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Can't agree

64.131.21.214

3 to 4 years tube life is common in my experience, even ratty old
used up Bugle Boys last more than a year. That's in a cross section
of preamps as well.

I'm sure some preamps run tubes hotter, but even if the number is
more like 2 years it's harldy that big a deal compared to other
costs in hifi. If a preamp burns through a set of tubes in 6 months
it's time to get a different preamp.

RFG


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