A Nepali debate forum for the young and critical minds ...


You are not connected. Please login or register

By the 1950s

View previous topic View next topic Go down  Message [Page 1 of 1]

1 By the 1950s on Sat Dec 11, 2010 6:53 pm

taixyz1992


Active Debator
Active Debator
The theory of mechanical filters was first applied to improving the mechanical parts of phonographs in the 1920s. By the 1950s mechanical filters were being manufactured as self-contained components for applications in radio transmitters and high-end receivers. The high "quality factor", Q, that mechanical resonators can attain, far higher than that of an all-electrical LC circuit, made possible the construction of mechanical filters with excellent selectivity. Good selectivity, being important in radio receivers, made such filters highly attractive. Contemporary researchers are working on microelectromechanical filters, the mechanical devices corresponding to electronic integrated circuits.


silver charm bracelets
timberland boots store

View user profile

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum