Vintage juvenile fiction from 1913, young people make good through pluck and luck, radio was a new fangled novelty, and regular broadcasting was years away. Bill Brown, the teenage title character and his school chums accept a job to build a small hydro electric plant, including the dam, on the estate of a well to do local resident. They later build a radio receiver from scratch, making the cabinet and building most of the components by hand. I expect most modern teens would have neither the skill nor the ambition to take on projects like this.