2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/113146The effect of external feedback on the oscillation characteristics of a device with the virtual cathode is investigated by the method of numerical modeling. A strong influence of the feedback phase delay onthe frequency and power level of signals generated in the system is demonstrated.2 pages, 2 figuresPlasma Physicstext