Valdemar Poulsen | |
|---|---|
 Valdemar Poulsen (c. 1898) | |
| Born | 23 November 1869 |
| Died | 23 July 1942 (aged 72) Gentofte, Denmark |
| Nationality | Danish |
| Occupation | Engineer |
| Awards | Valdemar Poulsen Gold Medal (1939) |
| Engineering career | |
| Projects | Tikker Magnetic recorder Poulsen arc |
Valdemar Poulsen (23 November 1869 – 23 July 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, [1] which was used for a majority of the earliest audio radio transmissions, before being supplanted by the development of vacuum-tube transmitters.[2]
- ^ "Wireless Telephony", Electrical World, December 8, 1906, page 1121.
- ^ Amateur Radio by Maurice J. Grainger, 1922, page 87.