PPPL-3763 is available in pdf format (772 KB).

Models for Automated Tube Performance Calculations

Author: C. Brunkhorst

Date of PPPL Report: December 2002

Presented at: the Nineteenth IEEE Symposium on Fusion Engineering, Atlantic City, New Jersey, January 22-25, 2002.

High power RF systems, as typically used in fusion research devices, utilize vacuum tubes. Evaluation of vacuum tube performance involves data taken from tube operating curves. The acquisition of data from such graphical sources is a tedious process. A simple modeling method is presented that will provide values of tube currents for a given set of element voltages. These models may be used as subroutines in iterative solutions of amplifier operating conditions for a specific loading impedance.