Welcome skimchick, I don't think Leon's will work on your machine, as I think the 'legs' going between the pins for your machine aren't as long as his. A picture would help of where it plugs in and the dimensions. I know several look similar or may be the same height and are as wide. While each will fit multiple machines, the plug needs to be the right one. I think Kif is correct and your machine was probably made by Brother. It appears that BL1220 and maybe SL1220 are similar machines.
I'm guessing that
https://www.sewingpartsonline.com/fo...-fc-yuk3s.aspx and
https://www.sewingpartsonline.com/fo...033770217.aspx would work for your machine. There are a lot of Alternate Part Numbers such as FC-Z, 317353-001, 369263-003, EZ-168A, YUK3SR1, 4C316B, 369263003, 772, 796, 988216-001, 60652 you could see if you could find one of the other numbers would work for your machine or one of the other model 1220s;
Janey - Neat people never make the exciting discoveries I do.