Sylvania JAN 12av7 Black Plates Posted on April 23, 2012 by tubemaze (3 votes, average: 5.00 out of 5)Loading...No reviews found on the web. See our reviews.Share this post:
Another great tube. I’m getting to the point where I’m ready to give up testing 12at7 family 🙂 The majority of them sound as good as Telefunken. I decided to try 12av7 now in place of 12at7. It has a much higher mutual conductance which allows it to pump more current, so I thought what the heck, it should theoretically give a bit more bass slam. It didn’t lead to that, but it was a very unique tube. The sound stage expended significantly leaving depth the same. That was a very interesting effect. The music planed way outside of my speakers leaving center well defined. A must try tube – it might just bring you what you’ve been looking for. And all of that joy for just $3-4 a tube!!!!!!!!!!