Hello, all, You can read this article online here: <http://www.americanheritage.com/it/2002/02/tube.shtml> 73 de Norman KG4SWM Terry O'Laughlin wrote: > > There is great story on vacuum tubes in the latest issue of > "Invention and Technology" (Fall 2002). The anecdote from a Jean > Shepherd radio show about why transistors will never replace vacuum > tubes is terrific.