If you have a 301, the cord is exactly like the featherweight cord. You could at least see if she sews. Some of the 301's have two plugs but, some have one, just like the featherweight.
Wow! You did a super job cleaning Birdie! WEre you following "directions" on how to clean her?...and were they posted on the board somewhere?
Congrats on your new family member!