When do you replace your tubes ?

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muddda

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Hey Guys,

When and how do you determine when its time to change your tubes ?

I know Paul from PS audio says every year (but then again, thats Paul.)

They say power tubes 2500h, and pre-amp tubes every 10,000 hours.

Should I listen to when they sound bad ? but how will I know if the sound is bad ?





 
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