Thread: SparkChambers
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Old 26th May 2019, 7:11 pm   #29
duncanlowe
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Join Date: Jan 2016
Location: Stafford, Staffs. UK.
Posts: 2,529
Default Re: SparkChambers

Quote:
Originally Posted by TonyDuell View Post

As for helium diffusing out, this was certainly a problem with HeNe laser tubes when I was at school. They would lose the helium and stop working.
Ah that would explain why a couple I had stopped working after a while.
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