[sdiy] Yamaha parts in! CS-20M slider knobs anyone? Omni2? Chroma Polaris?

[Bob Weigel]

  I now have keys for Yamaha later CS series.  And also some other 
assorted parts. BTW if anyone has an SK series open some time and can 
let me know if they are the same that would be wonderful.  Wondered if 
anyone knew of sources for similar/identical knobs to any of these.  I'm 
missing 4 off this unit and the Omni 2 is missing the left half on the 
sliders.  I subbed on the old style things for now.  And I'll be missing 
one on my Chroma Polaris as I have to put it on the auction unit I have 
up.  These look so common. Doesn't anyone make anything close?  The 
mouser ones have the wrong shaft size..these are bigger.  -Bob