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Sources of alternating current "B2-2" and "B2-3" were produced presumably since 1982. Models differ only in output power of 500 and 1000 V * A, respectively. IPT "B2-2" and "B2-3" ensure that the supply voltage (220 V, 50 Hz) of the exact electronic (measuring) equipment is kept constant. It is possible to work with the same type of instruments. Power consumption 550 V · A (B2-2); 1200 V · A (B2-3). Overall dimensions of any stabilizer 435x130x235 mm. Weight 20 kg.