Hello all. I just aquired a like new looking Sankyo 401 electric alarm clock. My only problem with it is that it has an audible grinding hum coming out of it. Not too loud, but loud enough for me to hear across the room. I’m pretty sure this sound is coming from the motor and not the other parts of the mechanism, but I could be mistaken. My question is, is it possible to quite this unit down? I understand the motor is sealed, but also easily removed and not a unique part as I’ve seen ones like it in other clocks not made by Sankyo. Is there a modern replacement for it? If you can see any other points in the mechanism that could be quieted, please let me know. Thanks!