An early-twentieth-century practical guide that starts with cells and batteries and works up through push-buttons, switches, magnets, induction coils, annunciators and galvanometers. The second part tackles resistance, telephones, line and wireless telegraphs, dynamos, motors and electro-plating, with instructions for building each apparatus and a dictionary of electrical terms. Its wiring practices predate modern safety codes.
A fascinating record of how the electrical age was explained to curious boys, for hobbyists and historians of technology. Download the free EPUB.