Mr.Nikola Tesla should be mentioned here, he is the one that invented Radio signals controlled boat which contains radio-activated switch ( coherer ) in side the aparatus back then in 1898...
There was a dispute, because the original inventor was Temistocle Calzecchi Onesti in Italy, and then the French came and told that was Branley, but he did the coherer 6 years later.
The inductance would be incredibly low, may produce impedance in the microwave range. Simply a wound antenna like any whip CB antenna on a vehicle, just shortening the physical length of the package.
This video finally explained to me how radio signals work.. Can even say it clicked! But seriously. Thank you very much!!
Mr.Nikola Tesla should be mentioned here, he is the one that invented Radio signals controlled boat which contains radio-activated switch ( coherer ) in side the aparatus back then in 1898...
Oh yes! He invented the first radio controlled boat in the world.
I bet those old sparks before and probably caused some dynamite accidents
thenks for demo
good work
Can you show us how to build the receiver
Great and simple!
Wasn't this known as the "Branley" detector?
There was a dispute, because the original inventor was Temistocle Calzecchi Onesti in Italy, and then the French came and told that was Branley, but he did the coherer 6 years later.
thank you sir
Why are the antennas in the form of inductors?
The inductance would be incredibly low, may produce impedance in the microwave range. Simply a wound antenna like any whip CB antenna on a vehicle, just shortening the physical length of the package.
Una traduzione in italiano ???
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good work
Una traduzione in italiano ???