Re: "a mistaken split-second push in the wrong direction"
Probably not an autotransformer (which has only one winding and does not provide any isolation), but a proper safety isolating transformer, tapped 55-0-55 volts with the centre tap earthed.
Probably not an autotransformer (which has only one winding and does not provide any isolation), but a proper safety isolating transformer, tapped 55-0-55 volts with the centre tap earthed.