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6550/6H30 hazardous in PH8/Ref Phono 2?
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03-28-2012, 10:20 PM
BillK
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Join Date: Jan 2011
Location: Colorado
Posts: 961
How long do the power supply tubes typically last?
I know signal path tubes are usually good for 5000 - 10,000 hours, but at least in amp applications tubes like the 6550 are usually only good for about 2500.
BillK
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