Multi-band acceleration

Instead of the previously used single post-deflection acceleration electrode, high-performance CRTs in the 1940s/1950 began using a series of separate accelerator electrode bands applied to a cylindrical bulb. These bands were separated by insulating bands, and supplied with progressively higher voltages through individual HV connectors.

A disadvantage of this scheme is the additional distortion and compression it causes.

The 5XP CRT is an example of a tube using multi-band acceleration.

Multi-band accelerators were replaced by spiral accelerators in the course of the 1950s.

Literature

• Peter Keller, The Cathode-Ray Tube: Technology, History, and Applications, pp.103-104. Palisades Press, 1991. ISBN 0963155903, 9780963155900
• Oscilloscope Cathode-Ray Tube Concepts, Chuck Devere, 1969; p.47+
• Design and development of a non-compressing post-deflection method for CRTs (Perkins, 1967)

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  Multiple acceleration voltages are applied to the 5XP CRT in the 513

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  The 5XP tube