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Old 10-03-2009, 01:50 AM
bandersen's Avatar
bandersen bandersen is offline
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Join Date: Mar 2009
Location: Chicago, IL
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Here's a tip if you find a set that hasn't been powered up in a long time.
This 10BP4 showed 0 emission at first. That's pretty much how all my 10BP4s have tested at first. Let them run for an hour at least before considering them dead or weak. Running for a while @7 V can help too. Try this before trying to rejuvenate them. Sitting around for a few decades seems to put them to sleep.

Here's this one after 30 min @. After ran hour it was into the green

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Last edited by bandersen; 10-03-2009 at 02:33 AM.
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