At Oak Ridge National Laboratory in Tennessee, a half-dozen workers are making what appear to be gray billiard balls.

TM 11-662 Basic Theory and Application of Electron Tubes 1955-11-08.Introduction 1 1 Importance to communication 2 1 Early experimenters 3 2 Tube types 4 ...

In this article, an ultracompact high-isolation power coupler prototype is demonstrated for high-efficiency injection and extraction of electromagnetic energy from the sheet beam traveling wave tubes ...

Power clearly isn’t what it used to be. We see Goliaths being toppled by Davids all around us, from the networked drivers of Uber to the crowdfunded creatives of Kickstarter. But it’s ...

Offshore umbilical cables often include both power cables and elements such as metallic tubes and signal cables. It was concluded from a recent failure of stainless tubes that ac corrosion was the ...