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RE: 12ax7 for ARC SP16

Posted by kevc on October 25, 2011 at 05:01:48:
no problem. Had mine replaced after about 8 years or so after one of the tubes arced and took out a couple of resistors. But they should last 2000 to 3000 hours or so. Make sure you bias the VS110 to 65mv. Tempting to get the KT-120 as well for $400 or so for practically a new amp.