From what I understand, the way it works with a 25 year half life, is that after 12.5 years the tubes are half as bright as they were new. After 6.25 more years they will again be half as bright as they were after 12.5 years. And so on. So they start to get pretty dim pretty fast after the first 12 years.jbglock wrote: ↑June 14th, 2020, 2:18 pm25 years? My experience is way less than 1/5. Great price though!thelonedoc wrote:If they are actually tritium tubes it is worth buying these watches just to harvest the tubes for a project.
I was also intrigued as to whether quartz tubes might actually besome type of alternative to tritium. Is it possible that this is another technology that produces the same effect? If so I imagine that it could possibly be superior and not suffer the 25 year half life of tritium tubes.
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Edit*
I looked it up, and I was partly right and partly wrong.
The useful life of the tubes is around 25 years and the half life is 12.5
I had the concept right, but the terminology wrong.