[en] The electrical characteristics of single crystals of strontium-barium niobate solid solutions have been studied. The temperature dependences of the electrical conductivity were obtained for different Sb compositions, nominally pure Sb:61 and Sb:75 and Sb doped with rare earth and transition-metal impurities. The influence of the chemical composition of a solid solution, thermal treatment conditions, dopant concentration, and electrode type on the specific features of the electrical conductivity of single crystals in the temperature range 20-450 deg. C is shown