The First Electron Tube In 1904 John Ambrose Fleming wrote Guglielmo Marconi: "I have been receiving signals on an aerial with nothing but a mirror galvanometer and my device." The device was the ...

A Welch model 2639 'Electron Diffraction tube' is used in an experiment in the second year lab. The tube has graphite and aluminum foils mounted on a grid between the electron gun and the screen of ...

Reader [Xellers] sent in his newest instructable: DIY Electron Accelerator: A Cathode Ray Tube in a Wine Bottle. While not exactly what you might think of a cathode ray tube, the basics are in place.

The cathode tube was a prime example ... is the lifeblood of everything from computers to phones to microwaves, the electron turned out to be interesting to just about everybody.

Offers a range of light detection solutions, down to photon counting levels, from UV to near IR. Products include photomultiplier tubes, power supplies with low power consumption, signal processing ...

Vacuum tubes are electronic components used to amplify, switch, modify and/or create analog signals by controlling the movement of electrons in low-pressure spaces. These components are used in ...

[Segelfam] built his own scanning electron microscope. He based the machine around an old Vidicon tube, a video recording technology that was used in NASA’s unmanned space probes prior the ...