Autotransformer `` AT-3M ''.

Power supplies. Rectifiers, stabilizers, autotransformers, transient transformers, etc.Regulating autotransformersSince 1967, the AT-3M autotransformer has been produced by several enterprises in the country. "AT-3M" modernized. Differs from previous models with backlight and manufacturers. Designed for manual maintenance of the voltage at 127 or 220 V when the PTA is powered up to 250 W when it is changed in the network.