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In Reply to: RE: JJ-Tesla 12au7 Long Plates in VAC PA80/80? posted by Eli Duttman on June 24, 2009 at 21:21:52:
I don't know if this experience is shared by others, but it's my perception that old-stock 12AU7s, whatever shortcomings they may have, tend to last a LONG time. 12AX7s, again, based only on what I've seen, tend to wear out faster, though I can't claim to understand why.
David
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- RE: JJ-Tesla 12au7 Long Plates in VAC PA80/80? - Thermionic27609 08:03:15 06/26/09 (0)