Vacuum tubes [filem]

Geahča maid

• Inside the vacuum tube/
  Dahkki: 466257 Rider, John Francis
  Almmustuhtton: (1945)
• Fundamentals of vacuum tubes/
  Dahkki: 330871 Eastman, Austin Vitruvius
  Almmustuhtton: (1949)
• Vacuum tubes [kasetvideo]
  Almmustuhtton: ([19-)
• Basic vacuum tubes and their uses/
  Dahkki: 466257 Rider, John Francis, et al.
  Almmustuhtton: (1945)
• Vacuum-tube and semiconductor electronics/
  Dahkki: Millman, Jacob, 1911-
  Almmustuhtton: (1958)