Thanks for your additional inputs.

The aspect with respect to rate of change of incoming frequency is interesting.

Anyway the proof of the pudding is in eating it or so they say. The circuit with LM331 is under assembly and will go on trial tomorrow. WIll revert in case of any surprise results.

And yes life in Chennai is limping back to normal. But a big question that has now risen is this : Die [or] survive alone loosing all of the family [or] survive with serious handicaps - which event is better ? ( if better is the word for it...)

Thanks for your concern.


Regards

Raghu