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VFD failure?
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frank
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VFD failure?
wrote:
Is the DC bias on the filament a nice flat line on the scope ?
yes.
Looking better, some segments all over the places are dimmer than the
others. Looks like this display is at the end of its useful life.
I can't tell if the dim segments were the most used or most unused ones.
Probably a lot depends on how the previous owner(s) used this thing.
Frank
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