Autotrafo 250V AC/DC

The output of the autotrap is switched on by a rocker switch located between the output terminals. When it is switched on, the red on indicator lights up. The AC output terminals have a voltage corresponding to the position of the knob on the scale. For the DC output, the voltage will be 1.41 times greater. The DC output is not fitted with a filter capacitor - there is only a rectifier bridge.
If the output is overloaded or shorted, the fuse will blow. This condition can be detected by the lamp not lighting up when the output switch is turned on.