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Author Topic: Small capsule on T8 fluorescent cathode shields ?  (Read 2659 times)
Ash
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Small capsule on T8 fluorescent cathode shields ? « on: June 19, 2011, 05:45:16 PM » Author: Ash
In some T8 fluorescents i have seen small glass capsule attached to the cathode shield inside the tube. What is it for ?
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Zelandeth
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Re: Small capsule on T8 fluorescent cathode shields ? « Reply #1 on: June 19, 2011, 06:36:40 PM » Author: Zelandeth
This capsule is what contains the mercury dose.  It's broken (usually by RF heating I believe) during manufacture after the lamp has been sealed.
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