I strongly suggest that all ML owners who own (or wish to own someday) tubed equipment, read this week's Stereophile online (stereophile.com). The largest tube manufacturer in the world it seems, is located in Saratov, Russia. They manufacture Sovtek, TungSol, Electro Harmonic, etc., etc. Almost all the tubed production of ARC, BAT Conrad Johnson, McIntosh, and others, use these valves. Because the factory was acquired by an American (Mike Matthews) some years ago, it has been under attack by Russian corporate raiders. There are some suggestions in Stereophile's piece about contacting certain officials for the invocation of justice on Mr. Matthew's part. I think that this is at least worth a read. Our tube future might be in jeopardy.