Growing demand for capacitors K75-40 caused such reaction as increase of the volume of their output. Composite dielectric pulse capacitors K75-40 (voltage U=750 to 5000V; capacitance C=2 to 100 ?F) have small internal resistance, that allows to charge them from low-powered current source and discharge in a moment. They are used as an accumulators of energy and can be joined to a battery. They are also operated at frequencies until 50 Hz. These factors have an impact their wide application in laser technologies and electric equipment.