X-Nico

3 unusual facts about Fleming valve


Fleming valve

Although the contact, reported November 12, 1901, was widely heralded as a great scientific advance at the time, there is also some skepticism about the claim, because the received signal, the three dots of the Morse code letter "S", was so weak the primitive receiver had difficulty distinguishing it from atmospheric radio noise caused by static discharges, leading later critics to suggest it may have been random noise.

In 1901 Fleming designed a transmitter for Guglielmo Marconi to attempt transmission of radio waves across the Atlantic from Poldhu, England, to Nova Scotia, Canada.

Roy Alexander Weagant

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.



see also