That's a great price, but I would be a little careful. I have Lamm ML-1s which use those tubes, and recently have had problems with one of the amps which required the replacement of the tubes. One of the replacement tubes blew within a week. Apparently Lamm, which insists on replacing the tubes themselves, is experiencing a very high failure rate (almost 50%) on the current crop of these tubes coming out of Russia. Lamm and BAT are pretty good about testing their tubes; perhaps Mr. Welsh or the ASL importer is as well, you might inquire with them about that. I'm told that Lamm is burning the tubes in for much longer periods now, because the defective tubes aren't blowing right away, it seems to take some time.
