Surge arresting devices such as carbon blocks or gas tube shunts to ground do not isolate the circuit but divert high voltage currents from the protected circuit.

Tesla used an incandescent-type lamp globe with a single internal conductive element and excited the element with high voltage currents from a Tesla coil, thus creating the brush discharge emanation.

Should the pilot miss or misplace a keystroke within the sequence, his plane would not only fail to start, but the defense computer would redirect the paths of two high voltage currents into the pilot's couch.

He saw her stiffen, her flesh suffused with a fiery radiance that shrivelled the frail garment on her body, her whiteness blackened as though she had been electrocuted by a high voltage current.

The high voltage current was then taken to a fixed electrode on the front bearing case, from which the sparks would jump to the spark plugs in the cylinder heads as they passed within 1/16 inch from it.