Well, I have a Mark IIa and it has the through the hole type connection. Per the specs on the encoder it was supposed to be a through the hole type, but it showed up as the surface mount type. That was no big deal. I just filled the holes from the back with solder and that worked fine. So I guess you could say this encoder works on either Mark II. It sure has a better quality feel than the old one. I did do some other mods to the encoder: ground the shaft some; removed the corner mounting pad (really didn’t probably need to) and cut off a couple plastic centering tabs with a razor blade.

I would think you could order directly from Mouser no matter where you are. They have no minimum order, which is nice. They were $3.20 a piece, which I consider a good price.

If you do need me to send them to you I can.