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RE: Try some 12AY7's.

Posted by Cory M. (A) on November 2, 2014 at 14:31:28

In Reply to: RE: Try some 12AY7's. posted by gradEHoser on November 2, 2014 at 13:21:32:

The worst that could happen is that you wouldn't like the sound (I doubt it, though).

I can say that with confidence, because I just looked over the data sheets. 12.6v @ .15a series/ 6.3v @ .3a heaters on both, same pinout of course, and all other important aspects close. The 12AT7 can take a higher plate voltage, but your CD output stage won't be running them that hot. Now, I wouldn't swap them for 12AX7's (although guitar guys do it all the time).

I've tried all kinds of 12AT7's, including the really nice ones, and the 'AY's are the ones that stayed. My application is for the first gain stage of an integrated amp, so of course YMMV.

I do have an extra pair here, I could send them to you if you'd like to try them out.




Cory

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