Read This First -  Before you go to sample The Outline of Radio on this web page, you might want to find out more about the author: John V. L. Hogan.  I encourage you to read his biography below.  Hogan was deeply involved with radio when he wrote his book in 1922-23.  

Hogan's book is exactly as written, but has been enhanced with Hyper-Text links to additional information such as:

An Introduction to
John Vincent Lawless Hogan
Radio Pioneer

Bio information gathered from many sources,
compiled by John Dilks

John V. L. Hogan was born in Bayonne, NJ on February 14, 1890. As a boy in 1902, Hogan built his first amateur radio station using the coherer as a detector, at his home in Bayonne. By 1906 he was employed as a laboratory assistant to Dr. Lee De Forest; he was just 16 years old. De Forest was experimenting with the audion and radiophone. Hogan's assignment was to make the first quantitative study of the plate current characteristics of the De Forest's grid triode.

Hogan attended the Sheffield Scientific School at Yale University during 1908-10, specializing in physics, mathematics and electric waves.

It was in 1910 when he went to work for R.. A.. Fessenden and the National Signaling Company at the famous Brant Rock station. He served as a telegraph operator. He helped develop Fessenden's first patient on the crystal detector, issued in 1910. Hogan also discovered the "rectifier heterodyne." His associate, J. W. Lee, had observed some peculiar effects when a special transmitter was being operated while the station was receiving messages. Referring back to some of his work at Yale, Hogan succeeded in multiplying the sensitiveness of the radio receivers literally more than a hundred times. He reported this before the Institute of Radio Engineers in 1913.

Fessenden was so impressed with Hogan that he assigned him the important job of Supervisor for the erection of the Bush Terminal Station in Brooklyn, New York. There he developed perhaps the first ink tape siphon for recording transatlantic radio signals, using an audion amplifier.

Hogan would work for Fessenden until 1914, but his respect and admiration for the man would last until his death. Later he would write about Fessenden at some length, in his 1923 book The Outline of Radio.

In 1912 he was instrumental in the formation of the Institute of Radio Engineers (by consolidating the Society of Wireless Telegraph Engineers with the Wireless Institute.) In 1913 he had charge of the acceptance tests of the U.S. Navy's first high powered station at Arlington. Later he became the chief research engineer, 1914-17. He worked on high-speed recorders for long-distance wireless.

In 1917 he was appointed commercial manager of the International Signal Company. Placed in charge of operations and manufacturing with emphasis on radio outfits for submarine chasers and aircraft. In 1918 he was made manager of the International Telegraph Company. And in 1920 was elected president of the Institute of Radio Engineers.

It was his 1912 patent of a single-dial tuning system for radio receivers that would become his good fate. The advent of home radio and radio broadcasting in1920 required a simple, one knob control for tuning in stations. He would capitalize on this. Broadcast radio also inspired Hogan to write many scientific articles for the technical press.

Hogan established his own consulting practice in 1921, where he specialized in broadcast apparatus and radio regulations. In 1928 he added facsimile and television to his laboratory work. Always interested in tonal quality, he built the first high-fidelity radio station. First licensed as W2XR, a 250-watt experimental station in 1934. Later this station would become New York City's WQXR with 10,000 watts, playing classical music.