Found in vintage market soviet ball aviation compass. Can they leak radium dust or alpha particles when cover is not damaged? what amounts of radium paint can GMC 300E plus detect?
The thing that you pump air into the gas chamber on mine is cracked, gasket is good but I don't see a leather thing on the bottom of the pump looks like a spark plug pin..amd I'm not understanding what's you put inside pump thing that screws off or the catcher thing at the bottom of the blow torch barrel
Thanks for the video. I found one at an estate sale and figured I could create some awesome mischief with this thing but wasn't sure how to use it. Do now!
The reason for pre-heating the valve assembly,is to VAPORIZE. THE FUEL IN ORDER TO GET THAT NICE BLUE HOT FLAME!! SAME PRINCIPAL USED IN THE OLD COLEMAN LANTERNS. THE VERY FIRST ONES,HAD A PREHEAT CUP,AT THE BOTTOM OF THE "GENERATOR" TO HEAT FUEL( KEROSENE) TO THE VAPOR POINT SO IT WOULD BURN RIGHT. The later style ( instant start) didn't need the preheat cup, because the little hole in the tip of the generator was even smaller creating a FINER MIST OF FUEL, IN ORDER TO OPERATE CORRECT THE HEAT STILL VAPORIZES THE FUEL,THATS WHY THEY BURN SO WELL AND GO ALONG WAY ON A TANK OF FUEL!! Some of the torches,had another small valve below the main one,to open and let fuel DRIP DOWN INTO THE "PRE-HEAT" PAN,, EITHER WAY,THEY MUST BE PREHEATED TO GET THE FUEL TO A VAPOR POINT. AND TO THIS DAY,THEY ARE JUST AS USEFUL AS THEY WERE WHEN NEW!! GREAT FOR HEATING UP RUSTED BOLTS, OR PIPES ETC. GOOD FOR STARTING BON FIRE'S, THE LEATHER CUP'S IS THE SAME AS USED IN COLEMAN LANTERNS,AND ARE WIDELY AVAILABLE ON THE INTERNET NOW! ( KEEP IT SATURATED WITH OIL).BE SURE ON THE ONES THAT HAVE THE BOTTOM TANK PLUG IN THEM THAT IT SEALS GOOD,IF YOU GET A LITTLE LEAKAGE AT THE VALVE, DON'T PANIC! TIGHTEN THE PACKING NUT UP UNTIL IT STOPS! REMEMBER THE FUEL IS PRESSURIZED SO IT CANNOT "BACK FEED" ,IF THE CAP DON'T SEAL GOOD MAKE A LEATHER SEAL,OR GET AN O-RING AND PUT ON IT.
Hands down the most over extreme RU-vid title I've ever seen. opening that beta window throws our dose rate. keep the beta close and then take the reading for a more accurate body dosage
Battery packs were shot when I took ownership. Separated the battery pack case with a utility knife or something similar. Generic 12volt square cells inside if i recall.
Actually two 6v cells connected in series to create 12 volts, I was going to carefully separate it with a knife as well and then it fell off the shelf I had it on and broke a corner off exposing the batteries so I just went ahead and pried the rest of the bottom off
Some brands and models actually did fill from the plug at the bottom. Others don't even have a hole or plug at the bottom and were designed to be filled by removing the pump.
Nice informative video. At first I thought, "he's sure taking his time with this video" but then after seeing the result from your meter, I changed that opinion. I think the care and deliberate approach you took was warranted. Another warning about Radium; as it emits alpha rays, those atoms become Radon gas. That is very dangerous in the lungs and a major cause of lung cancer, right behind cigarettes. Since there is part of the paint that is not covered by anything, I would put that compass in a container far away from you or anyone else. It might even be a good idea to vent that container outside the house periodically to disperse the dangerous Radon gas. Thanks for your video! Good luck with your collecting and stay safe.
I just found one of these compasses in a box in my loft having been given it as a kid 30 years ago………..after watching this I think I’ll be putting it back upinto the loft 😮
Wait till you come across a ww2 turn and bank indicator. It will saturate the tube on that smaller counter and give the same reaction on your eberline... from gamma alone.
Measuring a source with the detector probe up against it gives a reading that DOES NOT represent full body exposure. The field of radiation is within a small radius of the source. Moving the probe away from it brings into play the inverse square law. Such a small radium source will not expose a person to full body radiation.
Sur can you please tell me if they still use any kind of radio active material in them today because I have a cheep military Chinese knock off it folds out and has a wire in a slot that you look through to line up on I use it when I go hunting and am pretty worried about being exposed thanks for the video..
I have on of these compasses. Ohhh well, I have an agonzing, painful and horrible death as a result of multiple cancers through my body. I am 54 now but will I live to see 55? Still could be worse, I could get mauled by a bull, dog or wild boar. Then again, I could get struck by lightning, hitt by a falling tree or a slate coming off a roof. OHH my God, I have welded galv steel, mild steel and aluminium so maybe I inhaled fumes and they will kill me instead? Are you one of the snowflake scientists that promote the apocolyptic ending of mankind due to Covid-19? No wonder people live in abject fear of dying!. My dad, grandad and grandmother died of cancer. the latter never smoked, probably never looked at the compass (It belonged to my grandad) and I know many people that have, have survived and died of cancer that don't have these compasses. So many ways how people can die and I watch this video and think, for fu*£s sake I hope this guy never gets in government or a place of influence!
Check out the in-verse square law which is a law stating that the intensity of an effect such as illumination or gravitational force even radioactivity changes in inverse proportion to the square of the distance from the source. So your not in to much danger just don't try to eat it. And don't keep it in your pocket or sleep with it. The biggest danger is the radon and her daughter's.
Hey stay away sturgeon I'm trying to find out where do you buy that can a fuel because I'm going to buy one of those antique torches and I don't want to use gasoline if I have to I will but where can I buy that white fuel thank you tim Jackson 397 at gmail.com I hope you get this message
Thanks bro! I just purchased this time of torch for wood work. First time I used one. So I don't blow my arse up! I almost used gasoline. Much appreciated the info.
Takes a steel plate 3/4" thick for 50% attenuation of the gammas highest energy peak (over 5% percent of the gamma emissions of bismuth 214, having 2.2 MeV) . The bismuth decay gammas are the most energetic in Ra226 chain. Some betas have more energy but absorbed faster by shielding. These beta braking radiation also may have comparable energies.
That's a nice, spicy compass! I might just end up getting one, since I collect radioactive sources. You're supposed to use *CPM* with the beta shield _open_ on a CD V-700. You're supposed to use *mR/hr* with the beta shield _closed_ on a CD V-700. Otherwise, you're going to get a measurement that is much higher in reality and also energy inaccurate. These are calibrated to a beta + gamma source, with the beta particles blocked (gamma only). These units were usually calibrated with Co-60. Cs-137 is now the most common radionuclide for calibration nowadays. Also, I wouldn't be concerned about exposure from a source like this, as long as it's not internal. _If_ this were a source from, say, a hot cell or a teletherapy source for example, then I'd be concerned. Other than that, this video has nice quality!
Cool! I have two of these now! The 2nd one is a little hotter, too. And in better shape. The Ra-226 lume is darker, so that's an indication that it has become more self-irradiated. Both of them _barely_ glow in the pitch dark now. With my Inspector USB Geiger-Müller counter, I get > 370,000 CPM at about 1 in. That's about as high as it will go before it overflows. It's the fold-back effect, but the Inspector USB has anti-saturation. The hottest Ra-226 source I have is a meter face from a Soviet ДП-63-А dosimeter (ca. 1964). As a bonus, it has a hot Sr-90 test source inside!
The good thing about these is that the radium lume on these were coated over with a lacquer to prevent them from flaking or getting wet. They have to be. They're war instruments. They have to survive shock, scratches, and harsh climates. I'll be getting my second one soon! I collect radioactive sources! I've been doing it for years! It's a fascinating hobby!
