Inventors
Valdemar
Poulsen
Valdemar
Poulsen (1869-1942) was a Danish electrical engineer and inventor. Poulsen
invented the telegraphone for recording telephone conversations and the
Poulsen Arc Transmitter.
Poulsen
Arc Transmitter
The arc transmitter which contrary
to all previous types of radio transmitters - generated continuous radio
waves. The transmitter was invented by the Danish engineer Valdemar Poulsen
in 1902.
Valdemar
Poulsen
Biography and patent drawings.
Development
of Electromagnetic Tape Recording
Contributions to sound recording
made by Valdemar Poulsen.
Related Innovations
History
of Sound Recording
©Mary
Bellis
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