HOLY COW! THAT'S AN AWESOME COLLECTION!! :D I've yet to get any radium in my collection, as it's more uranium based, but at 7:00 that's the geiger muller tube saturating, which means that it's very, very high. Not in the immediately dangerous levels though! :D DEFINITELY DON'T EAT IT THOUGH!!! That would really mess you up! D:

i like all old British made vehicles 👍👍🇬🇧🇬🇧🏍️🏍️

This is so dangerous, especially with the glsss off that clock.

I got an old wind up watch that hits 8000+ cpm on my GMC meter

Would any of the kits work for luming dials today, or are they all pre-mixed (and thus degraded)?

When I bought my first real motorcycle, the dealer had new Norton Atlases for $975. That was in 1968, or maybe '69. I bought an N15 for $1250 but I think the Atlas would have been the better choice.

Nice ride!

Ducati T-shirt?

Beautifully restored

Has that got a Commando front end?? I didn't think the Atlas came out with a front disc!

Nice bike dude

WHOAH 😮

Do you have an eBay shop you sell from? I’m very interested seeing what you decide to let go. I don’t collect watches but I do collect anything radioactive

Wow, 100k cpm!😱 Lovely🤓

❤❤❤❤ wow love 💝

Wow! That is awesome! I love that kit at the end! That's the radium-226 (likely radium-226 sulfate-as a compound, being the active ingredient) that you mix with the copper-activated zinc sulfide! That's why your G-M counter was over-saturated, due to the "fold-back effect." You get right up to it, and the counts drop significantly. I have a few recommendations: 1: I'd get a much better G-M counter, like a Ludlum Model 3, 12, or 14C, with a "pancake" type detector tube, like the 44-7 probe. I'd also look for and alpha particle scintillation probe for said Ludlum Model 3, 12, 14C, which you can use various probes with the same ratemeter G-M counter. Keep the probes facing downward, and avoid touching these items; you don't want to contaminate your radiation detection instruments. These instruments are pricy, but far superior! Used ones are cheaper, but make sure that they work, and that they've been recently calibrated! 2: Radon-222 + decay daughters, and also radium-226 dust mitigation is a good idea. Simply keeping those items sealed inside multiple plastic bags and/or with glass jars will mitigate contamination, especially for the ones that have missing crystals and glass faces. Putting activated charcoal/carbon inside said sealed containers will also "trap" much of the radium-226 decay progeny. The activated charcoal/carbon will become indirectly and stronly radioactive. Glass is also very good at stopping hard beta radiation. The radiation is less of a hazard than the actual radioactive material itself. Inhalation is the worst, followed by ingestion, and lastly, external exposure. Internal exposure is _far_ more hazardous than external exposure. 3: Invest in a 365 nm UV flashlight. This will work much better than the common 395 nm UV flashlight. The _less_ radioactive that the radium-226-lume is-the _longer_ and _brighter_ it will glow. The _more_ radioactive that the radium-226-lume is-the _shorter_ and _dimmer_ it will glow. Old military self-luminous items are often _much_ hotter than commercial items. And always, don't shine UV light directly into your eyes. Also, as a tip, check out decay chains and the specific activity of radioactive isotopes/radionuclides. Radium-226 has a half-life of 1600 years; 1 _gram_ of it = 1 _curie._ 1 _microgram_ = 1 _microcurie._ The amount/activity that these items have, will likely be in the tens of nanograms up to the tens of micrograms, at least. I know this reply is long. However, it should definitely help! Thank you for sharing this video! That's a beautiful radium-226-lumed collection!

Psssst. Hey... Buddy... You wanna buy a WATCH?

that's insane, are you selling any of it though?

Wait, you go around wearing these watches?!?!?! A CPM of 100 or less is fine, but I wouldn't want to keep anything over 1K CPM near me for more than a few minutes if possible.

That clock needs glass. Loose radium is a recipe for disaster. Everything nearby could get contaminated by daughter isotopes at that level of radium used, not to mention the radon it puts off.

That’s awesome. If you invest in a more expensive detector that’s more sensitive those numbers will go WAY up (especially that clock).

REPLICA

Is there a proper way of disposing watches that have radium? Getting into watch repair as a hobby.

FU@K YOUR REPLICA

Replica

Hi Tom...I have one of these units, and it's missing the crystals as well. I'm really interested in how you put those solid state oscillators in. I'd like to be able to bring mine to life. Please let me know if you'd be willing to show us that!

4:40 Please tell me that's a joke, or my limited understanding of radiation is just causing me to worry. Is that a Radium dial?

Very cool...VERY cool.

Are you selling any of it?

Man your crazy, working with this amount of radium with nothing but a 100$ Geiger owww, get a contamination meter also a radon device would be cool i cant imagine the radon level in your place, also you should try to get a higher range counter, scintillator are nice you really get the dosage to see the risk

Oh man this is so cool but you should absolutely have a better device for checking for contamination

Are those samples dangerous at all to be around? How do you move them?

The one thing that does concern me is the unit going negative. Either it isn't zeroed properly or you have something failing. Maybe a defective resistor or capacitor.

Nice sensitive unit. Did you need to replace the capacitors and did you have to replace the scintillation crystal?

Working on radium devices with nothing but the world's cheapest geiger counter is such a bad idea... You could get an adequate device for contamination sweeps for the price of just a few watches.

Thanks for sharing. I followed this link from your recent Facebook posting in the Vintage Electronic Test Equipment.

Hello i have a really old key wind its a ladies Hunters case i lost the key but am interested in seeing if you know much about these watches im in search of more information about how old mime is

425' to the bottom. It drops into level 3.

keen

I have a portable one that I’ve been trying to fix but can’t find anything about it, model no. 80019E1

Super fun to play with a bucket of snall screws and washers. Its hillarious. Also the pezioelectric transducers are about 5x more sensitive than than the magnetostrictive sensor and the amp in the probe head. 🤓❤

Do you have the coordinates for this spot? I've always wanted to check it out

It's way deeper than I thought.

Tom, can one enter any frequency and generate multiples from it?

Very cool.

427a volt meter on 18650. Did you use 5 or 6 cells

The counter is great looking

What a beautiful stack of equipment... I've got a growing collection of such items as well... There's something really lovely and beautiful about old test equipment. On the bench right behind me is a 5245L counter that I make regular use of. If I had more space, I'd be piling more stuff up and working on continued restoration and display of this equipment. Someday..

Great stuff! 👍

Very cool.