In this episode we sit down with Michael McWhorter and Andy Turner, the owners of Mojotone, to discuss how the vacuum tube market has changed over the last 20 years or so.  We will cover the different tube factories all over the world and how they have evolved.  We will cover Chinese tubes, Russian tubes, Czech tubes and Yugoslavian tubes.  This episode is less technical and more historical so if you're interested in knowing where your new and new old stock tubes have been coming from, you won't want to miss out.