1. High Voltage/High Current Switching Devices:Ignitrons,Krytrons,Thyratrons,Spark Gaps,etc.

    E-mailed from John Pasley in England

    A downloadable 12kb zip file of the original plain text is available here

  2. The Marx Generator & The Febetron

    These two are not really vacuum tubes,but fit in well with John's' material on spark gaps.