Roy Alexander Weagant

He attended preparatory school and college in Stanstead, Quebec, then McGill University, Montreal, where he saw demonstrations by Sir Ernest Rutherford, and from which he graduated with a BS degree in 1905.

When Reginald Fessenden contracted with the company for a steam turbine, Weagant applied for a job, and from 1908 to 1915 worked at Fessenden's National Electric Signaling Company's station at Brant Rock, Massachusetts, working on the design of the 100-kilowatt spark transmitter for the United States Navy's first high-power station at Arlington, Virginia.

In 1915, Weagant joined the Marconi Wireless Telegraph Company of America as a designer, and subsequently became its chief engineer.

There he invented the first attempts to avoid infringement of Lee De Forest's audion tube, by means of a Fleming valve with filament and plate.

He left RCA in 1924, joining with De Forest in research work, finally in 1925 retired to Lake Memphremagog, Vermont.