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7jp4 VS 7vp1
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02-09-2018, 03:53 PM
Tom9589
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Join Date: Jan 2013
Location: Stone Mountain, GA
Posts: 472
The P7 phosphor is the one with the long decay time. I once bought a "test" tube from Olson Electronics (remember them?) with a P7 phosphor. It worked great and didn't need an ion trap.
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