Valdemar Poulsen (redirect from Telegraphone)
a Danish engineer who developed a magnetic wire recorder called the telegraphone in 1898. He also made significant contributions to early radio technology...
13 KB (1,389 words) - 04:14, 19 August 2024
be made commercially available anywhere was the Telegraphone, manufactured by the American Telegraphone Company, Springfield, Massachusetts in 1903. The...
21 KB (2,860 words) - 13:27, 27 June 2024
plant operator Operator of a stationary winch, launching a hang glider. Telegraphone with operator "Society of Broadcast Engineers". Sbe.org. Retrieved 2019-06-05...
3 KB (183 words) - 11:59, 6 September 2024
telephone-based recording devices with no means of amplification, such as the telegraphone, it remained so until the 1920s. Between the invention of the phonograph...
62 KB (7,778 words) - 02:03, 18 September 2024
cars, dry cell batteries, electric fire engines, talking films, the telegraphone (the first magnetic audio recorder), the galalith and the matryoshka...
82 KB (9,689 words) - 20:18, 23 September 2024
and played back through a loudspeaker. The first wire recorder was the Telegraphone invented by Valdemar Poulsen in the late 1890s. Wire recorders for law...
48 KB (5,599 words) - 16:42, 7 September 2024
demonstrated in principle as early as 1898 by Valdemar Poulsen in his telegraphone. Magnetic wire recording, and its successor, magnetic tape recording...
65 KB (9,343 words) - 14:53, 25 September 2024
Danish inventor Valdemar Poulsen (1869–1942), who was the inventor of the telegraphone steel wire magnetic recorder. Tigerstedt, too, had experimented with...
17 KB (2,276 words) - 21:37, 30 May 2024
used in the Navy for recording radio and telephone conversations – the "telegraphone" – and the manufacturer was no longer in business. He remained in the...
15 KB (1,920 words) - 02:13, 2 July 2024
Votey completes the first Pianola 1898 : Valdemar Poulsen patents the Telegraphone 1906 : Thaddeus Cahill introduces the Telharmonium to the public 1906 :...
23 KB (2,295 words) - 14:35, 7 August 2024
telephone-based recording devices with no means of amplification, such as the Telegraphone, it remained so until the 1920s, when several recent radio-related developments...
33 KB (4,302 words) - 16:55, 7 May 2024
medicine. The semi-automatic Luger pistol is patented by Georg Luger. The telegraphone, a magnetic wire recording machine, is patented by Valdemar Poulsen....
10 KB (1,057 words) - 10:07, 2 August 2024
Poulsen on the developmental work on Wire recorders, which he called a telegraphone, the arc converter known as the Poulsen Arc Transmitter, and his work...
5 KB (282 words) - 20:59, 4 April 2024
of recording television signals on 'a magnetic record of the Poulsen telegraphone type'. Sound would be recorded in sync on the reverse side. These ideas...
2 KB (214 words) - 04:20, 1 May 2024
demonstrated in principle as early as 1898 by Valdemar Poulsen in his telegraphone. Magnetic wire recording, and its successor, magnetic tape recording...
79 KB (9,603 words) - 16:41, 8 June 2024
661,619 for the first sound recording device, which he called the "telegraphone". In the summer of 1898, Poulsen found that a telephone, connected to...
34 KB (4,082 words) - 18:47, 20 August 2024