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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: small signal tubes? posted by Quiet Earth on March 11, 2007 at 21:01:58:
Mullard used to make premium quality tubes they called "10,000 Hour" tubes. That might give you some perspective on anticipated life.To say the tubes can last 5 years is a lot different than saying the unit can run continuously for 5 years - which is 45,000 hours or so.
Putting the power switch in the back is sometimes done because it reduces the amount of AC carrying wiring in the unit, potentially reducing noise/hum. I am not aware of any tube pre or DAC maker that recommends it be on all the time - although I'm sure I don't know EVERY one made...
There is some MTBF data out there, I've seen it, but how relevant it is (or where to find it!) I'm not sure of.
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Follow Ups
- Re: small signal tubes? - Jim McShane 06:29:32 03/12/07 (2)
- Re: small signal tubes? - elflow 19:05:05 03/12/07 (0)
- Thanks for that information Jim - Quiet Earth 10:48:16 03/12/07 (0)
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