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An all-electronic system for automatic setting of the transfer coefficients of operational amplifiers in analog and hybrid computers is described. It is built on the basis of magnetic semiconductor code- and voltage-to-resistance converters. The main features in which the system differs from the conventional types  -  are the use of internal long-term memory and nonprecision resistors. This results in a reduction of the volume and cost of the converters' hardware. The transfer coefficient setting unit is simplified and high accuracy of conversion is maintained.