Hi, I just re-tubed my Cary V12 and wondered if like other electonic components (cables, cartridges, etc.), do tubes have a break-in period? And if so how long till they sound their best?
They do, and I burn in new power tubes for 48 hours and then check the bias at 48 hours one more time because they seem to settle in at this point and the drift after that is minimal, at least for the KT77s/El34s I am using.
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