telegraphone मीनिंग इन हिंदी

उदाहरण वाक्य

1. The American Telegraphone Company went bankrupt in 1915 after selling only a few hundred units.
2. The first wire recorder was the Telegraphone invented by Valdemar Poulsen in the late 1890s.
3. Magnetic recording was demonstrated in principle as early as 1898 by Valdemar Poulsen in his telegraphone.
4. Like the recording devices that came before it, the telegraphone recordings were nearly impossible to edit.
5. The magnetic recording was demonstrated in principle as early as 1898 by Valdemar Poulsen in his telegraphone.
6. After being activated by the signal for an incoming call, the telegraphone recorded the transmitted electrical impulses directly onto the wire.
7. The telegraphone could also record both sides of a telephone conversation, with or without the knowledge of the party at the other end.
8. Poulsen's original telegraphone and other very early recorders placed the two poles of the record / replay head on opposite sides of the wire.
9. With the addition of electronic amplification developed by Curt Stille in the 1920s, the telegraphone evolved into dictation during the 1940s and into the 1950s.
10. They had been invented in 1898 when a Danish engineer named Valdemar Poulsen patented the first magnetic recorder which he called the " telegraphone ."