An elementary manual of radiotelegraphy and radiotelephony for students and operators
A teaching manual of radiotelegraphy and radiotelephony by J. A. Fleming, published in London by Longmans, Green in 1916 for engineering students and working wireless operators. The plates are line diagrams of spark gaps, induction coils, tuning circuits and rotating machinery, mixing schematic symbols with shaded sectional drawings, useful for circuit motifs, coil spirals and letter-keyed technical labelling.
