Class 1 safety cabinets. They were fitted with an interlock system that prevented lamp ignition until the open lower section was closed off with an aluminium barrier. By memory, they ran on a fixed 30 minute timer, and although the glass viewing section was not UV transparent, there was a clear warning to not look into the cabinet during the "disinfection cycle", probably for obvious reasons.
Did it had an optic inside, because they are way less effective than the low pressure lamps🤗 I ever guessed what the selling point of those lamps was.
Had a similar setup for desinfection with safety interlocks. Was not very effective. However UVC is still used for desinfection of air supply systems but it is powered by LED.
@@goiterlanternbase No idea! It was just one of those things, and after using the cabinets for anything potentially hazardous, we used to close them off, and hit the "decontaminate" button, which did seem to work, certainly against vegetative organisms (possibly less effective against spores though), since post treatment contact plates always came back "no growth". "Sterilising" the cabinets was just another of those routine "end of day" lab. jobs - something one did without too much thought! 🙂
When I worked as a virologist in the 70's, our sterile cabinets were umm, sterilised by UV light overnight, each night. Seemed to work, but when we got serious, we sealed off the lab and boiled a pint or two of formaldehyde, leaving it for a full day. I sometimes wonder how come I'm still alive.
I was reminded of the packaging of regular light bulbs when I was a child -- just a corrugated cardboard cylinder. Today they're in proper boxes, and I hadn't thought of the earlier packaging since probably the 1990s. Ah, nostalgia.
Yup, I remember the same. Just a cylinder of corrugated cardboard turned in at each end. Had also entirely forgotten about it until this video.
After spending most of my career as a welder fabricator receiving many bouts of severe arc eye and skin radiation burn i dont think i have ever had such an extreme dose of involuntary stool movement apart from when i became a 250A wet electrode whilst footing a colleague's ladder.😮 great video as always clive 👍
How did your colleague fare in the wet electrode incident?
So many symptoms Big Clive. So much ozone emitted from my monitor, there was suddenly a blue haze in the room. Yes, explosive diarrhea almost immediately!
;-)
Cool lamp and thanks for sharing.
Having worked in Optometry/Ophthalmology my entire career i was eager to experience the uv retinal burn. I had to watch it a second time before that occurred. 😊
If you pause when it's lit you can place your face against the screen for maximum exposure.
Believe me, from my own experience, you *never* want to experience "snow blindness" or "welder's eye" or whatever it's called. It's very painful.
@@acmefixer1 It's called 'arc eye'.
@@DelticEngine Clive is from Scotland, so his version is called "arc eye the noo".
@@DelticEngine - It's actually called "aaargh, fuck".
Reading the comments early, I realised this video had a UV hazard and was able to adjust my iPad’s emission spectrum to safe mode before being exposed. Great video Clive.
Very beautiful vintage UV lamp. The construction is very vacuum-tube-esque.
And thanks for filming it so well, I was in dire need of some UV sources, as I will attempt tomorrow the first ever self-heart transplantation in my garage and I didn't know how to sterilize everything. Seems my smartphone and your video will do the trick. Fantastic.
My monochromatic cat did not have any reaction to the UV light, but the orange one became very bouncy, started dashing back and forth across the place and then jumped up on the table and meowed loudly. I later noticed that the legs of the table were loose and this is probably related.
I mean... That just sounds like normal orange cat behavior to me.
Hardly a catastrophe.
Maybe UVC attracted the single brain cell all orange cats share?
@@southilgurl2003God, I hope not. They're dumb enough as it is! (I love my orange, but he's not very bright, as usual.)
@@puckcat22679 lmao, mine is literally wandering around meowing at thin air as we speak
So far I didn't experience any of the effects you mentioned, but after a few seconds of watching that bulb glowing a pile of dust fell from the surface of my computer screen, I examined it under the microscope and it appeared to be some type of mite toasted by the radiation. Now I have to play it also on my phone to see what crap is stuck on the screen.
Well I'm playing this on my mobile right now. I'll edit this with the answer.
P.S.: Welp! There went my mobile! My screen soon caught on fire by the skin oils it had on. Curious how that happened despite me cleaning the screen every day.
My stool is fine but my chair is loose... :)
Did you catch it yet?
@@Anvilshock ??? Catch what?
@@richardwernst The stool. You said it escaped. I asked whether you caught up with it yet.
@@Anvilshock Ah.
I saw these in highschool labs in the 70s to sanitize shared safety glasses. The glasses were in a white metal cabinet with an interlock and timer so the lamp couldn't be lit unless the doors were closed, and the runtime was limited to 10 (or so) minutes.
In truth, I never saw a teacher activate the thing, and it wasn't even plugged in.
We had those same cabinets in my junior high shop classes. Never saw one actually used as all the safety glasses had long ago disappeared.
We had such a cabinet in my junior high shop class as well. We would hang our safety glasses in it at the end of class, and when they were all properly stowed, the shop teacher would activate the cleaning cycle, which also physically locked the cabinet. I remember being disappointed that the UVC only killed germs and didn't also blast crud off of the glasses, as heavy use by myself and my fellow students rendered the glasses -- which were new when I started 7th grade -- quite disgusting by the end of 8th grade. At least everything on them was dead, though! 🤣
Shortly before the bench lights came back, I experienced an explosive burn on all exposed skin and the sensation of loose sand (or perhaps quicksand) in my eyes. Fortunately, there has been no effect on any of the stools in my office, perhaps due to them being made of pre-war steel. I'm thinking of borrowing a newer, wooden stool from my neighbor and rewatching this video to see if it instantaneously loosens or otherwise changes form or state of matter.
I didn't have any of the symptoms that you described, but I did have a sudden and inexplicable urge to take out massive loans to buy NFTs moments after the lamp reached its full intensity. Thankfully, the urge passed quickly after you restored normal illumination.
I was lucky to be sitting on the toilet when that moment happened. Thankfully I suffered from the described explosive "stool loosening" event at that moment as well. Thus leading to my realisation it was a shitty idea.
@@zyebormROFL !!! 😂
My friend and I played with some UVC lamps in high school years ago. They were near his mother's african violets. A couple days later the african violets turned to mush. I don't know what happened... She must have overwatered them.😂
Guess they weren't "ultra violets".
@@Eis_Bear - Well, ultra means "beyond", so in a way they _became_ ultra violets.
You guys got lucky you didn't get welder's flash. Unless you knew and wore eye protection.
@PunakiviAddikti 🤣 yes we did, but that is another story of an ER trip with gravel in the eyes. 🤣🤣🤣
@@CrazyOregonBeaver Lmao rip
Back in the day, the late 1960's to the 1970's my barber had a cabinet with a UV bulb in it where he kept his scissors and combs. The door had a frosted glass window in it, I think that my exposer to that lamp has allowed me to build up a resistance to the UV c, so I have not experienced any problems from your cool looking vintage bulb.
Skins too thick....
I'm actually immune to electrocution now thanks to many small shocks from electric fences as a kid. What doesn't kill you makes you stronger, so for the last 6 months I've been microdosing myself with lead, beryllium oxide dust, asbestos and hydrofluoric acid. I do feel a little strange it has to be said but I'm beginning gamma radiation next week so soon I'll be virtually invincible.
I used TUV6 to reliably erase thousands of 2716 and 2764 EPROMS back in the 90's. Homebrew installation in a Biscuit Tin - Thanks for 5* content, Clive - your expertise is appreciated :-)
Thanks. Much appreciated.
What do you mean back in the 90s, I still use it 😎way better than leds.
OMG, my parrot was sat on my head when I watched this video. I've just had to wash my hair!!
Old hot cathode rectifier tubes (UK, valves) for radios of type 82 and 83 had low pressure mercury gas fill. Owing to the mercury the rectifiers had fairly low voltage drop of around 15 volts at several hundred volts applied. In operation, the tubes glowed blue-white, but the glow was confined between the cathode and inside of the hollow plate electrodes surrounding the cathode wires. The glass envelope was standard glass so probably not much UV light escaped. The RCA tube reference manual doesn’t have any warnings concerning UV emission, but does mention a glow is visible while operating … but then we’re talking the 1930s when safety wasn’t the concern it is now. 😊
With those tubes the standard glass would block most harmful UV wavelengths.
@@bigclivedotcomWhile still letting UVA out and depending on the power emitted and how sensitive are your eyes it could still cause eyestrain and/or photophobia afterwards.
They probably had radium, asbestos and arsenic in them as well.
@@gcewing I’ve encountered pre- and early-WW-II era equipment with radium painted labels. Often the phosphor in the paint no longer glows but gives off considerable gamma radiation. Later WW-II instrument dials were phosphor painted and illuminated from a separate (presumably safe) UV light on the cockpit instrument panel, for example the flight engineer’s panel in a B-29. I scan potential restoration projects with cheap little FNIRSI Geiger counter to before considering starting work.
There is a sad story of college students in a town in Pennsylvania, US who lived in an apartment near a shop which reconditioned aircraft instruments. Dials were stripped and repainted. The paint stripper was loaded with radium and simply dumped behind the shop. The people in the apartment were contaminated and sickened. The location became a major Superfund cleanup site.
And I've spent a few minutes staring intently at them at close range as a kid wondering what universal truth lies within and if the invisible aliens from beyond the moon are listening in on a really weird frequency and the glow was leftover messages leaking out to our dimension. And I might see the energy in raw form.
I was a very weird child.
As a child I was covered in psoriasis, it was treated with UV B light. The treatment worked but not that well, but it did give a slight tan to the skin. Interesting subject, as UV light, as you said, can be quite harmful. Thanks for posting Clive, appreciated 👍
I noticed a Dermfix 1000MX? UVB lamp for it in the charity shop for a few weeks at £40. Just a cheap looking handheld thing with a 9W white, U-shaped tube and clear comb attachment.
It retails for >£140 and my dad had Psoriasis on his legs around the same time. I looked online and realised someone had changed the included specs to clear safety glasses. It sold not long after 👓
His leg cleared up quickly with some cream from the docs anyway🦵
@@dazednconfused31337 UV bulbs will stop giving off the UV at a certain point but still light up. So you would have had to search for a new one had you bought it anyway.
there are different bands of UV. B lamp can give burn. C band lamp are dangerous but they can sterilize.
I never had an issue watching videos like this, but since I bought an hdr screen I did start suffering symptoms when watching these uv-c videos.
The older "tube" monitors had a much 'warmer' image. Not as harsh as these newfangled flat 4K ultra UVB-C screens!
:p
Great content as usual Clive, 1 lamp i have seen recently that is very strange is a " Nernst lamp" which was repaired & tested by Andy at Photoninduction a few yrs ago, well worth a visit 👍
That is the exact model of UV lamp I had as a teenager back in the '80s that I used to erase EEPROMs. I had it mounted in a small cardboard bottomless box.
I don't think I've seen another of that style of lamp since then until this video.
I watched it upside down so my backside is now as red as baboon's arse and my eyes are explosively flying out of my sockets like a pair of yo-yo's. Powerful stuff! 🤣
Thanks a lot!
With the help of this video I was finally able to erase that couple of EPROM I had lying in my spare parts drawer!
Suggest you keep a print-out of a screenshot handy.
It did this to my EPROMs, too. They were in a closed drawer two rooms over.
Fun fact, most UK leisure facility swimming pools will have kW power medium pressure UV lamps (this little tiddler will be low pressure) chucking out 254nm UV. Not only is it highly biocidal but its used to react out the chlorine/ammonia compounds that form in pools from the chlorine and, err, pee.....
Seems Clive didn't like your comment - no heart!
cyanogen chloride (CNCI) and trichloramine (NCl3). Mmm Mmm. I guess the UV breaks those down into something less carcinogenic.
we have one at work and it's a beast, it takes an 85W 97V Phillips TUV lamp. it works quite well at dissipating the chlorine and keeping the nasty growths down.
I'm sat in a pool of hot gravy now, thanks Clive. I can't tell if my eyes are burning from the lamp or the fumes from the muck.
WAY too much information there 😮
I got all the symptoms just from reading the thumbnail. Never knew you could transmit UVC over the internet before even watching the vijayo!
Ooh, that definitely affects your turds..... They emerged sunburnt, and apparently quite blind. I deduced this from the fact that they completely missed the toilet bowl and are now running around the bathroom floor, crashing into everything and can't find the bowl.
😂
I have that issue with Gerbils on the regular :(
Here we are, the excuse for the after party shenanigans and celabrations.
Happy holidays to you and those rascals you gave birth to.
Don't worry they'll dry out on their own. Just don't feed em.
Upon exposure to the UV I became extremely... aroused. I called my farrier and he said it was absolutely normal, especially in rainy weather, but especially at high altitudes. At near sea-level it's still common, but a little surprising, especially since it made my cats chase their tails in unison. I was quite impressed, actually. They were like synchronous feline pinwheels.
Thanks, couldn't stop laughing at your comment
I would’ve loved 🥰 to have seen this warmup phase you spoke of before seeing it fully lit 💡
There wasn't one. It just burst into life.
@@bigclivedotcom Strange, I would have expected it to struggle a bit after sitting for decades unused. I have seen this with fluorescent tubes. Ones that were sitting unused for 20-40 years, when you power them up often just their filaments glow orange for a few minutes, then it starts to glow white around the filaments, then it starts flashing for minutes like a bad tube and finally it strikes and works perfectly. The whole process can take up to 15 minutes! I guess in those all of the mercury has settled down and needs to evaporate again. Maybe they can also have cathode poisoning, so they have to boil off the poisoned outer layer of emitting material from the filaments.
@@bigclivedotcomno slow motion video?
These are cold cathode lamps. They don't 'warm up' as such.
@@TestGearJunkie. Even seeing what happens in the first cycle or two could be interesting. Maybe that is a bit quick for what Clive has for camera gear...
I felt it! Full sandpaper eye effect! Had no idea the OLED screen on my phone had uvc LEDs as part of the equation. I now regularly use this video to sterilize my hands instead of washing them, very useful, thank you! :)
OMG! I left for vacation about a month ago and left this playing on loop the entire time. My office is now devoid of any color including the video! Hope you're alright there, sorry!
Such a pretty glow. I'd love one with a UV filter just because it looks pretty
Looks pretty and then all you have is the memory of what it and everything else looked like. :(
Technically, that would probably just be glass. These lamps are usually made out of quartz instead, which does let that wavelength pass through
@@robertcroft2591 These just dry your eyes out. Basically give your retinas a sunburn.
Get a tube-type battery charger. The rectifier bulb glows nice and purple. Voltage regulator tubes like 0A2 glow nicely. Check out all the tubes that start with 0. Get something that takes one. 1920s radio battery eliminators may work for you.
What an interesting color. I didnt expect the orange st the ends
So having come back from an emergency visit to the loo, feeling awfully flushed, and my eyes are itchy like I'm up way too late watching youtube videos when I should be sleeping, if you know what I mean. Thanks alot, Clive. Distribute protective goggles next time!
Safety sckwints.
@@robertcroft2591 or safety clenching....
I wish you’d shown the lamp lighting again at the end. You have to bookend these videos with things like that. Just makes sense.
Upon being informed of the potential side effects of viewing this lamp, i was struck by uncontrollable laughter. I am aghast that you would display a device with such obvious mental effects on the unsuspecting populace.
On board of ships still in use for water treatment, the lamp is installed in a quartz tube and the water is circulated around the quartz tube. Very effective
Ps I see double now maybe the light or maybe the whisky 😊😊😊
Sort of, as long as the pipes downstream are "clean" , it wont work on pipework that cannot see it , so it is only effective at the waters point of passing ( copper pipes of course have a anti bacteria (virus) functionality anyway , but plastic ones , who knows .
@@highpath4776 , on most of the ship's the water from the pipes are not considered drinking water, but for galley and bathroom use. They bring bottled water onboard or they refill water bottles directly from the fresh water maker.
The same stool problems as everyone else had. Legs came loose, also my red rash glows in the dark, which is pretty cool if you ask me.
I didn't have any symptoms as you described, but when the lamp was on, two black helicopters with no markings flew in and hovered over my house. Nobody rapelled down, thankfully. 8^) Anyway thanks for the review of this interesting bulb. Cheers!
God Clive, I love your humor and your channel. Been here for years and years! I don't even remember how long. Anyway I'm now in my late 20s and changing my career path into electronics, going back to school! Your videos have been a big part of why I slowly fell in love with electronics/electricity!
y'know, i completely truthfully just paused it on "let me know if any of those things happens" because just before you began listing the symptoms, i developed an immediate, rather foul-feeling urge. literally corresponded directly to the UV lamp. thanks for the great video!
So awesome!
Please do more gas discharge lamps
The bulb is ideally shaped to sanitise various body orifices, although it could use more girth and some texture.
Mounted on a linear drive motor?
NO and no. Get the brain out of the ditch.
I think I've experienced an itchiness to press a like button. Seems to be a common symptom when bigclive explores uvc lamps.
I got the explosive diarrhea, luckily I was already sitting on the throne
I've got a couple of these, sadly no wrappers, though. One came in a metal housing made for a school laboratory, with a small half-inch or so hole in the side to let the UV out. I believe they used it for experiments with gold leaf electroscopes.
02:50 Date code 8F comes back as June 1978. Lamp was made at Turnhout in Belgium. They also did a blacklight version, the TW6, but these seem ultra-rare, I only know of two collectors who have one (and neither of them will part with them grrr 😋)
I fear I can not begin to describe the lovecraftian nightmares that have just forcefully escaped my bowels. It's simply everywhere. No nook or cranny in my room was safe.
Please, record this data for scientific prosperity, and continue on in your research without me.
The horrors... The horrors
posterity - to do with the posterior.
"poster it" the new slang for explosive d.@@Lazmanarus
There will be a date code and factory code stamped on the base. The date code is a letter (A thru M skipping I) and a number. The letter is the month and the number is the ones digit of the year. Lamp was made in an odd decade if number first and an even decade if letter first. Factory code is probably a square with a vertical line in it (Turnhout, Belgium).
Would elaborate further but the explosive diarrhea launched me into low earth orbit. Fortunate to hit a Starlink satellite so I could post this. Have raging headache from impact tho...
I'll check that when I get back. Currently traveling.
That lamp is simply cool looking.
My reaction was a rush to the bathroom. Though I can't help thinking it was more to do with IBS and indeed happens most often without your assistance 🙂
4:00 I like the idea of a gigaohm resistor! What would the resistance be of those glass insulators which support cables hung from cross-country pylons?
The resistance of those insulators will depend on the amount of dirt on them. In some places they pressure wash them with distilled water.
Resistors of 1 Gohm are commercially available. If you ever take apart a large-diaphragm condenser microphone, you will probably find a 500M or 1G resistor between gate and source of the FET that amplifies the (very high impedance) output of the mic capsule. If the capsule is externally polarized (not an electret type), there will be a second similar-value resistor used to feed the backplate polarizing voltage to the capsule.
Somewhere I have a 1000MOhm (= 1 Gigaohm = 1 Jiggaohm, as doc Brown would say) vacuum resistor. Made in East-Germany. I bought it to test insulation testers. Although it is not the best as a calibration standard, because it has either 5 or 10% tolerance. I haven't seen it in years, but good to know I have it... somewhere. The seller even had 100 GOhm ones. Not sure what those are used for.
@@mrnmrn1 I think the STASI used those huge resistors to keep the truth from the German people.
@@mrnmrn1 A 100 GΩ resistance is actually a 4-bedroom apartment with two terminals not soldered to the extremities.
Sure would live to have one of those bulbs in my collection. Thats pretty darn cool.
While I didn’t feel any direct effect of the lamp I did exclaim “Better than factory!” a couple of times seemingly for no reason. It is a strange, but mostly repairable, world 😀👍
Solid.
In Finland it's sometimes said after a successful(-ish) repair: "Better than a new Russian!"
I exploded after watching the burning light
Clive, after viewing this on my eyepad, I got welders flash.
I wanted to experience the symptoms, so I glued my eyes to the TV (it's an LG OLED, so really good color reproduction) and watched the bulb part in a loop for 5 hours. My eyes do indeed hurt now. I think my corneas burned off onto the TV. Also my shirt turned red. But that may just be because everything looks red now.
Smell that Ozone!
...I fired up my ancient CRT (cathode ray tube) computer monitor to watch this video as I expected the thick front glass screen would absorb all the UV and I would be safe.
I'm OK, no nasty effects, but I could distinctly smell ozone coming from the back of the CRT monitor.
That's one powerful UV lamp you have there.
My imagination runs riot thinking of the resultant chaos if this video was ever shown to a crowd on a large video wall.
Might be treated to block the ozone-generating wavelength though.
At least if it's as advanced as modern UVC tubes made from big brands like Philips.
I think it's almost only the cheapy chinese tubes that produce ozone.
Clive is absolutely hilarious! He knows many people actually believe that displays can recreate dangerous wavelengths of light. No matter how much I try and educate people, they are stubborn in their ways of thought. If it were true, you could get a sun tan from putting a picture of the sun as your wallpaper.
In the early 90's, shortly after the Loma Prieta earthquake I moved from Seattle to San Francisco to help a friend open a restaurant. He needed a bar manager and I happened to be in that business at the time. I got to talking to the rest of the staff over the year I was there, and one question I typically asked over closing time shift drinks, was "what were you doing right before the big earthquake.....do you remember?" and quite a few answered "yeah, I had to go to the bathroom all of a sudden, and just when I sat down, the earthquake hit".
So a not insignificant percentage of the San Francisco Bay area was sitting on the toilet during the "event" and umm, both events were said to be explosive...
No UVC necessary.
Thought that was a tampon when I first saw it. WTH? Testing tampons are we? Hahaha!
What if my stool is itchy and my eyes are loose?
2:23 I had the third symptom a few hours before watching the video. I didn't know UVC effects were so strong that they could go back in time. Thanks for letting us know.
It's because of the high flux capacitance of the lamp.
You forgot the possibility of erectile dysfunction - it's all in the mind you know. 😛.
8F and the little “boxy thing” are actually Philips’ indicators of country and production dates! The box with the diagonal line suggests Holland, as stated on the bulb and 8F would suggest 1978/1998/2018 (because the number is before the letter) and F (being the 6th letter) meaning June!
Symptoms experienced from viewing UV-C through my computer monitor that is in no way capable of emitting UV-C: Snorting my coffee up my nose, swallowing it painfully, and laughing like a jackass. Thankfully, I managed not to give my keyboard a nasal coffee spray this time.
I shat myself when you said that UV-C can be trasmitted in a YT video :D
You are simply fantastic. I’ve been giggling like a kid and I am 55. The old phrase, “Can I push your stool back in “ Is a little used phrase now days. Much love Alex.
I still drop that line as often as possible.
Clive, I know you're joking. But I haven't slept more than three hours in a week. My eyes are as red and itchy as can be, and I've just had explosive diarrhea.
You should have put a warning in the title. Two days after watching this I had a migraine and it hurts when I pee, I rang my dominatrix and she assured me it was not due to her treatment of my stiff muscles.
Interesting cold cathode lamp. Never have seen such form factor and mixes of gasses. The neon gives a kind of incandescent look to the electrodes.
My eyes are itching, maybe because it's nearly midnight in south east Australia.
Unfortunately, no explosive diarrhea so far.
2:20 Explosive Diarrhea? I hope that nobody gets hurt! 🤣🤣🤣🤣
Thanks for showing us the lamp, preserving it's moment in RUclips time and see you bringing it back to life after all these years, even if the lamp didn't give 2 shits.
"Exciting! So.. Erm.. Let's turn it on and make it burn then!"
Had me in stitches 😂
thanks for the warnings. but it was too late, the radiation exposure caused a severe case of scribbling bored ape NFTs all over the place for a full day!
Within the 3 minute mark I was unfortunately locked in a rendezvous with the loo. Very power light, sir.
thank you for letting us see how beautiful this lighting looks without giving us explosive diarrhoea or anything, clive. what a lovely cyan!
For some reason I shit my pants when I saw that light lit up 🤔
We used to use these in safety glass cabinets for sterilization. If you bypass the safety switch in the door you can stare into the bulb until you see Lemmy. I now use these in all my lamps. Jimi Hendrix says hi. Uvc is awesome.
"and your stool will remain firm and under control"
my IBS: "SPEAK FOR YOURSELF, BUCKO. IM ABOUT TO CAUSE PROBLEMS ON PURPOSE"
I can remember buying this exact same bulb for use for erasing EPROMs. From memory 20 minutes seemed to be long enough exposure to erase an EPROM