Most aren't. They replaced thorium with cerium because it's cheaper, not because it's non-radioactive. Some still use thorium though, and they're actually much better. They give a brighter, whiter light.
you can find those everywhere in the net, it's quite basic. High voltage generation and an amplifier, capacitively coupled. The problem is: where to get the damn tube?
So THAT'S why my hamsters used to mutate when I started keeping the camping gear next to the cage!
joesmoe71 9 months ago
is that geiger counter screaming for mercy ? or what is it...
DeltaLima2 3 years ago
Coleman uses nonradioactive materials now.
Samexplode 3 years ago
AWESOME!!
CassetteMaster 3 years ago
So a gas mantle is like a hat? The gas heats the hat and it becomes incandescent?
vmelkon 3 years ago
yeah they are i just bought some and they are radioactive
taliban0king 4 years ago
is that a bay i hear, better keep it away man, or is it a dog?
POYTSAVLOS 4 years ago
Gas Mantles are not radioactive anymore :(
beestube76 4 years ago
Most aren't. They replaced thorium with cerium because it's cheaper, not because it's non-radioactive. Some still use thorium though, and they're actually much better. They give a brighter, whiter light.
DrBuzz0 4 years ago
time to go shopping with my trusty geiger counter....
conrad2468 3 years ago
mental note,
don't keep gas mantles in my pants pockets anymore.
muddywaja 4 years ago
Hi, you have the schematics of the counter?
chivux 4 years ago
you can find those everywhere in the net, it's quite basic. High voltage generation and an amplifier, capacitively coupled. The problem is: where to get the damn tube?
hboy007 4 years ago
Hi!, i already buy a geiger counter (CD-V-700 6a) and works very well, i want to buil a geiger tube with mica window, :)
chivux 4 years ago
Nice video, look at my radioactive video.
nitrex 4 years ago
LOL - Oooh look... ANOTHER mantle !!!! And another....!!!
Great project !! Good demonstration. Many people do not realise that gas mantles are radioactive.
RoadRunnerLaser 4 years ago