Tube amplifiers were supposed to be passé by now. Following World War II, transistor, or solid-state, amplification was to be the order of the day. Transistors were expected to replace vacuum tubes ...

Vacuum tube amplifiers just won’t go away. I am speaking more of audio vacuum tube amps than I am of microwave amps like magnetrons, klystrons, TWTs and the like. Most other audio gear is solid state ...

Vacuum tubes disappeared from electronic products years ago. Yet there have been some lingering vacuum tube-based products in production. Vacuum tubes disappeared from electronic products years ago.

Pure and Applied Research Alike Find a Multitude of Uses for the Electronic Tube. From the Laboratory to the Workbench, Electronics is Making Possible New Accuracy in Measurement and Control. A Survey ...