Insulated collector assembly for power electronic tubes and a tube comprising such a collector

An insulated electron collector assembly for high-power electronic tubes of the type comprising an outer insulating sleeve, an inner collector, and a resilient assembly means therebetween, wherein said resilient assembly means consist of a series of flexible metal pieces in the form of teeth distributed on the outer surface of the collector, along rows parallel to the collector axis, said teeth being obliquely directed with regard to the collector axis and to the cross sectional planes perpendicular to said axis and being divided with respect to a cross sectional plane of said collector in two groups, each group having different inclinations.