If you get the "Sorry, the file cannot be displayed. There seems to be a technical issue ..." error when trying to view an image, please make sure you access the site at http://w140.com/tekwiki/, not www.w140.com/tekwiki/ (with "www"). Sorry for the inconvenience - we are looking for a generic solution.

Spiral accelerator

From TekWiki
Jump to: navigation, search
Spiral accelerator.jpg

The spiral accelerator is a helical resistive coating on a cathode-ray tube (CRT), designed to minimize beam compression in the post-deflection acceleration system by applying a gradually increasing acceleration voltage along the bulb's length.

It was first suggested in 1938 but not developed into a practical device.

In 1952, Howard Vollum revived the idea for the T51 CRT that Tektronix was developing for the 1953 model 535 scope.

The spiral accelerator displaced multi-band acceleration by the 1960s.