I've been fiddling around with the 66 and it works very well. I just finished sewing a test run through 8 layers of cloth, all that would fit under the foot and the machine handled it beautifully.
Sheluma thanks for the info on the slide plate for the 101 and unfortunately there are no attachments hiding in the seat on the 66. I'm not complaining though. For $20 and tax I have a working classy looking sewing machine in a cabinet with a matching seat.
Lovelyl You are probably right about the wiring. Have you looked at it yet? The wiring on these old machines is very simple, there's a very good chance you can fix it yourself. If it does turn out the motor is shot, I know I saw a couple motors for the 101 on Ebay a couple days ago. I haven't checked if the auctions have ended so I don't know if they are still listed or not.
Is there a way for me to edit the original title to reflect a model 66 instead of a 15?
Thanks,
Rodney