Richard Clark, KB7QHC wrote:
"---by A. Frederick Collins inventor of the Wireless Telephone, 1899."

Collins apparently connected an arc lamp to an arial and ground, using a
microphone transmitter to modulate the oscillations it set up. I suppose
a carbon button in series with the d-c to the arc would do that.

Success has many authors. The airplane had many builders around this
productive era, but it is the Wright brothers that are credited with the
first practical success.

Fessenden was a Canadian who happened to be Chief Engineer of the Radio
Corporation of America, successor to the American Marconi Company.
Fessenden holds more patents than aqnyone except Thomas Edison, who once
employed Fessenden. Fessenden`s modulation method was control of the
excitation of an r-f alternator by a magnetic amplifier which he
modulated with audio, speech, music or whatever, even dots and dashes.
Modulation of high r-f powers was commonplace. Hundreds of kilowatts
were produced and modulated by the Fessenden method. A relic of the era
in Sweeden is still revived annually for demonstration, I believe.

Best regards, Richard Harrison, KB5WZI