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Rectifiers universal semiconductor "VUP-2" and "VUP-2M" were produced by the Leningrad plant "Electrodelo" presumably from 1970 and 1980, respectively. "VUP-2" is a universal source of rectified voltage to power radio devices in general educational institutions. Allows you to get a rectified voltage of 350 V at a current of 220 mA; continuous filtered voltage 250 V with a load of 50 mA; adjustable voltage from 0 to 250 V DC to 50 mA; adjustable voltage from 0 to 100 V and from 0 to - 100 V DC, up to 10 mA; 6.3 VAC voltage up to 3 A. An octal panel located on the front of the rectifier serves to connect power to the centimeter-wave generator. Rectifier "VUP-2M" allows you to get the same voltage as the "VUP-2" with the exception of a regulated voltage of 250 volts.