Where is my power source?


Hint 1 of 4:
Dr. Fred had a power source in his basement in the 20th century.  Perhaps
it's still in the basement of Laverne's time.

Hint 2 of 4:
Yes, it is, but you first need to get down to the basement.

Hint 3 of 4:
By getting into the grandfather clock.  Another question tells you how.

Hint 4 of 4:
There it is, the hamster generator!  But you need a hamster.