Edward M. Godshalk
Allen A. Sweet
Enrico Rubiola
Andrei Grebennikov
John E. Carroll
Michael Odyniec
C. J. Edgcombe
O.N Li︠a︡shenko
Pieter L. D. Abrie
Roman Baican
M. J. Howes
P. Morrison
V. J. Rogers
Bert Jeppsson
Anders Rydberg
N. S. Davydova
Unknown Author
Xu Yan
Robert R. Romanofsky
Varian Associates. Palo Alto Microwave Tube Division