rheostat knob

["Don Vierling" <Don.Vierling@stago-us.com>]

Anyone know how to get the knob off the rheostat that controls the dash
lights?  Is it a press fit on the shaft or what?  My rheostat seems is
non-functional and no longer rotates (seems to be seized), but I didn't
want to beat on it without knowing how it was supposed to come apart
first.  I thought if I could get it out of the dash I could maybe free
it up and make it work again.  Any help greatly appreciated.
thanks,
Donny V
1978 MGB