What are collet knobs?

[KA4HJH]

>It is Selco brand collet knobs that are found on all of the
>old Oberheim synthesizers, from the SEM to the Xpander/Matrix 12.

I don't suppose anyone out there has a couple of extra caps for the 
SEM laying around? (funny how those pop off when you're moving 
things).

I think I also need one or two for the Simmons SDS-8. Who makes those?


-- 
Terry Bowman, KA4HJH
"The Mac Doctor"