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November 2, 1920 was the first time the radio went to the public.
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Difficult to answer...it happened in small stages.
Marconi in very late 19th century achieved the first transmission and reception. I believe he used a spark-gap transmitter and a coherer receiver.
Then Lee DeForest invented the triode tube (1920), and the superhet became possible.
Then directly heated tubes appeared, and portable radios became possible. (about 1950)
Then the transistor was invented, also in several stages, becoming practical about 1965.
What else can I help you with?
Who invented the radio collar?
John and Frank Craighead invented radio collars for Grizzly bears.
Was the radio invented in Kentucky?
No.
Did Hertz invent the radio?
No. The radio was invented by Guglielmo Marconi.
In what state was the radio invented?
Radio was invented in Britain and Germany, not the USA.
What year was radio invented and who invented it?
It was invented by Guglielmo (William) Marconi in 1895.
When did guglielmo marconi invented the radio?
Marconi was 20 when he invented the radio.
Was the radio invented by the Italians?
yes gugelimo marconi invented the radio
When was the car radio invented?
The first car radio was invented in 1929.
Who invented the radio in which year?
jamie ranson invented the radio in 1954
Were was the first radio invented?
the first radio was invented in 1896 by guglielmo marconi
Where was the Radio invented where?
The first person could be Thomas Elva Edison who invented radio.
Who invented the radio collar?
John and Frank Craighead invented radio collars for Grizzly bears.
What is Guglielmo Marconi's invention known as in the US?
Marconi invented the radio. He invented a successful system of radio telegraphy in 1896. In 1895, Marconi invented equipment that transmitted electrical signals through the air (part of telegraphy and radio transmission).
Who inveneted the radio?
Guglielmo Marconi invented the radio
Was the radio invented in th e1920s?
the radio was not invented in the 1920s, but it came out in the 1920s when people could buy them
When was the shortwave radio invented?
I was invented in 1896 to 1922.
What was the date that the radio was invented?
It was invented around 1880.
