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#1
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I think that the average life of a CRT tube is approximately 8000 hours
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#2
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I think that's what you can expect out of most non-power handling tubes, about 10,000 hours. The currents from CRT cathodes are fairly low. Comparable if not lower than what a tube in the IF strip would see.
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#3
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Quote:
actually, it's the current density required to get a sharp spot that determines cathode life, not the total current per se. |
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