Valdemar Poulsen
Valdemar Poulsen (23 November 1869 – 6 August 1942) was a Danish engineer who developed a magnetic wire recorder called the telegraphone in 1898. He also made significant contributions to early radio technology, including the first continuous wave radio transmitter, the Poulsen arc, which was used for a majority of the earliest audio radio transmissions, before being supplanted by the development of vacuum-tube transmitters.
Valdemar Poulsen | |
|---|---|
Valdemar Poulsen (c. 1898) | |
| Born | 23 November 1869 |
| Died | 23 July 1942 (aged 72) Gentofte, Denmark |
| Nationality | Danish |
| Occupation | Engineer |
| Engineering career | |
| Projects | magnetic wire recorder, arc converter radio transmitter |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.