The paper presents the results of theoretical and experimental studies of multispeed electron beams. Theoretical and experimental studies of the structure of such beams are considered. It is shown that turbulence forms in such electron beams. It leads to the formation of multiple bunches of space charge, which are sources of broadband noise-like fluctuations. The results of experimental studies of small-sized laboratory model of the generator based on the principles of formation and use of multispeed turbulent electron beams are shown.
