It may read like a page out of a classic corporate crime thriller, but the threat is real. ExpoPul, a company whose factory in Saratov, Russia manufactures vacuum tubes under the brand names Sovtek, Electro-Harmonix, Tungsol, Svetlana, Mullard, and others—tubes that include the 6H30 "super tube"—is threatened by one of the many Russian corporate "raiders" who are increasingly stealing businesses from their rightful owners. If the threatened hostile takeover proves successful, two-thirds of the world's supply of vacuum tubes—tubes vital to the sound of audiophile gear and instruments from such well-known companies as McIntosh, Audio Research, BAT, Jadis, Fender, KORG, Peavey, Vox, Soldano, Carvin, Ampeg, and Crane—could become a thing of the past.
