It looks very nice, even in the state it's in! What a fantastic find, the cabinet looks very nice too. I hope you can get to look nice again. I'm in awe of what Glenn and Miriam can do to restore old machines like this.
Yes, I have tired ultrasonic cleaners, and they work very well. It's ideal for items with very intricate surfaces, hard to clean, lots of tiny grooves and indentations. They make the job effortles and very thoroughly. I have a tiny battery operated version of it for my contact lenses. You will love this thing, but I'm not sure how handy it will be for sewing machine parts. I get parts just as clean with out it though, by finding the right stuff that does the job. Sometimes it's the last polishing up that makes the difference. I have soaked smaller metal bits like chromed plates and feet in white wash laundry powder and hot water (not for long though), it loosens grime very well and when rinsed in hot water and dried off immediately there's no chance of rust. Hard to reach place turns out very clean.
Last edited by Mickey2; 05-15-2016 at 03:50 AM.