In Reply to: Tektronix 12AT7 on Ebay posted by rohrenman on March 20, 2007 at 17:23:22:
I have used 12AT7 from several manufacturers, all USA made and the best of them were Sylvania 6201 (12AT7WA)although I did find one of those 6201 horridly microphonic but it was the exception. I still have them and they measure close to new in my emission tester after several hundred hours, if this is any indication these things will last a long time. And BTW, they sound really good as input tubes for power amps and in line amps.
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- Re: Tektronix 12AT7 on Ebay - ojd 16:09:43 03/21/07 (0)