Abstract: An electrooptical camera comprises an image intensifier connected to a control system for gate and scanning, which system includes a serial arrangement of a trigger oscillator, a master oscillator and an amplifier unit, which comprises preamplifiers and output amplifiers for the gate and scanning channels. The trigger oscillator is a relaxation oscillator utilizing an avalanche transistor and a storage capacitor in its collector circuit. The master oscillator is a Marx oscillator with an optical input and with cable line timing sections of different lengths in its collector circuits. The output amplifier of the gate channel is coupled to the gate system of the image intensifier. The output amplifier of the scanning channel is electrically coupled, via integrators, to a load in the form of a wide-band two-channel cable transformer/shaper, which is coupled to the deflection system of the image intensifier.

Abstract: An image intensifier comprises an evacuated tube envelope which accommodates a serial arrangement of a photocathode, an accelerating electrode having a hollow cylinder in which an element with a grid is disposed, said grid being placed on that end of the element which faces the photocathode, a focussing electrode made in the form of a hollow cylinder having a diameter equal to the diameter of the hollow cylinder of the accelerating electrode, an anode diaphragm, an electronic gate with a diaphragm and deflecting plates and an image scanning system each constituting a through-type two-conductor circuit and having terminals disposed on the tube envelope and a fluorescent screen, the distance L between the photocathode and the fluorescent screen, the distance S.sub.1 between the accelerating and focusing electrodes, the distance S.sub.2 between the focusing electrode and the anode diaphragm, as well as the lengths l.sub.1, l.sub.