"I wouldn't want to be in the room with that, let's turn it up some more" classic photon.

_looks at radiation meter_ "That isn't worth worrying about, so we'll up it a little more!" That's why I love Photonicinduction.

"We don't want to be in the room with that. Let's turn it up a bit more."

loved those sparks, fascinating educational video time 5:07pm Sydney...almost dinner time, them x rays made me hungry

How is your brother Hammond doing these days?

KITTY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

“Don’t wanna be in the room with too much of that. Let’s turn it up a bit more”

i can feel the radiation from here

3:02 "Do Not Attempt This Yourself!" Aye, mate. I'll just put my GU81 Transmitter Tube back in its box, then!

You sir are certifiably mad! Definitely a subscriber for life! I wish I lived close enough to visit but not quite in the flat next door. Your videos allow me to see all the experiments I would enjoy myself less the expense and potential of acquiring an angry bout of tackle cancer. Keep up the great work.

I'm so glad you do these types of things for the rest of us without the necessary training//resources to do it safely. Stay safe, keep recording.

"Wouldn't want to be in a room with that.... Let's turn it up a bit more!"

I love your videos. Please don't ever stop making them.

i wonder what his electric bill looks like ?

Really cool shot at the end :) you should experiment with shots and angles like this in your new content a bit more. A long time fan!

That was wild I have to admit bringing these old things back to life... Watching the electronic arc. Another you for a great Holloween display.. with the arc jumping was really interesting ...

you need to have some nice magnetron experiments...see if you can light the neighbors roof on fire from your lab ?

Please come back soon Andy. I really miss your videos

I miss this, I mean I wouldn't want to be his neighbour, but I miss seeing these experiments

Great video. I thought that more X-rays were emitted when the filament heater is turned on.

Next up: Giving my neighbors cancer with gamma rays.

Wait, so why does the radiation level stay high even after the x-ray producing apparatus is switched off?

Good advise Photon! And beautiful images that you have made with your rotating camera!

You make Tesla smile!.

Watching out for xrays yet still smoking there at the end :,D

The 1B3 tube in old TV sets would emit x rays it was housed in a metal box.

that clip at the end was just awesome :D

Loving the vids, keep up the good work

This may seem a bit late, but for anyone who is watching this in the future, in AUSTRALIA the legal dose for an un-licenced person is 25.0uSv/h with an allowance for up to 1mSv per year. And yes I am a licenced Industrial Radiography Technician, I'm not just spitting numbers out the top of my head.

Brilliant!!! Really miss you here man.

You're an inspiration to me, Photon!!!!

I watched from the very beginning back in the days with the geek group and all that drama. Always enjoyed the videos!

It's great that you are actually doing what most of us likeminded people have at some time thought about...👍🏼😂 the fact your doing it is actually saving lives...😂😂😂👍🏼👍🏼👍🏼👍🏼

Wow it's 11 pm here, I recall you being 5 hours ahead of me. 4 am? lol Now that's devotion!

i spent a day in Chernobyl and pripyat in 2008. the geiger counter read 5000 (normal background .5-10) and i wasnt worried. being in a room with them wouldnt worry me either. long term exposure is what you need to worry about if i remember correctly...

You sir are changing the world.

Cool to experiment, BUT A geiger counter doesn't detect X-Rays!! Totally different frequency. There is a reason why radiographers use fluorescing screens.. because they DO detect x-rays -- big time!! Yes I was an x-ray engineer. FFS get yourself some eye protection as you are probably already well on the way to cataracts.. And by the way you need 100K to 150KV, 200K is too much, the x-rays will just pass through everything. Medical x-ray tubes use an aluminium sheet to protect you from the low 50KV stuff which is seriously damaging to eyes and skin. :-)

Absolutely loved the vid - very nice, and as a bonus - NO X-rays from high voltage. Keep the experiments coming!

You should get a pressurized integrating ion chamber it will detected the lower energy xrays and the pulses as well. So that geiger counter would undercount exposures.

Very nice....what a nice dolly turning around !

Beautiful,beautiful,beautiful

id be fekin lost without ur vids by the way!

Good to see you again, photon.

you guys are awesome!

I don't care how late it is, if I see a new video I pounce lol

The old colour crt in TVs had X-ray protection circuit as the tube contained a metal shadow mask and a 25kv final anode voltage. If the final anode voltage is too high the electrons have too much energy and hitting the shadow mask creates X-rays. It's not the vacuum causing the X-rays rather the high energy electrons hitting metal.

This answers a alot of questions. thank you

Getting there. Electrons can't move at c (they have mass, which would cause all sorts of physics to break), but electric fields can. This is arguably the most counterintuitive thing in basic physics, but while electrons can't move at c, electric fields can. The best way to think of this is as if the electrons can see each other. When one electron sees the other start moving, then the observing electron starts moving. (contd)

Thanks for another fantastic vid Photon. We like x-rays lol

Cool demo! ...and those little GQ Geiger-counters are cool, too... I bought one of their GMC320+ V5's .... awesome sets.

congratulations, your awesome choice of topics, combined with a wonderful, no bullshylkl I'mt approach to themm has one you a lifetime subscriber, and a big pile of likes.

Neighbour’s house: [lights dim] [tv switches channels 15 times] [Wife’s hair stands on end] Neighbour: oh ffs

9.70 u/sv might seem high but that's about how high the radiation is when you fly in an airplane at cruising altitude. It's really not dangerous at all even over long periods.

Anyone watching this in lockdown?

Experiência excelente. Rio RJ Brasil

I just got up. lol I've been in bed from an injury since about 1pm. It's about 11:30pm now. Interesting video, Photon!

i love your experiments..!👍

"Like this GU-81.." hahahaha Classic Photon.

This is the most gmc-300 user moment I’ve ever seen

Maybe you can get xrays if you use heavy metal with high fusion point as anode and cathode, such as tungsten, iridium or molibdenium, and voltages around 100kV. That's what is used in xray tubes. A typical chest xray uses 120kV and 20mA.

hehe now that is a classic, i need to do that too.

you are the nutty professor mate

Damn you got some kewl toys man

Pretty sure you need to power the tube heater / cathode before you'll get any serious x-ray emission. It's streams of highly accelerated electrons striking the tube structures that produce the x-rays. With a cold cathode, the electron supply is limited to free electrons in the cathode materials. Fire up the heater and I suspect things will look very different.

Television tubes already have high voltage and that is why the glass is lead lined.

3 videos in one day, is it Christmas already?

Hahaha Phonton i saw ya in Discovery yesterday I try everything i can at home!

While I would agree with most of the comments on here about how this is likely a malfunction in the Geiger, it's worth taking into account that the Geiger was measuring steady higher readings of X-rays which each coincided with an increase in voltage to each tesla coil on each attempt. Malfunctions, or spontaneous readings in the Geiger due to large emf would show up as jumps or spikes and would likely have inconclusive readings rather then the steady output variables which can be seen. The only way to rule out that emf was indeed causing the reading would be to measure its strength and place the meter further away. But really though, chances are X-rays were indeed produced. Be safe out there ! Leaving the room did little to help you btw... Unless your walls are thick concrete or some sort of reflective metal. Given the reading on the Geiger was relatively low and the period you were exposed wasn't that long you should be okay... But perhaps a insulated faraday cage around your next test, set it up to encase your tesla coils, put the Geiger inside with your camera in a non reflective insulator so you can avoid further harming your cells in future experiments.

They really missed an opportunity by making the buttons separate and not making them be the four parts of the radiation symbol on that Geiger counter.

You would need to apply power to the klystron for it to emit x band radiation, connect the heater circuit.

"Just the good old boys, never mean'in no harm." How, How did you do that last shot?!? :o)

I'm guessing the most important factor in this case was that the beam was not focused, rather than the wall, if it's a wooden walls at least.

what your detecting is most likely loose beta particles (electrons) from the high voltage.

One thing to be aware of is the radiation pattern from overdriving vacuum tubes (like you are) can be extremely uneven. As such, you may get artificially low readings because the geiger counter is not in a hot-spot of the beam. There are some cool photos around the internet of people measuring the emission patters of various vacuum tubes with phosphorescent screen, and long exposure photography.

Amazing

Ok... here is a question for you. In my youth... about 1975 or so... we took a color picture tube and placed it on a metal plate (ground plane), then connected the output of a 15,000v 60mA neon transformer to the side port... with a chain suspended from insulators about 3 inches (7.6cm) above the tube, and connected to the other side of the neon transformer. (Basically a Leyden jar from hell) We fed it with 120vac run through diodes to produce pulsed DC. It would charge up a bit, then make lightning. Just how stupid were we on that? Didn't think about X-Rays... I was 15 at the time.

I remember a shoe shop having an X ray machine that you could stand with your feet in to see how well the shoes fitted.

It might be useful if it has a dosimeter mode to get a total of the detected rays.

Wow cool vid. I wonder if there would be more X-rays using DC and maybe the filament heated up. But anyway, good video about what can produce X-rays and what doesn't.

that looks so surreal

I got plenty of x-rays from a 1B3 with a pinhole shorting the cathode winding to ground through the flyback core..

I feel like I need a lead apron and helmet just to watch this lol

Excellent. It just so happens that I plan to get a cheap small Geiger counter as I find that kind of thing interesting.

not that lamp you use. Soviet GP-5 lamp to give more X-ray than GU-81

The number at 4:30 is about the same level of x-rays that one receives in dental radiographs. :)

I'm holding my phone at armes length while watching this. Hopefully that should help.

At 4:08 there's actually an x-ray flash on the camera.

cool vid as ever glad i subscribed to ya

Great vid! I've wondered this for years when watching you with those HV transformers :) the state of matter vid springs to mind.. I wonder if a bare CCD sensor could "view" xrays?

at 5:03 is about what you would expect from a typical CT scan. X rays only travel in a straight line though, so the readings would possibly be lower in other parts of the room.

Nice Toys!

I am not impressed until the air in the room begins to glow like a neon sign from the radiation.

Great vid

This video is about to blow up.

"Yes you probably wouldnt want to keep doing that"- keeps doing it XD

Ah yes, this is definitely an interesting one, Mr. Photon. Some valid safety points raised in this vid! Of all the times you've zapped CRTs, like you did with the "CRT overdrive" video, I do wonder if you've ever wondered if at the end of all that, if you glow in the dark a bit? :D ( Quote from that vid: "Mmmm, its fizzin' a bit at the back!" ) ABSOLUTE LMAO! I did laugh in this vid when at 1:44 you magically changed that whopping great crimp lug into a lightbulb! :D Photon Magic! :D -BBD.

I would like to see if you could charge a cell phone if you put it between them high voltage coils that would be awesome thanks love your videos

That authorities allow you having that stuff at home, next to neighbours.

If X rays were generated for real, camera would go crazy and crash. Also efficiency is only about 1% so you have to put quite a lot of power to get something visible.

We Want MORE!! :)