Tambura

All of us at Carnatic Latté have taken a long break. We're back with a note on the most important and fundamental aspect of Carnatic Music - Sruti, Tambura. Just a few questions that come to my mind!

1. Are these two separable and existent without the other?

2. Why is a Tambura referred to as 'Manual' Tambura?
3. What exactly is a Sruti 'Box' or 'Electronic' Sruti that substitutes the Tambura?

Your thoughts.....

-Rithvik