Wednesday, 28 April 2021

3 POINTS ON RADIO


1. Radios reform radio waves:  A diode or variable capacitor tunes in one of the many signals picked by the aerial

2. Diodes and capacitors turn the signal into a smooth direct current.

3.  A transistor amplifies the electrical signal &feeds it to a loud speaker.





No comments:

Post a Comment

Ponni Raw Rice: The Everyday Rice of the Cauvery Delta

    Rice is not merely a staple in South India. It is part of the rhythm of everyday life. Breakfast may have idli or dosa, lunch may begi...