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Immediately after the
first practical
tests
with
transmitting and receiving telegraphic
messages, and
later narration and music,
amateurs
started building their own
radio equipment.
Already in the
early years of the 20th century,
material was sold for
building your own
receiver and/or transmitter.
Radio
magazines,
broadcasting
and commercial
companies
have published
circuits
for the home building
amateur. |
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